Hydrogen-Induced Cracking Tests of High-Strength Steels and Nickel-Iron Base Alloys Using the Bolt-Loaded Specimen

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ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Hydrogen-Induced Cracking Tests of High-Strength Steels and Nickel-Iron Base Alloys Using the Bolt-Loaded Specimen by :

Download or read book Hydrogen-Induced Cracking Tests of High-Strength Steels and Nickel-Iron Base Alloys Using the Bolt-Loaded Specimen written by and published by . This book was released on 1997 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen-induced cracking tests were conducted on high strength steels and nickel-iron base alloys using the constant displacement bolt-loaded compact specimen. The bolt-loaded specimen was subjected to both acid and electrochemical cell environments to produce hydrogen. The materials tested were A723. Maraging 200, PH 13-8 Mo. Alloy 718, Alloy 706, and A286, ranging in yield strength from 760-1400 MPa. The effects of chemical composition, refinement, heat treatment, and strength on hydrogen-induced crack growth rates and thresholds were examined. In general, all high strength steels tested exhibited similar crack growth rates and threshold levels. In comparison, the nickel-iron base alloys tested exhibited crack growth rates up to three orders of magnitude lower than the high strength steels tested. It is widely known that high strength steels and nickel base alloy's exhibit different crack growth rates, in part, because of their different crystal cell structure. In the high strength steels tested, refinement and heat treatment had some effect on hydrogen-induced cracking, although strength was the predominant factor influencing susceptibility to cracking. When the yield strength of one of the high strength steels tested was increased moderately, from 1130 MPa to 1275 MPa, the incubation times decreased by over two orders of magnitude, the crack growth rates increased by an order of magnitude, and the threshold stress intensity was slightly lower.

Fatigue and Fracture Mechanics

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Publisher : ASTM International
ISBN 13 : 0803124104
Total Pages : 697 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Fatigue and Fracture Mechanics by : John H. Underwood

Download or read book Fatigue and Fracture Mechanics written by John H. Underwood and published by ASTM International. This book was released on 1997 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 1134 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fatigue and Fracture Mechanics

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Publisher : ASTM International
ISBN 13 : 0803128991
Total Pages : 778 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Fatigue and Fracture Mechanics by : Walter G. Reuter

Download or read book Fatigue and Fracture Mechanics written by Walter G. Reuter and published by ASTM International. This book was released on 2002-12-31 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the whole of Asia and the Pacific region, this text provides both an analytic overview and specific data for each of the 60 countries. Introductory chapters cover regional issues, including: a regional review with the year's trends, developments and key events' analysis of the threat of terrorism in the region; the effects of deflation on the economy; the water crisis and its impact on the poor; and the successes and failures of micro-credit in the region.

Use of the Instrumented Bolt and Constant Displacement Bold-Loaded Specimen to Measure In-Situ Hydrogen Crack Growth in High-Strength Steels

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ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Use of the Instrumented Bolt and Constant Displacement Bold-Loaded Specimen to Measure In-Situ Hydrogen Crack Growth in High-Strength Steels by : GN. Vigilante

Download or read book Use of the Instrumented Bolt and Constant Displacement Bold-Loaded Specimen to Measure In-Situ Hydrogen Crack Growth in High-Strength Steels written by GN. Vigilante and published by . This book was released on 2000 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aggressive environments experienced by large-caliber gun tubes during processing and firing have led to much investigation of the hydrogen-induced cracking susceptibility of high-strength steels. Constant displacement bolt-loaded specimens were used to determine the hydrogen crack growth rates and threshold stress intensities of AF1410, both conventionally and isothermally heat treated, and AerMet 100. The severe susceptibility of high-strength steels necessitated the application and modification of a low-cost, highly reliable in-situ crack measurement method, the instrumented bolt. The instrumented bolt consisted of a full bridge, strain-gaged stainless steel bolt coupled to an automatic data acquisition system. New expressions were developed for use with the instrumented bolt and bolt-loaded specimen to relate load to crack growth. Stage II crack growth rates for the AF1410 were 1.1 x 10-2 and 2.3 x 10-2 mm/s for conventional and isothermal AF1410, respectively. Threshold stress intensity levels for AF1410 were 16.0 and 13.7 MPa • m1/2, respectively. Stage II crack growth rates for AerMet 100 were 2.4 x 10-2 mm/s, while the threshold stress intensity was 14.1 MPa • m1/2.

The Problem of Hydrogen in Steel

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ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Problem of Hydrogen in Steel by : A. R. Elsea

Download or read book The Problem of Hydrogen in Steel written by A. R. Elsea and published by . This book was released on 1963 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This memorandum introduces the problem of delayed, brittle failures associated with hydrogen in steel, particularly high-strength steel. It is intended to help the steel user determine if he has such a problem. The effects of hydrogen on the mechanical properties of steel are dealt with, and the behavior of material susceptible to delayed, brittle failure is described. Also, the effects of such factors as strength level, magnitude of applied stress, hydrogen content, steel composition, test temperature, and strain rate on hydrogen embrittlement and the susceptibility to hydrogen-induced, delayed, brittle failure are discussed. Possible sources of hydrogen in steel and the types of tests useful in determining the susceptibility to delayed failure are outlined. (Author).

Use of the Instrumented Bolt and Constant Displacement Bolt-Loaded Specimen to Measure In Situ Hydrogen Crack Growth in High Strength Steels

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (455 download)

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Book Synopsis Use of the Instrumented Bolt and Constant Displacement Bolt-Loaded Specimen to Measure In Situ Hydrogen Crack Growth in High Strength Steels by :

Download or read book Use of the Instrumented Bolt and Constant Displacement Bolt-Loaded Specimen to Measure In Situ Hydrogen Crack Growth in High Strength Steels written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aggressive environments experienced by large caliber gun tubes during processing and firing have lead to a great deal of investigation on the hydrogen-induced cracking susceptibility of high strength steels. The constant displacement bolt-loaded specimen has been used to determine the hydrogen crack growth rates and threshold stress intensity of AF1410 - both conventionally and isothermally heat treated - and AerMet 100. Additionally, the severe susceptibility of high strength steels has necessitated the application and modification of a low cost, highly reliable, in situ crack measurement method, called the instrumented bolt. The instrumented bolt consists of a full bridge, strain-gaged stainless steel bolt coupled to an automatic data acquisition system. New expressions have been developed for use with the instrumented bolt and bolt-loaded specimen to relate load to crack growth. Our study determined that Stage II crack growth rates for the AF1410 were 1.1E (exp -2) and 2.3E(exp -2) mm/s for conventional and isothermal AF1410, respectively. Threshold stress intensity levels for AF1410 were 16.0 and 13.7 MPa m(exp 1/2), respectively. Stage II crack growth rates for AerMet 100 were 2.4E(exp -2) mm/s, while the threshold stress intensity was 14.1 MPa m(exp 1/2).

LaQue's Handbook of Marine Corrosion

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Publisher : John Wiley & Sons
ISBN 13 : 1119788838
Total Pages : 756 pages
Book Rating : 4.1/5 (197 download)

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Book Synopsis LaQue's Handbook of Marine Corrosion by : David A. Shifler

Download or read book LaQue's Handbook of Marine Corrosion written by David A. Shifler and published by John Wiley & Sons. This book was released on 2022-07-13 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of LaQue's classic text on marine corrosion, providing fully updated control engineering practices and applications Extensively updated throughout, the second edition of La Que's Handbook of Marine Corrosion remains the standard single-source reference on the unique nature of seawater as a corrosive environment. Designed to help readers reduce operational and life cycle costs for materials in marine environments, this authoritative resource provides clear guidance on design, materials selection, and implementation of corrosion control engineering practices for materials in atmospheric, immersion, or wetted marine environments. Completely rewritten for the 21st century, this new edition reflects current environmental regulations, best practices, materials, and processes, with special emphasis placed on the engineering, behavior, and practical applications of materials. Divided into three parts, the book first explains the fundamentals of corrosion in marine environments, including atmospheric corrosion, erosion, microbiological corrosion, fatigue, environmental cracking, and cathodic delamination. The second part discusses corrosion control methods and materials selection that can mitigate or eliminate corrosion in different marine environments. The third section provides the reader with specific applications of corrosion engineering to structures, systems, or components that exist in marine environments. This much-needed new edition: Presents a comprehensive and up-to-date account of the science and engineering aspects of marine corrosion Focuses on engineering aspects, descriptive behavior, and practical applications of materials usage in marine environments Addresses the various materials used in marine environments, including metals, polymers, alloys, coatings, and composites Incorporates current regulations, standards, and recommended practices of numerous organizations such as ASTM International, the US Navy, the American Bureau of Shipping, the International Organization for Standardization, and the International Maritime Organization Written in a clear and understandable style, La Que's Handbook of Marine Corrosion, Second Edition is an indispensable resource for engineers and materials scientists in disciplines spanning the naval, maritime, commercial, shipping industries, particularly corrosion engineers, ship designers, naval architects, marine engineers, oceanographers, and other professionals involved with products that operate in marine environments.

Hydrogen-induced, Delayed, Brittle Failures of High-strength Steels

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Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Hydrogen-induced, Delayed, Brittle Failures of High-strength Steels by : A. R. Elsea

Download or read book Hydrogen-induced, Delayed, Brittle Failures of High-strength Steels written by A. R. Elsea and published by . This book was released on 1964 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Risk Based Technologies

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Publisher : Springer
ISBN 13 : 981135796X
Total Pages : 314 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis Risk Based Technologies by : Prabhakar V. Varde

Download or read book Risk Based Technologies written by Prabhakar V. Varde and published by Springer. This book was released on 2018-12-10 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected topics in implementing a risk-based approach for complex engineering systems in general, and nuclear plants in particular. It addresses gap areas in implementing the risk-based approach to design, operation and regulation, covering materials reliability, digital system reliability, software reliability, human factor considerations, condition monitoring and prognosis, structural aspects in risk-based design as well as the application aspects like asset management for first-of-their-kind projects, strategic management and other academic aspect. Chapters are authored by renowned experts who address some of the identified challenges in implementation of risk-based approach in a clear and cogent manner, using illustrations, tables and photographs for ease of communication. This book will prove useful to researchers, professionals, and students alike.

Hydrogen Management in Steel Weldments

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Publisher : Organising Committee of Joint Seminar
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Hydrogen Management in Steel Weldments by : J. L. Davidson

Download or read book Hydrogen Management in Steel Weldments written by J. L. Davidson and published by Organising Committee of Joint Seminar. This book was released on 1997 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Preliminary Investigations of Effect of Hydrogen on Stress-rupture and Fatigue Properties of an Iron-, a Nickel-, and a Cobalt-base Alloy

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ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Preliminary Investigations of Effect of Hydrogen on Stress-rupture and Fatigue Properties of an Iron-, a Nickel-, and a Cobalt-base Alloy by : Stanley J. Klima

Download or read book Preliminary Investigations of Effect of Hydrogen on Stress-rupture and Fatigue Properties of an Iron-, a Nickel-, and a Cobalt-base Alloy written by Stanley J. Klima and published by . This book was released on 1962 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Aerospace Abstracts

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ISBN 13 :
Total Pages : 980 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Stress-corrosion Cracking and Hydrogen-stress Cracking of High-strength Steel

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ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Stress-corrosion Cracking and Hydrogen-stress Cracking of High-strength Steel by : Ellis E. Fletcher

Download or read book Stress-corrosion Cracking and Hydrogen-stress Cracking of High-strength Steel written by Ellis E. Fletcher and published by . This book was released on 1966 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-strength steels are susceptible to delayed cracking under suitable conditions. Frequently such a brittle failure occurs at a stress that is only a fraction of the nominal yield strength. Considerable controversy exists over whether such failures result from two separate and distinct phenomena or whether there is but one mechanism called by two different names. Stress-corrosion cracking is the process in which a crack propagates, at least partially, by the stress induced corrosion of a susceptible metal at the advancing tip of the stress-corrosion crack. There is considerable evidence that this cracking results from the electrtrochemical corrosion of a metal subjected to tensile stresses, either residual or externally applied. Hydrogen-stress cracking is cracking which occurs as the result of hydrogen in the metal lattice in combination with tensile stresses. Hydrogen-stress cracking cannot occur if hydrogen is prevented from entering the steel, or if hydrogen that has entered during processing or service is removed before permanent damage has occurred. It is generally agreed that corrosion plays no part in the actual fracture mechanism. This report was prepared to point out wherein the two fracture mechanisms under consideration are similar and wherein they differ. From the evidence available today, the present authors have concluded that there are two distinct mechansims of delayed failure. (Author).

Stress-corrosion Cracking in High Strength Steels and in Titanium and Aluminum Alloys

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ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Stress-corrosion Cracking in High Strength Steels and in Titanium and Aluminum Alloys by : Benjamin Floyd Brown

Download or read book Stress-corrosion Cracking in High Strength Steels and in Titanium and Aluminum Alloys written by Benjamin Floyd Brown and published by . This book was released on 1972 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chemical Abstracts

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ISBN 13 :
Total Pages : 2566 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Chemical Abstracts by :

Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2566 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Environmental and Metallurgical Factors of Stress-corrosion Cracking in High-strength Steels

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ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Environmental and Metallurgical Factors of Stress-corrosion Cracking in High-strength Steels by : C. J. Slunder

Download or read book Environmental and Metallurgical Factors of Stress-corrosion Cracking in High-strength Steels written by C. J. Slunder and published by . This book was released on 1961 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: