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Strain Aging And Delayed Failure In High Strength Steels
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Book Synopsis Strain Aging and Delayed Failure in High-strength Steels by : E. A. Steigerwald
Download or read book Strain Aging and Delayed Failure in High-strength Steels written by E. A. Steigerwald and published by . This book was released on 1962 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spontaneous strain aging which occurs during tensile testing was examined for several high-strength steels. The results of smooth and notch tensile tests indicated that significant strain aging effects occurred in most high-strength steels in the 300 F to 800 F temperature range and this behavior was analogous to "blue brittleness" in mild steels. Constant load, stress rupture tests were conducted on the steels to determine the possible relationship between strain-aging embrittlement and delayed failure. Only the 300 M steel tested at 400 F exhibited an appreciable degree of delayed failure. This embrittlement, was extremely sensitive to test environment and was elimiriated when tests were conducted in argon. Although strain aging was not a sufficient condition to initiate delayed failure, it appeared to increase the severity of the environmental effects in the particular range where sufficient interstitial mobility existed.
Book Synopsis High-strength Steels by : Ya. M. Potak
Download or read book High-strength Steels written by Ya. M. Potak and published by . This book was released on 1973 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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).
Book Synopsis Interstitial Induced Delayed Failure of Steel by : T. E. Scott
Download or read book Interstitial Induced Delayed Failure of Steel written by T. E. Scott and published by . This book was released on 1962 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Delayed Failure of High Strength Steels in Environmemts by : Yoshinori Saiga
Download or read book Delayed Failure of High Strength Steels in Environmemts written by Yoshinori Saiga and published by . This book was released on 1977 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Book Synopsis Solute Induced Embrittlement in Steel and Several Face-centered Cubic Alloys by : W. M. Cain
Download or read book Solute Induced Embrittlement in Steel and Several Face-centered Cubic Alloys written by W. M. Cain and published by . This book was released on 1964 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hydrogenated f.c.c. alloy, 66Ni-30Cu-3Al, was subject under the conditions examined to brittle delayed failure. The static fatigue curve together with discontinuous crack propagation was an almost perfect image of that observed in high strength steel. Fracture behavior in alpha brass was studied under conditions where strain-aging type phenomena are operative. Alpha brass, under the proper conditions, exhibited both spontaneous strain-aging embrittlement and embrittlement produced by separately straining and aging. The alpha brass also exhibited delayed failure which has all the main characteristics of interstitial induced brittle delayed failure. The phenomenon of delayed failure has been correlated with microstructure in two alloy steels at three moderate strength levels. Delayed failure may occur over a relatively significant range of applied stress at these strength levels. The sensitivity to delayed failure may persist even though conventional tensile results indicate full ductility. The observed reductions in ductility are a function of microstructure at given strength level. (Author).
Book Synopsis A Review of the Air Force Materials Research and Development Program by : United States. Wright Air Development Division
Download or read book A Review of the Air Force Materials Research and Development Program written by United States. Wright Air Development Division and published by . This book was released on 1954 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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).
Book Synopsis A Review of the Air Force Materials Research and Development Program by : Air Force Materials Laboratory (U.S.)
Download or read book A Review of the Air Force Materials Research and Development Program written by Air Force Materials Laboratory (U.S.) and published by . This book was released on 1964 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical reports published by the Air Force Materials Laboratoy during the period 1 July 1962 - 30 June 1963 are abstracted herein. Reports on reseqrch conducted by the Air Force Materials Laboratory personnel as well as that conducted on contract are included. These reports cover basic and applied research in the materials area being conducted by the Metals and Ceramics Division, Non-metallic Materials Division, Materials Physics Division, Manufacturing Technology Division, and Materials Applications Division of the Air Force Materials Laboratory.
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 1984 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Solute Induced Embrittlement in Steel and Several Face-centered Cubic Alloys by : W. M. Cain
Download or read book Solute Induced Embrittlement in Steel and Several Face-centered Cubic Alloys written by W. M. Cain and published by . This book was released on 1964 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hydrogenated f.c.c. alloy, 66Ni-30Cu-3Al, was subject under the conditions examined to brittle delayed failure. The static fatigue curve together with discontinuous crack propagation was an almost perfect image of that observed in high strength steel. Fracture behavior in alpha brass was studied under conditions where strain-aging type phenomena are operative. Alpha brass, under the proper conditions, exhibited both spontaneous strain-aging embrittlement and embrittlement produced by separately straining and aging. The alpha brass also exhibited delayed failure which has all the main characteristics of interstitial induced brittle delayed failure. The phenomenon of delayed failure has been correlated with microstructure in two alloy steels at three moderate strength levels. Delayed failure may occur over a relatively significant range of applied stress at these strength levels. The sensitivity to delayed failure may persist even though conventional tensile results indicate full ductility. The observed reductions in ductility are a function of microstructure at given strength level. (Author).
Book Synopsis U.S. Government Research Reports by :
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1964 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerospace Structural Metals Handbook by :
Download or read book Aerospace Structural Metals Handbook written by and published by . This book was released on 1989 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmentally Induced Delayed Failures in Martensitic High-strength Steels by : W. David Benjamin
Download or read book Environmentally Induced Delayed Failures in Martensitic High-strength Steels written by W. David Benjamin and published by . This book was released on 1968 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Factors Influencing the Fracture Characteristics of High-strength Steel by : Charles W. Marschall
Download or read book The Factors Influencing the Fracture Characteristics of High-strength Steel written by Charles W. Marschall and published by . This book was released on 1961 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Delayed Fracture in High Strength Steels by : Ronald Ian Blombery
Download or read book Delayed Fracture in High Strength Steels written by Ronald Ian Blombery and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
