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Influence Of Work Hardening Coefficient On Crack Propagation In High Strength Steels
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Book Synopsis Influence of Work Hardening Coefficient on Crack Propagation in High-strength Steels by : F. J. Lauta
Download or read book Influence of Work Hardening Coefficient on Crack Propagation in High-strength Steels written by F. J. Lauta and published by . This book was released on 1965 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ths influence of work hardening exponent on the fracture toughness of 4340, 18% nickel maraging, and AM-355 stainless steel was studied. In most cases the effects produced by variations in work hardening were difficult to analyze due to accompanying changes in yield strength and microstructure. In this investigation the transition in fracture mode induced by varying section size was used as a basic evaluation method since complicating effects due to yield strength changes were not introduced. The results indicated that the transition from flat to shear failures occurred in larger section sizes in the material with the lower work hardening exponent. Once full shear failures were obtained, however, materials with higher work hardening coefficients required greater energy to produce failure. The influence of work hardening on the transition behavior could be rationalized on the basis of the larger plastic zone present in the steel with the lower strain hardening coefficient. Although useful correlations between the strain hardening index and the fracture mode transition could be obtained no quantitative relationship between work hardening exponent, as defined by strain to maximum load, and plane strain fracture toughness was evident. (Author).
Book Synopsis Influence of Work Hardening Exponent on Crack Propagation in High-strength Materials by : G. L. Hanna
Download or read book Influence of Work Hardening Exponent on Crack Propagation in High-strength Materials written by G. L. Hanna and published by . This book was released on 1966 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of work hardening exponent on the variation of fracture toughness with material thickness was studied for high strength steel, aluminum, and titanium alloys. A variety of materials could be compared by employing normalizing parameters to represent the toughness in terms of the relative plastic zone size and representing the relationship on a logarithmic plot. Using this method the normalized fracture toughness parameter in the region of 100% slant fracture was proportional to the square of the work hardening exponent for the body-centered cubic metals. In the fracture mode transition region, however low work hardening was beneficial and the thickness at which the transition occurred decreased as the work hardening exponent increased. The influence of work hardening exponent on cyclically-induced crack growth rates in AISI 4340 steel and 13V-11Cr-3A1 titanium was also evaluated. In the steel the growth rate was slightly less for the material with the lower work hardening exponent while the titanium exhibited so significant trend as a function of work hardening characteristics. The specimen thickness had the greatest effect on the cyclically-induced crack growth with decreased growth rates present in the thicker specimens. Attempts were also made to control the process zone size by adding zirconia particles to a high strength steel matrix through powder metallurgy techniques.
Book Synopsis A Review of the Air Force Materials Research and Development Program by :
Download or read book A Review of the Air Force Materials Research and Development Program written by and published by . This book was released on 1966 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical reports published by the Air Force Materials Laboratory during the period 1 July 1964 - 30 June 1965 are abstracted herein. Reports on research conducted by the Air Force Materials Laboratory personnel as well as that conducted on contract are included.
Book Synopsis The Influence of Crack Length and Thickness in Plane Strain Fracture Toughness Tests by : Melvin H. Jones
Download or read book The Influence of Crack Length and Thickness in Plane Strain Fracture Toughness Tests written by Melvin H. Jones and published by . This book was released on 1969 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Environment on Fatigue Crack Propagation in 4340 Steel by : Roger Charles Rowlands
Download or read book The Effect of Environment on Fatigue Crack Propagation in 4340 Steel written by Roger Charles Rowlands and published by . This book was released on 1972 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1969 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fracture Toughness Evaluation by R-curve Methods by : D. E. McCabe
Download or read book Fracture Toughness Evaluation by R-curve Methods written by D. E. McCabe and published by ASTM International. This book was released on 1973 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fracture Toughness Evaluation by R-curve Methods by :
Download or read book Fracture Toughness Evaluation by R-curve Methods written by and published by ASTM International. This book was released on 1973 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abstracts of Active Contracts by : Air Force Materials Laboratory (U.S.).
Download or read book Abstracts of Active Contracts written by Air Force Materials Laboratory (U.S.). and published by . This book was released on 1968 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Advanced High Strength Steels by : Mohamed Goune
Download or read book New Advanced High Strength Steels written by Mohamed Goune and published by John Wiley & Sons. This book was released on 2024-01-11 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, significant developments have been made to increase the mechanical strength of steels in order to reduce the overall weight of structures, particularly in motor vehicles. Depending on the application, the increase in strength should not be at the expense of forming and in-use properties. The development of ultra-high strength steels requires a search for new trade-offs between these properties in order to optimize the final microstructure. New Advanced High Strength Steels analyzes the interactions between tensile mechanical properties and properties such as work hardening, anisotropy, resistance to rupture, fatigue life, corrosion resistance, crashworthiness, edge retention, hydrogen resistance and weldability. It also examines the links between the microstructural parameters of high-strength steels and the properties mentioned above. It highlights the metallurgical developments that have been necessary for the emergence of these new generations of steels. The book concludes with a look ahead to future developments in ultra-high strength steels
Book Synopsis Review of Developments in Plane Strain Fracture Toughness Testing by :
Download or read book Review of Developments in Plane Strain Fracture Toughness Testing written by and published by ASTM International. This book was released on 2011 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis IIW Recommendations On Methods for Improving the Fatigue Strength of Welded Joints by : P J Haagensen
Download or read book IIW Recommendations On Methods for Improving the Fatigue Strength of Welded Joints written by P J Haagensen and published by Woodhead Publishing. This book was released on 2013-01-25 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The weld toe is a primary source of fatigue cracking because of the severity of the stress concentration it produces. Weld toe improvement can increase the fatigue strength of new structures significantly. It can also be used to repair or upgrade existing structures. However, in practice there have been wide variations in the actual improvements in fatigue strength achieved. Based on an extensive testing programme organised by the IIW, this report reviews the main methods for weld toe improvement to increase fatigue strength: burr grinding, TIG dressing and hammer and needle peening. The report provides specifications for the practical use of each method, including equipment, weld preparation and operation. It also offers guidance on inspection, quality control and training as well as assessments of fatigue strength and thickness effects possible with each technique. IIW recommendations on methods for improving the fatigue strength of welded joints will allow a more consistent use of these methods and more predictable increases in fatigue strength. Provides specifications for the practical use of each weld toe method, including equipment, weld preparation and operation Offers guidance on inspection, quality control and training, as well as assessments of fatigue strength and thickness effects possible with each technique This report will allow a more consistent use of these methods and more predictable increases in fatigue strength
Book Synopsis Advanced High Strength Steel And Press Hardening - Proceedings Of The 2nd International Conference (Ichsu2015) by : Yisheng Zhang
Download or read book Advanced High Strength Steel And Press Hardening - Proceedings Of The 2nd International Conference (Ichsu2015) written by Yisheng Zhang and published by World Scientific. This book was released on 2016-03-11 with total page 753 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings brings together one hundred and ten selected papers presented at the 2nd International Conference on Advanced High Strength Steel and Press Hardening (ICHSU2015), which was held in Changsha, China, during October 15-18, 2015.To satisfy the increasingly urgent requirement of reducing the weight of vehicle structures and increasing passenger safety, ICHSU2015 provided an excellent international platform for researchers to share their knowledge and results in theory, methodology and applications of advanced high strength steel and press hardening technology.This conference aroused great interests and attentions from domestic and foreign researchers in hot stamping field. Experts in this field from Australia, China, Germany and Sweden, contributed to the collection of research results and developments. The papers cover almost all the current topics of advanced high strength steel and press hardening technology.
Book Synopsis Transactions of the Metallurgical Society of AIME. by : Metallurgical Society of AIME.
Download or read book Transactions of the Metallurgical Society of AIME. written by Metallurgical Society of AIME. and published by . This book was released on 1968 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Load Interaction Effects on Fatigue Crack Propagation in High Strength Steels by : Dan K. Holm
Download or read book Load Interaction Effects on Fatigue Crack Propagation in High Strength Steels written by Dan K. Holm and published by . This book was released on 1985 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
