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Author : Joshua John Horn
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (399 download)
Download or read book Fatigue Crack Growth and Fracture Toughness of Three Powder Metal Steels written by Joshua John Horn and published by . This book was released on 1996 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G. L. Hanna
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.3/5 (91 download)
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.
Author : Ping Kun Hsueh
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (141 download)
Download or read book Fatigue Crack Growth Rates and Fracture Toughness of High Hardness and High Strength Steels written by Ping Kun Hsueh and published by . This book was released on 1986 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (317 download)
Download or read book A Compendium of Sources of Fracture Toughness and Fatigue Crack Growth Data for Metallic Alloys, Part 3 written by and published by . This book was released on 1988 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chandra Prakash Saxena
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (38 download)
Download or read book Fracture Toughness and Fatigue Crack-growth of Hadfield Steel written by Chandra Prakash Saxena and published by . This book was released on 1972 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas Charles Babcock
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.E/5 ( download)
Download or read book Fatigue-environmental Crack Propagation in a High Strength Steel written by Thomas Charles Babcock and published by . This book was released on 1969 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Darrell Socie
Publisher : SAE International
ISBN 13 : 0768065100
Total Pages : 510 pages
Book Rating : 4.7/5 (68 download)
Download or read book Multiaxial Fatigue written by Darrell Socie and published by SAE International. This book was released on 1999-12-15 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides practicing engineers, researchers, and students with a working knowledge of the fatigue design process and models under multiaxial states of stress and strain. Readers are introduced to the important considerations of multiaxial fatigue that differentiate it from uniaxial fatigue.
Author : Paul C. Paris
Publisher : ASTM International
ISBN 13 :
Total Pages : 320 pages
Book Rating : 4./5 ( download)
Download or read book Fracture Toughness and Slow - Stable Cracking written by Paul C. Paris and published by ASTM International. This book was released on 1974 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 584 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : WG. Clark
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (125 download)
Download or read book Effect of Spherical Discontinuities on Fatigue Crack Growth Rate Performance written by WG. Clark and published by . This book was released on 1979 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Room temperature, air environment fatigue crack growth rate data were generated with 2.540 cm (1 in.) thick hot-isostatically pressed and heat-treated low carbon steel powder metal toughness specimens containing artificial defects (alumina ceramic spheres) ranging from 0.317 to 1.270 cm (0.125 in. to 0.500 in.) in diameter. The procedure used to fabricate the test material and the subsequent evaluation of the effect of the defects on the localized rate of crack growth are discussed. Results show that the effect of unbonded spherical defects on fatigue crack growth rate behavior depends upon both the effect of the defect on localized net section stresses and the crack "blunting" influence of the defect. In addition, the specific influence of the defect on the rate of crack growth depends upon the applied stress intensity level. It is also shown that relatively large isolated spherical defects are required to yield a significant effect on fatigue crack growth rate performance. A preliminary evaluation of the effect of multiple defects is also included. Recommendations for further work and additional uses for powder metal materials containing controlled artificial defects are discussed.
Author : Metallurgical Society of AIME.
Publisher :
ISBN 13 :
Total Pages : 430 pages
Book Rating : 4.:/5 (89 download)
Download or read book Applications of Fracture Toughness Parameters to Structural Metals written by Metallurgical Society of AIME. and published by . This book was released on 1966 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. J. C. Hoo
Publisher : ASTM International
ISBN 13 : 0803118503
Total Pages : 312 pages
Book Rating : 4.8/5 (31 download)
Download or read book Creative Use of Bearing Steels written by J. J. C. Hoo and published by ASTM International. This book was released on 1993 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solicited papers from a November 1991 ASTM symposium on [title] held in San Diego, CA are grouped into seven sections: heat treatment carburizing and through-hardening; surface modification; powder metallurgy; corrosion resistant bearing steels; new bearing steels; improvement of rolling contact fat
Author : Che-Yu Li
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (125 download)
Download or read book Fatigue-Crack Propagation in Some Ultrahigh-Strength Steels written by Che-Yu Li and published by . This book was released on 1967 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue-crack propagation studies were carried out on some ultrahigh-strength steels in controlled environments using the fracture-mechanics approach. The steels investigated include a medium-carbon low-alloy ultrahigh-strength steel tempered to two strength and toughness levels, a 250-grade 18Ni maraging steel, and a 300-grade 18Ni steel. The results indicate that, in the inert environment, the rates of fatigue-crack propagation in these steels are about the same and show no obvious correlation with other mechanical properties of the steels. The sensitivity of the rates of fatigue-crack propagation to the presence of moisture in the test environment shows rough correlation with plane-strain fracture toughness for steels of similar composition. The role of water vapor in promoting fatigue-crack propagation is considered. The results are also discussed in terms of existing theories and metallographic observations.
Author : Albert A. Anctil
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (227 download)
Download or read book Fatigue-crack Propagation in Armor Steels written by Albert A. Anctil and published by . This book was released on 1969 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue-crack propagation in high- and dual-hardness armor steels was studied at various fatiguing stresses and testing temperatures using a fracture mechanics analysis of the data. The armor steels tested were: (1) a high-hardness XAR-30 steel; (2) an ausformed cross-rolled H11 and X27 steel composite; and (3) a dual-hardness composite of Ni-Cr-Mo steels with 0.34 and 0.51 carbon. Crack-growth rates increased directly with increasing fatiguing stress level and decreasing testing temperatures. The fatigue-crack growth rate d2a/dN versus the change in stress intensity factor delta K followed an empirical relationship d2a/dN = C delta K to the m power for the high-hardness and thin-section dual-hardness Ni-Cr-Mo composite steels. The crack-growth rate exponent m was 5.0 in the XAR-30 and 2.3 in the Ni-Cr-Mo steel. Crack-growth rates were generally higher in both the XAR-30 and Ni-Cr-Mo dual-hardness steels than in 4340 steel at the same strength level. The fracture mode for these steels was predominantly plane strain. The low fracture toughness component of the composite steel failed first and thereby caused rapid fatigue-crack growth acceleration and fast fracture in the remaining component. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.3/5 (243 download)
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 552 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1986 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert Scott Vecchio
Publisher :
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.:/5 (131 download)
Download or read book Application of Fracture Mechanics Principles to Fatigue Crack Growth in a Powder Metallurgy Ni-base Superalloy written by Robert Scott Vecchio and published by . This book was released on 1985 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
