The Effect of Strain Rate on Yielding in High-strength Steels PDF Download
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Author: David P. Kendall
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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Book Description
The effect of strain rates ranging from 0.0001 to 10 in/in/sec. on the yield strengths of several high strength alloy steels is investigated. Quenched and tempered type alloys exhibit two regions of strain rate sensitivity with the strain rate dividing the sensitive and insensitive regions varying from 0.5 to greater than 10 in/in/sec, depending on composition, microstructure and grain size. At the higher rates a power law relationship is found which is consistent with a yielding model involving breakaway of dislocations from solute atmospheres. Maraging steel exhibits a continuous power law strain rate sensitivity over the entire range. (Author).
Author: David P. Kendall
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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Book Description
The effect of strain rates ranging from 0.0001 to 10 in/in/sec. on the yield strengths of several high strength alloy steels is investigated. Quenched and tempered type alloys exhibit two regions of strain rate sensitivity with the strain rate dividing the sensitive and insensitive regions varying from 0.5 to greater than 10 in/in/sec, depending on composition, microstructure and grain size. At the higher rates a power law relationship is found which is consistent with a yielding model involving breakaway of dislocations from solute atmospheres. Maraging steel exhibits a continuous power law strain rate sensitivity over the entire range. (Author).
Author: D. P. Moon
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 38
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Book Description
Author: David P. Kendall
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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Book Description
The effect of elastic strain rates ranging from 0.001 to 10/sec and temperatures ranging from 200K ( -100F) to 590K (600F) on the yield strength of several steels is reported. The steels utilized are a 1018 mild steel, 4340 steel, H-11 tool steel and 300 grade maraging steel. The results are interpreted in terms of the Cottrel-Bilby yielding model based on release of dislocations from locking carbon atmospheres. The results for all of the materials except the maraging steel are consistent with this model if it is modified to account for re-locking of dislocations by migration of carbon atoms. The maraging steel shows a constant strain rate sensitivity at a constant temperature, over the range of strain rates investigated. This rate sensitivity decreases with increasing temperature and at 590K (600 F) a decreasing strength with increasing strain rate is found. This is attributed to stress aging effects. (Author).
Author: B. A. Burgan
Publisher:
ISBN: 9780717620234
Category : Steel, High strength
Languages : en
Pages : 149
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Book Description
Author: Percy Williams Bridgman
Publisher: Cambridge : Harvard University Press
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 384
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Book Description
Author: Alan Thompson
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Mahmoud Y. Demeri
Publisher: ASM International
ISBN: 1627080058
Category : Business & Economics
Languages : en
Pages : 312
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Book Description
Examines the types, microstructures and attributes of AHSSAlso reviews the current and future applications, the benefits, trends and environmental and sustainability issues.
Author: Flake C. Campbell
Publisher: ASM International
ISBN: 1615030581
Category : Technology & Engineering
Languages : en
Pages : 671
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Book Description
This practical reference provides thorough and systematic coverage on both basic metallurgy and the practical engineering aspects of metallic material selection and application.
Author: Ladislav Ševĉik
Publisher: Springer Science & Business Media
ISBN: 3319052039
Category : Technology & Engineering
Languages : en
Pages : 605
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Book Description
This book has been created on the basis of contributions to the 54th International Conference of Machine Design Departments that was held for the 60th anniversary of Technical University of Liberec. This international conference which follows a tradition going back more than 50 years is one of the longest-running series of conferences held in central Europe, dealing with methods and applications in machine design. The main aim of the conference was to provide an international forum where experts, researchers, engineers and industrial practitioners, managers and Ph.D. students could meet, share their experiences and present the results of their efforts in the broad field of machine design and related fields. The book has seven chapters which focus on new knowledge of machine design, optimization, tribology, experimental methods and measuring, engineering analyses and product innovation. Authors presented new design methods of machine parts and more complex assemblies with the help of numerical methods such as FEM. Research, measurements and studies of new materials, including composites for energy-efficient constructions are also described. The book also includes solutions and results useful for optimization and innovation of complex design problems in various industries.
Author: Mikko Hokka
Publisher:
ISBN: 9789521520242
Category :
Languages : en
Pages : 70
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Book Description
