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Bauschinger Effects And Work Hardening In Spheroidized Steels
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Book Synopsis Bauschinger Effects and Work-hardening in Spheroidized Steels by :
Download or read book Bauschinger Effects and Work-hardening in Spheroidized Steels written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of cementite particles and subgrain boundaries on work-hardening behavior of spheroidized carbon steels were investigated by making direct measurements of residual internal stresses. These internal stresses developed due to plastic incompatibilities between elastic particles and an elastic-plastic matrix. A continuum analysis of these internal stress fields, based upon a multiple slip model, is presented and is found to be in good accord with the experiments. The internal stresses appear to saturate in the plastic strain range of 3 approx. 5% where a transition in strain-hardening behavior was observed (''double-n'' behavior), and to contribute approximately 20% to total work-hardening. The cementite-particle-pinned-subgrain-boundaries, formed during a post-quench annealing treatment, were found to lower the internal stress, thus indicating that they assisted the relaxation processes of entrapped Orowan loops by acting as sources of dislocations. The flow stress increment in dispersion hardened alloys due to work-hardening consisted of internal stress, forest stress, and source-shortening stress. The flow stress curves of spheroidized carbon steels were found to be described by a modified mean-square-root addition law of the form: sigma/sub f/ = sigma/sub epsilon/sub p/=0/ = sigma/sup i/ ((.delta.sigma/sup s/)/sup 2/ + (.delta.sigma/sup ss/)/sup 2/ + (sigma/sup f/)/sup 2/)/sup 1///sup 2/. The maximum normal interfacial stresses were estimated from the data. The maximum values occurred in the tensile direction at the poles of particles and the magnitude was found to be approximately one half of flow stress. The significance of these stresses regarding interface cavitation is discussed briefly.
Book Synopsis Bauschinger Effects and Work-hardening in Spheroidized Steels by : Young Won Chang
Download or read book Bauschinger Effects and Work-hardening in Spheroidized Steels written by Young Won Chang and published by . This book was released on 1977 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Bauschinger Effect in a High Strength Steel by : Rex V. MILLIGAN
Download or read book The Bauschinger Effect in a High Strength Steel written by Rex V. MILLIGAN and published by . This book was released on 1965 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The object of this work was to quantitatively evaluate the Bauschinger Effect in a 4330 modified steel as a function of strength level and structure as derived from variations in heat treatment. Material having martensitic, pearlitic, and bainitic structures was studied utilizing a uniaxial tension-compression specimen. Various ways of defining the magnitude of the Bauschinger Effect are explained. One is a conventional approach as suggested by Welter, the other a technique which takes strain hardening into account. The results show the Bauschinger Effect to be independent of yield strength for three different strength levels of the martensitic material. It is only mildly influenced by material structure and indepenent of the direction of overstrain. The Bauschinger Effect increases with increasing permanent strain up to approximately 2% and thereafter remains essentially constant. (Author).
Book Synopsis Fracture and Damage of Composites by : M. H. Aliabadi
Download or read book Fracture and Damage of Composites written by M. H. Aliabadi and published by WIT Press. This book was released on 2006 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering various aspects of dynamic fractures this book contains state-of-the-art contributions from leading scientists in the field of crack dynamics.
Book Synopsis An Investigation of the Bauschinger Effect in Steel Stressed Beyond the Onset of Strain Hardening by : Ying-Ming Cheng
Download or read book An Investigation of the Bauschinger Effect in Steel Stressed Beyond the Onset of Strain Hardening written by Ying-Ming Cheng and published by . This book was released on 1965 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Work-hardening of dual-phase steel by : Rieger, Florian
Download or read book Work-hardening of dual-phase steel written by Rieger, Florian and published by KIT Scientific Publishing. This book was released on 2016-07-01 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dual-phase steels exhibit good mechanical properties due to a microstructure of strong martensitic inclusions embedded in a ductile ferritic matrix. This work presents a two-scale model for the underlying work-hardening effects; such as the distinctly different hardening rates observed for high-strength dual-phase steels. The model is based on geometrically necessary dislocations and comprises the average microstructural morphology as well as a direct interaction between the constituents.
Book Synopsis Characterization of Steels Using a Revised Kinematic Hardening Model Incorporating Bauschinger Effect by :
Download or read book Characterization of Steels Using a Revised Kinematic Hardening Model Incorporating Bauschinger Effect written by and published by . This book was released on 2002 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new variant of the nonlinear kinematic hardening model is proposed that accommodates both nonlinear and linear strain hardening during initial tensile loading and reduced elastic modulus during initial load reversal. It also incorporates the Bauschinger effect, as a function of prior tensile plastic strain, during the nonlinear compressive loading phase. The model is shown to fit experimental data from a total of five candidate gun steels. The numerical fits will be employed in subsequent work to predict residual stresses and fatigue lifetimes for autofrettaged tubes manufactured from the candidate steels.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1977 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Bauschinger Effect and Cyclic Plasticity in Spheroidized Steels by : Curt Allan Bronkhorst
Download or read book A Study of the Bauschinger Effect and Cyclic Plasticity in Spheroidized Steels written by Curt Allan Bronkhorst and published by . This book was released on 1988 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1974 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1983 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ductile Fracture in Metal Forming by : Kazutake Komori
Download or read book Ductile Fracture in Metal Forming written by Kazutake Komori and published by Academic Press. This book was released on 2019-10-11 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ductile Fracture in Metal Forming: Modeling and Simulation examines the current understanding of the mechanics and physics of ductile fracture in metal forming processes while also providing an approach to micromechanical ductile fracture prediction that can be applied to all metal forming processes. Starting with an overview of different ductile fracture scenarios, the book then goes on to explain modeling techniques that predict a range of mechanical phenomena that can lead to ductile fracture. The challenges in creating micromechanical models are addressed alongside methods of applying these models to several common metal forming processes. This book is suitable for researchers working in mechanics of materials, metal forming, mechanical metallurgy, and plasticity. Engineers in R&D industries involved in metal forming such as manufacturing, aerospace, and automation will also find the book very useful. Explains innovative micromechanical modeling techniques for a variety of material behaviors Examines how these models can be applied to metal forming processes in practice, including blanking, arrowed cracks in drawing, and surface cracks in upset forging Provides a thorough examination of both macroscopic and microscopic ductile fracture theory
Book Synopsis The Case-hardening of Steel by : Harry Brearley
Download or read book The Case-hardening of Steel written by Harry Brearley and published by . This book was released on 1921 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Effects of Cold Working by Hydrostatic Extrusion on Mechanical Properties of High-strength Steels by : Charles P. Blankenship
Download or read book Some Effects of Cold Working by Hydrostatic Extrusion on Mechanical Properties of High-strength Steels written by Charles P. Blankenship and published by . This book was released on 1971 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Work-hardening of Dual-phase Steel by : Florian Rieger
Download or read book Work-hardening of Dual-phase Steel written by Florian Rieger and published by . This book was released on 2020-10-09 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dual-phase steels exhibit good mechanical properties due to a microstructure of strong martensitic inclusions embedded in a ductile ferritic matrix. This work presents a two-scale model for the underlying work-hardening effects; such as the distinctly different hardening rates observed for high-strength dual-phase steels. The model is based on geometrically necessary dislocations and comprises the average microstructural morphology as well as a direct interaction between the constituents. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
Download or read book Paper written by and published by . This book was released on 1987 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microstructural and Strain Rate Effects on Stage III Strain Hardening and Ductility in Dual Phase Steels by : Michael S. Nagorka
Download or read book Microstructural and Strain Rate Effects on Stage III Strain Hardening and Ductility in Dual Phase Steels written by Michael S. Nagorka and published by . This book was released on 1986 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
