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strain-induced transformation

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Published: 01 January 2006
Fig. 3 Instantaneous n -values versus strain for transformation-induced plasticity (TRIP), dual phase (DP), and high-strength low-alloy (HSLA) steels. Source: Ref 5 More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003995
EISBN: 978-1-62708-185-6
.... The article describes the metallurgical processes in grain refinement of austenite steel by hot working, such as recovery and recrystallization and strain-induced transformation. The grain refinement in high strength low alloy steel by alloy addition is also discussed. The article provides an outline...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003195
EISBN: 978-1-62708-199-3
... heat-treating defects and how they can be controlled. It also presents an example to demonstrate how thermal and transformation-induced strains cause dimensional changes and residual stresses. continuous cooling transformation diagrams continuous heating transformation diagrams creep...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003136
EISBN: 978-1-62708-199-3
... of the transformation of elastic strain in the material to plastic, or permanent strain. copper copper alloys stress-relaxation structural applications thermal softening COPPER AND COPPER ALLOYS are used extensively in structural applications in which they are subject to moderately elevated temperatures...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005800
EISBN: 978-1-62708-165-8
... on longitudinal specimens at six different temperatures are illustrated in Fig. 11 . The specimens showed continuous yielding behavior, which can be interpreted as the result of the high density of dislocations introduced by martensite. The M s σ temperature for strain-induced transformation can...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006339
EISBN: 978-1-62708-179-5
... of the relative abrasion resistance (RAR) of ADI with those of different abrasion-resistant steels. High RAR values indicate higher abrasion resistance. The superior abrasion resistance and the low sensitivity of abrasion resistance to bulk hardness are related to the strain-induced transformation...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002489
EISBN: 978-1-62708-194-8
... heat treat defects. A simple example is presented to demonstrate how thermal and phase-transformation-induced strains cause dimensional changes and residual stresses. The article concludes with a discussion on the heat treatment process modeling technology. distortion heat treatment heat...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002354
EISBN: 978-1-62708-193-1
... phenomenological and general description of the cyclic stress-strain response. Then, the microstructural aspects of cyclic deformation are described, taking into account the role of the dislocation slip character and the type of crystal lattice. Examples illustrate the effect of deformation-induced phase...
Image
Published: 30 September 2014
) Thermal strain (5) Temperature-dependent mechanical properties (6) Heat induced by deformation (7) Transformation strains (dilatational strains and transformation plasticity) (8) Microstructure-dependent mechanical properties (9) Stress/plastic strain induced/affected transformation More
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005658
EISBN: 978-1-62708-198-6
... of transformation, ε t is the transformation strain, and T o is the transformation temperature. Values for d σ/ dT , often called the stress rate, range from 4 to 15 MPa/°C, but for superelastic alloys commonly used in medical devices, that range is reliably 5 to 6 MPa/°C. As shown subsequently, this turns out...
Image
Published: 01 January 2000
Fig. 9 Stress-strain response obtained using a ramp-shaped pulse in a modified split-Hopkinson pressure bar test for zirconia ceramic exhibiting inelastic strains associated with stress-induced transformation and microcracking. Source: Ref 9 , 10 More
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002400
EISBN: 978-1-62708-193-1
... of a plastic zone smaller than the grain size at the tip of the sharp intergranular cracks, and the fact that strain-induced transformation of retained austenite in the plastic zone ahead of the crack introduces compressive stresses ( Ref 38 , 39 ). The fatigue crack then propagates in a transgranular mode...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001100
EISBN: 978-1-62708-162-7
... of the stress-strain behavior is seen in Fig. 3(c) , where the material is tested slightly above its transformation temperature. At this temperature, martensite can be stress induced. It then immediately strains and exhibits the increasing strain at constant stress behavior, seen in AB. Upon unloading, though...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001342
EISBN: 978-1-62708-173-3
... or in transformations that result in ordered structures), the likelihood of cracks forming at susceptible sites, such as grain boundaries, matrix/minor phase interfaces, and slip band intersections, is increased. Reheat cracking, also referred to as stress-relief of strain-age cracking, is another defect type...
Book Chapter

Series: ASM Handbook
Volume: 9
Publisher: ASM International