The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
W.g. Zhang - One of the best experts on this subject based on the ideXlab platform.
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The Effect of Strain-induced martensitic transformation on mechanical properties of TRIP steel
Materials & Design, 2007Co-Authors: Shuhui Li, W.g. ZhangAbstract:Abstract In this paper, the Effect of Strain-induced martensitic transformation on mechanical properties is studied based on a developed TI model coupled with mixed hardening law of four phases and anisotropic yield function. Compared with H220BD and DDQ, TRIP steel shows excellent mechanical properties. Stress–Strain curve and martensitic volume fraction during deformation process present the developed model is suitable to describe the deformation behaviors of TRIP steel. Single phase mechanical properties indicate high necking Strain of martensite results in the improvement of the formability of TRIP steel. Hardening rate and Strain hardening exponent with TRIP Effect illuminate the mechanical properties are improved by martensitic transformation. The gradient of mechanical parameters describes the influence of martensitic transformation on mechanical properties of TRIP steel further.
Shuhui Li - One of the best experts on this subject based on the ideXlab platform.
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The Effect of Strain-induced martensitic transformation on mechanical properties of TRIP steel
Materials & Design, 2007Co-Authors: Shuhui Li, W.g. ZhangAbstract:Abstract In this paper, the Effect of Strain-induced martensitic transformation on mechanical properties is studied based on a developed TI model coupled with mixed hardening law of four phases and anisotropic yield function. Compared with H220BD and DDQ, TRIP steel shows excellent mechanical properties. Stress–Strain curve and martensitic volume fraction during deformation process present the developed model is suitable to describe the deformation behaviors of TRIP steel. Single phase mechanical properties indicate high necking Strain of martensite results in the improvement of the formability of TRIP steel. Hardening rate and Strain hardening exponent with TRIP Effect illuminate the mechanical properties are improved by martensitic transformation. The gradient of mechanical parameters describes the influence of martensitic transformation on mechanical properties of TRIP steel further.
Satyam Suwas - One of the best experts on this subject based on the ideXlab platform.
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Effect of Strain path change on the evolution of texture and microstructure during rolling of copper and nickel
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2011Co-Authors: N P Gurao, S Sethuraman, Satyam SuwasAbstract:Abstract The Effect of Strain path change during rolling has been investigated for copper and nickel using X-ray diffraction and electron back scatter diffraction as well as crystal plasticity simulations. Four different Strain paths namely: (i) unidirectional rolling; (ii) reverse rolling; (iii) two-step cross rolling and (iv) multi-step cross rolling were employed to decipher the Effect of Strain path change on the evolution of deformation texture and microstructure. The cross rolled samples showed weaker texture with a prominent Bs {1 1 0}〈1 1 2〉 and P(B ND ) {1 1 0}〈1 1 1〉 component in contrast to the unidirectional and reverse rolled samples where strong S {1 2 3}〈6 3 4〉 and Cu {1 1 2}〈1 1 1〉 components were formed. This was more pronounced for copper samples compared to nickel. The cross rolled samples were characterized by lower anisotropy and Taylor factor as well as less variation in Lankford parameter. Viscoplastic self-consistent simulations indicated that slip activity on higher number of octahedral slip systems can explain the weaker texture as well as reduced anisotropy in the cross rolled samples.
W. B. Hutchinson - One of the best experts on this subject based on the ideXlab platform.
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Effect of Strain path change on recrystallisation in copper
Materials Science and Technology, 2005Co-Authors: D. T. Mcdonald, Pete S. Bate, W. B. HutchinsonAbstract:The Effect of different modes of deformation on the subsequent recrystallisation kinetics of copper has been studied. Combinations of uniaxial tension, uniaxial compression and plane Strain compression were used to give linear, reversed, and orthogonal Strain paths. The rate of recrystallisation, determined using hardness tests and isochronal annealing, did not correlate with any simple Strain measure. Correlation with final flow stress was moderate, and was slightly better with as deformed hardness. Deviations from such simple relationships were due partly to an overall Effect of Strain state, although the largest differences were associated with transient behaviour at small second stage deformations.
Licheng Guo - One of the best experts on this subject based on the ideXlab platform.
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Effect of Strain rate on the mechanical properties of carbon epoxy composites under quasi static and dynamic loadings
Polymer Testing, 2016Co-Authors: Ying Yan, Licheng GuoAbstract:Abstract Experimental investigations on warp-knitted and plain weave carbon fabric composites were made under quasi-static and dynamic Strain rates, which mainly focused on the Effect of Strain rate on the tensile and compressive strength of the composite. The Strain rate was 0.5 s−1 for quasi-static tests performed on a universal testing machine, whereas it ranged from approximately 200 s−1 to 2300 s−1 for the dynamic testing. The test results show that the tensile strength increased with increasing Strain rate for both types of fabrics, whereas the Effect of Strain rate was negligible for the compressive strength. Also, the failure mechanism was characterized by examining the fracture surfaces using optical and scanning electron microscopy (SEM).
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Effect of Strain rate on the mechanical properties of carbon/epoxy composites under quasi-static and dynamic loadings
Polymer Testing, 2016Co-Authors: Ying Yan, Licheng GuoAbstract:Abstract Experimental investigations on warp-knitted and plain weave carbon fabric composites were made under quasi-static and dynamic Strain rates, which mainly focused on the Effect of Strain rate on the tensile and compressive strength of the composite. The Strain rate was 0.5 s−1 for quasi-static tests performed on a universal testing machine, whereas it ranged from approximately 200 s−1 to 2300 s−1 for the dynamic testing. The test results show that the tensile strength increased with increasing Strain rate for both types of fabrics, whereas the Effect of Strain rate was negligible for the compressive strength. Also, the failure mechanism was characterized by examining the fracture surfaces using optical and scanning electron microscopy (SEM).