J. W. Qiu
Central South University
8 Papers
39 Citations
J. W. Qiu is an academic researcher from Central South University. The author has contributed to research in topics: Titanium alloy & Constitutive equation. The author has an hindex of 2, co-authored 2 publications.
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Papers
Microstructures and mechanical properties of titanium alloy connecting rod made by powder forging process
TL;DR: In this paper, a powder metallurgy (P/M) titanium alloy connecting rod with the composition of Ti 1.5Fe 2.25Mo (wt.%), formed by a powder forging process, was successfully developed with the help of a pre-processing simulation using a commercial finite element software (DEFORM-3D).
40
Optimizing the hot-forging process parameters for connecting rods made of PM titanium alloy
TL;DR: In this paper, the deformation behavior of an α+β type Ti-1.5Fe-2.25Mo (wt%) alloy produced by elemental powder metallurgy (PM) route was studied using isothermal compression tests.
23
A Strain Rate‐Dependent Constitutive Model for Asymmetric Hardening Behavior of TB9 Titanium Alloy
TL;DR: In this paper , a pressure-dependent elastoplastic asymmetric constitutive model was proposed to describe the deformation behavior of TB9 titanium alloys and an idea of yield surface plotted in the deviatoric stress space was presented for the decoupling of coupling effect of hydrostatic pressure and lode angle.
6
Multiaxial yield behavior of 2D re-entrant auxetic cellular materials
Buyun Su,Zhiwei Zhou,J. W. Qiu,XiaoHu Yao,Zhiqiang Li,Zhihua Wang,Xuefeng Shu +6 more
TL;DR: This study numerically investigates the multiaxial yield behavior of 2D re-entrant auxetic cellular materials, revealing unique mechanical properties and proposing a pressure-dependent anisotropic yield criterion for auxetic materials with different topologies.
3
A constitutive model coupled with distortional hardening for pressure-insensitive metals: Focus on the Cantor alloy
J. W. Qiu,Weiling Cui,Tao Jin,Buyun Su,Dan Zhao,Xuefeng Shu,Huiqing Fang +6 more
TL;DR: A constitutive model is developed for pressure-insensitive metals, focusing on the Cantor alloy, incorporating distortional hardening and establishing a quantitative relationship between strength differential coefficient and effective plastic strain through experimental and numerical validation.