TY - JOUR
T1 - A Correction to the Stress–Strain Curve During Multistage Hot Deformation of 7150 Aluminum Alloy Using Instantaneous Friction Factors
AU - Jiang, Fulin
AU - Tang, Jie
AU - Fu, Dinfa
AU - Huang, Jianping
AU - Zhang, Hui
N1 - Funding Information:
This work is supported by the National Natural Science Foundation of China (51674111) and the Doctoral Program of the Ministry of Education (20130161110007) and the Chinese Scholarship Council and Hunan Provincial Innovation Foundation for Postgraduate (CX2013B128).
Publisher Copyright:
© 2018, ASM International.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - Multistage stress–strain curve correction based on an instantaneous friction factor was studied for axisymmetric uniaxial hot compression of 7150 aluminum alloy. Experimental friction factors were calculated based on continuous isothermal axisymmetric uniaxial compression tests at various deformation parameters. Then, an instantaneous friction factor equation was fitted by mathematic analysis. After verification by comparing single-pass flow stress correction with traditional average friction factor correction, the instantaneous friction factor equation was applied to correct multistage stress–strain curves. The corrected results were reasonable and validated by multistage relative softening calculations. This research provides a broad potential for implementing axisymmetric uniaxial compression in multistage physical simulations and friction optimization in finite element analysis.
AB - Multistage stress–strain curve correction based on an instantaneous friction factor was studied for axisymmetric uniaxial hot compression of 7150 aluminum alloy. Experimental friction factors were calculated based on continuous isothermal axisymmetric uniaxial compression tests at various deformation parameters. Then, an instantaneous friction factor equation was fitted by mathematic analysis. After verification by comparing single-pass flow stress correction with traditional average friction factor correction, the instantaneous friction factor equation was applied to correct multistage stress–strain curves. The corrected results were reasonable and validated by multistage relative softening calculations. This research provides a broad potential for implementing axisymmetric uniaxial compression in multistage physical simulations and friction optimization in finite element analysis.
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U2 - 10.1007/s11665-018-3375-x
DO - 10.1007/s11665-018-3375-x
M3 - Article
AN - SCOPUS:85046021784
SN - 1059-9495
VL - 27
SP - 3083
EP - 3090
JO - Journal of Materials Engineering and Performance
JF - Journal of Materials Engineering and Performance
IS - 6
ER -