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with the experimental results, which confirms that the developed constitutive equations can be used to predict the flow stress of NZ30K alloy during hot deformation. Key words: NZ30K alloy? magnesium alloy... and predict the flow stress of NZ30K magnesium alloy during hot compression. The validity of the developed constitutive equations was also investigated over the entire experimental range. 2 Experimental......
by a group of parallel and straight lines in hot deformation conditions, demonstrating that the peak stress of the studied alloy can be represented by a Zener- Hollomon parameter in an exponent-type... flow softening. The stress decreases with increasing deformation temperature and decreasing strain rate, which can be represented by an exponential equation with a Zener-Hollomon parameter......
and decreasing the strain rate. Key words: Al-Mn-Mg-Cu-Ni alloy; hot compression deformation; flow stress; microstructure  ... AA6082 aluminum alloy[J]. Scripta Materialia, 2003, 49(2): 179?183. [15] ZHANG H, LI L X, DENG Y, PENG D S. Hot deformation behavior of the new Al-Mg-Si-Cu aluminum alloy during compression......
parameter. The strain rate sensitivity index (m) of AZ91D magnesium alloy is equal to 0.14. Key words: AZ91D magnesium alloy; elevated temperature compression; flow stress; Zener-Hollomon parameter...缩;流变应力;Zener-Hollomon参数 中图分类号:TG146.2 文献标识码: A Compression deformation behavior of AZ91D magnesium alloy at elevated temperature ZHANG Xiao-hua, JIANG Ju-fu......
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, XRD and TEM were employed to characterize the flow stress behavior and microstructure of twin roll cast ZK60 magnesium alloy during initial stage of hot compression at elevated temperature of 300... flow stress rather than stress rebound directly followed the stress drop during hot deformation at 400 ℃. Fig.1 (0002) pole figure (a) and micrograph (b) of as twin-roll cast strip of ZK60 alloy......
Study on the hot deformation behavior of Al-Zn-Mg-Cu-Craluminum alloy during multi-stage hot compression Di FENG1,Xiaoyan ZHENG1,Gaoyong LIN1,Dashu PENG1,Wei YANG1 (1.School of Materials Science and Engineering,Central South University,Changsha 410083,China) Abstract:The mechanical behavior and microstructures of an Al-Zn-Mg-Cu-Cr aluminum alloy during multi-stage hot deformation were......
Effect of Zener-Hollomon parameter on deformation microstructure in Fe-3%Si alloyFenghui AN,Yuhui SHA*,Fang ZHANG and Liang ZUO Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education),Northeastern University,Shenyang 110819,China摘 要:Hot deformation of Fe-3%Si alloy within the temperature range of 1073-1473 K and strain rate range......
by experiment is less than 8%. Key words:magnesium alloy; flow stress model; hot deformation; strain soft-ening; [全文内容正在添加中] ... sensitive exponent and stress exponent are different at various deformation conditions changing from 1i3.6 to 176.3k J/mol,0.125 to 0.167 and 6 to 8 respectively.A flow stress model for AZ61 alloy......
of nickel-titanium shape memory alloy (Ni-Ti SMA) under hot deformation was investigated by means of the compression tests and the linear fitting method. Based on the true stress-strain curves of Ni... parameter was established according to the high stress level and the low stress level at various temperatures so as to more accurately describe the deformation behavior of Ni-Ti SMA during hot working......