期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Flow stress prediction of Hastelloy C-276 alloy using modified Zerilli−Armstrong,Johnson−Cook and Arrhenius-type constitutive models 被引量:16
1
作者 Yu LIU Ming LI +3 位作者 Xian-wei REN Zheng-bing XIAO xie-yi zhang Yuan-chun HUANG 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2020年第11期3031-3042,共12页
To better understand the hot deformation behaviors of Hastelloy C-276 alloy under elevated temperatures,hot tensile tests were carried out in the temperature range of 1223−1423 K and the strain rate range of 0.01−10 s... To better understand the hot deformation behaviors of Hastelloy C-276 alloy under elevated temperatures,hot tensile tests were carried out in the temperature range of 1223−1423 K and the strain rate range of 0.01−10 s^−1,respectively.Based on the modified Zerilli−Armstrong,modified Johnson-Cook,and strain-compensated Arrheniustype models,three constitutive equations were established to describe the high-temperature flow stress of this alloy.Meanwhile,the predictability of the obtained models was evaluated by the calculation of correlation coefficients(r)and absolute errors(Δ),where the values of r for the modified Zerilli−Armstrong,Johnson−Cook,and Arrhenius-type constitutive models were computed to be 0.935,0.968 and 0.984,and the values ofΔwere calculated to be 13.4%,10.5%and 6.7%,respectively.Moreover,the experimental and predicted flow stresses were compared in the strain range of 0.1−0.5,the results further indicated that the obtained modified Arrhenius-type model possessed better predictability on hot flow behavior of Hastelloy C-276. 展开更多
关键词 Hastelloy C-276 alloy hot tensile behaviors constitutive models flow stress
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部