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C C. A correlation between tensile flow stress and Zenner-Hollomon factor in TiAl alloys at high temperatures[J]. Journal of Materials Science Letters, 2000, 19(13): 1185-1188. [17] 吴文祥, 孙德勤, 曹春艳, 王... ~ l0 s-1条件下的流变应力行为,计算,推导出用包含Arrhenius项的Zener-Hollomon参数描述2E12合金高温压缩流变行为的表达式,并分析形变热,变形温度和应变速率等参数对流变应力的影响规律.结果表明:应变速率和变形温度对2E12合金的流变应力影响显著,流变应力随着温度的升高而降低,随着应变速率的提高而增大；在≥1 s-1时,形变热导致流变应力降低,且幅度随着应变速率的增大而增大......
of an Al-5.7wt.% Mg alloy with erbium[J]. Materials Science and Engineering A, 2009, 517(1/2): 132-137. [12] WANG Yu, LIU Dong-liang, LAY C C. A correlation between tensile flow stress and Zenner-Hollomon...温流变行为可用Zener-Hollomon参数描述.在热变形过程中,随着真应变增加,合金的变形失稳区域增大.该合金适宜的变形条件如下:变形温度300~360 ℃,应变速率0.01~0.32 s-1,或变形温度380~500 ℃,应变速率0.56~ 10 s-1. 关键词:Al-Zn-Mg-Sc-Zr合金；热变形；加工图 中图分类号:TG113.26 ......
) where is the effective strain rate; σ is the flow stress and T is the temperature. The flow stress is determined by Zenner-Hollomon equation as [17,18]: (2) where A, β and n are the material constants, and Z is the Zener-Hollomon parameter which represents the temperature compensated effective strain rate, and is calculated according to ......
be expressed in the Zenner-Hollomon form: (16) In order to verify the developed constitutive model, comparisons between the predicted and experimental results were carried out as shown in Fig. 11... at different strains were calculated using the Arrhenius equation. The effects of temperature and strain rate on deformation behavior were represented using the Zener–Hollomon parameter in an exponent-type......
) for alloy C, i.e., 154.36 kJ/mol. The combined effect of temperature and strain rate on the flow stress behavior can be also described by the Zenner-Hollomon parameter at all stress levels [27] (as Eq...: 1136-1138. [27] ZENER C, HOLLOMON J. Effect of strain rate upon plastic flow of steel [J]. Journal of Applied Physics, 1944, 15: 22-32. [28] MCQUEEN H J, RYAN N D. Constitutive analysis in hot working [J......
