| C70250合金热变形行为研究 |
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| 引用本文： | 李华清,汤玉琼,陈忠平. C70250合金热变形行为研究[J]. 有色金属材料与工程, 2010, 31(1): 5-9 |
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| 作者姓名： | 李华清 汤玉琼 陈忠平 |
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| 作者单位： | 苏州有色金属研究院有限公司,江苏,苏州,215026 |
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| 摘 要： | 采用Gleeble-3500热模拟试验机进行热压缩试验，研究了Cu-3．6Ni-1．0Si合金在变形温度为500～950℃、变形速率为0．01～10s。状态下的热塑性变形行为。根据应力．应变数据，构建了cu．3．6Ni-1．0Si合金热塑性变形过程中流变应力与变形温度、变形速率等加工参数之间的本构关系方程。经过参数拟合与优化，得到Cu-3．6Ni-1．0Si合金在650～950℃之间、热变形过程的应力．应变速率关系方程。试验结果及分析表明，Cu-3．6Ni-1．0Si合金加热保温及开轧温度应以950℃为上限，终轧温度以高于7000C为宜，不能低于650℃，热轧加工变形速率范围在0．1～10s-1之间。
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| 关 键 词： | C70250合金 流变应力 热变形 应变速率 |
Hot Plastic Deformation Behavior of C70250 Alloy |
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| LI Hua-qing,TANG Yu-qiong,CHEN Zhong-ping. Hot Plastic Deformation Behavior of C70250 Alloy[J]. Nonferrous Metal Materials and Engineering, 2010, 31(1): 5-9 |
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| Authors: | LI Hua-qing TANG Yu-qiong CHEN Zhong-ping |
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| Affiliation: | Ll Hua-qing,TANG Yu-qiong,CHEN Zhong-ping(Suzhou Nonferrous Metals Research Institute Co.,Ltd.,Suzhou 215026,China) |
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| Abstract: | The hot plastic deformation behavior of C70250 alloy in the temperature range of 500 - 950℃ and strain rate range of 0.01 ～ 10s^-1 was investigated by hot compressing test on a Gleeble-3500 imulator. The constitutive equation among stress temperature and strain rate was calculated according to the data of true stress-strain curve under various temperatures as well as different strain rates. The test results indicate that the suitable rolling temperature is between 700℃ and 950℃, and the strain rate is 0.1 - 10s^-1. |
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| Keywords: | C70250 alloy rheodynamic stress hot deformation strain rate |
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