| MGH754合金两种固实化状态的热塑性研究 |
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| 引用本文： | 李帅华,柳光祖,杨峥.MGH754合金两种固实化状态的热塑性研究[J].钢铁研究学报,2009,21(8):49-0. |
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| 作者姓名： | 李帅华 柳光祖 杨峥 |
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| 作者单位： | 钢铁研究总院高温材料研究所,北京,100081 |
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| 摘 要： | 在Gleeble 1500热模拟试验机上，应用热拉伸方法来研究MGH754合金的热等静压和热挤压状态组织在800 ℃~1 200 ℃范围内的热塑性行为。结果表明：热挤压态组织的塑性峰值出现在1 100 ℃左右，而热等静压态的则是在1 200 ℃甚至更高。同时还发现，由于原始颗粒边界的原因，MGH754合金热等静压态的塑性要比热挤压态的低很多。
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| 关 键 词： | MGH754合金 原始颗粒边界 热等静压 塑性峰值 |
| 收稿时间： | 1900-01-01; |
Thermoplasticity of Two Consolidated States of MGH754 Alloy |
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| LI Shuai-hua,LIU Guang-zu,YANG Zheng.Thermoplasticity of Two Consolidated States of MGH754 Alloy[J].Journal of Iron and Steel Research,2009,21(8):49-0. |
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| Authors: | LI Shuai-hua LIU Guang-zu YANG Zheng |
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| Affiliation: | High Temperature Materials Division, Central Iron and Steel Research Institute, Beijing 100081, China |
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| Abstract: | Thermoplasticity behaviors of hot isostatic pressing (HIP) and hot extrusion (HEX )states of MGH754 alloy have been investigated by use of Gleeble 1500 simulator through thermo tensile test at the temperature ranging from 800 ℃ to 1 200 ℃.The results show that the ductility summit of HEX states of MGH754 alloy appears at about 1 100 ℃ while HIP′s appears at 1 200 ℃ even much higher. Additionally , the ductility of HIP state of MGH754 alloy is much lower than HEX’s because of existence of prior particle boundary. |
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| Keywords: | MGH754 alloy prior particle boundary hot isostatic pressing ductility summit |
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