| 氢对TC21合金高温变形行为的影响 |
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| 引用本文： | 姜波,王耀奇,侯红亮,牛勇,李淼泉. 氢对TC21合金高温变形行为的影响[J]. 材料工程, 2011, 0(5): 70-75 |
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| 作者姓名： | 姜波 王耀奇 侯红亮 牛勇 李淼泉 |
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| 作者单位： | 1. 北京航空制造工程研究所,北京,100024
2. 西北工业大学,材料科学与工程学院,西安,710072 |
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| 摘 要： | 采用连续升温金相法研究了氢对TC21合金相变温度的影响,通过热模拟压缩实验,研究了氢对TC21合金高温变形行为的影响.结果表明:置氢可以显著降低TC21合金的相变温度,置氢0.7%(质量分数,下同)的TC21合金相变温度为810℃,与未置氢合金相比,降幅达145℃;同时,置氢还可以有效降低TC21合金的流变应力,并且温...
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| 关 键 词： | TC21合金 置氢 高温变形行为 |
Effects of Hydrogen on Hot Deformation Behavior of TC21 Alloys |
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| JIANG Bo,WANG Yao-qi,HOU Hong-liang,NIU Yong,LI Miao-quan. Effects of Hydrogen on Hot Deformation Behavior of TC21 Alloys[J]. Journal of Materials Engineering, 2011, 0(5): 70-75 |
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| Authors: | JIANG Bo WANG Yao-qi HOU Hong-liang NIU Yong LI Miao-quan |
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| Affiliation: | JIANG Bo1,WANG Yao-qi1,HOU Hong-liang1,NIU Yong2,LI Miao-quan2(1 Beijing Aeronautical Manufacturing Technology Research Institute,Beijing 100024,China,2 School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | The effects of hydrogen on the transformation temperature and hot deformation behavior of TC21 alloys were investigated through microscopic analysis and isothermal compression tests respectively.The results indicate that the transformation temperature of TC21 alloys decreases significantly after hydrogenating,so that the transformation temperature of TC21 alloys containing 0.7%(mass fraction)H is 810℃,which decreases by 145℃ compared with natural hydrogen.Meanwhile,the flow stress of TC21 alloys decreases effectively too after hydrogenating and the effects of hydrogen on flow stress become obvious with deformation temperature decreasing and strain rate increasing.The steady state stress of TC21 alloys containing 0.28%H reaches 202MPa,which decreases by 28% compared with natural hydrogen.Under the same stress level,deformation temperature decreases by 40℃ and strain rate increases one order of magnitude after hydrogenating. |
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| Keywords: | TC21 alloy hydrogenation hot deformation behavior |
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