| 氢对不锈钢纳米压痕蠕变的影响 |
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| 引用本文： | 郜欣,乔利杰,宿彦京,褚武扬.氢对不锈钢纳米压痕蠕变的影响[J].金属学报,2005,41(4):342-346. |
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| 作者姓名： | 郜欣 乔利杰 宿彦京 褚武扬 |
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| 作者单位： | 北京科技大学材料物理系,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目50171013 |
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| 摘 要： | 用纳米力学探针研究了氢对316不锈钢单晶纳米压痕蠕变的影响.结果表明,当可扩散氢浓度(Co≥9.7×10-6后,原 子氢能使室温饱和蠕变位移升高近一倍.室温除气后,其蠕变曲线和充氢前的曲线基本一致.这种可逆性表明,氢促进蠕变是由扩 散氢引起的.当Co≥50.4×10-6后,在室温时效过程中会形成α'马氏体和微裂纹,α'马氏体的饱和蠕变量比奥氏体要小.当 Co=174.4×10-6时,充氢过程中就出现α'马氏体, γ +α'复相组织的氢致蠕变位移升高明显比单相γ要小.
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| 关 键 词： | 氢 316不锈钢 纳米压痕 蠕变 |
| 文章编号： | 0412-1961(2005)04-0342-05 |
| 收稿时间： | 2004-06-21 |
| 修稿时间： | 2004-09-13 |
Effect Of Hydrogen On Nanoindentation Creep Of Type 316 Stainless Steel |
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| GAO Xin,QIAO Lijie,SU Yanjing,CHU Wuyang.Effect Of Hydrogen On Nanoindentation Creep Of Type 316 Stainless Steel[J].Acta Metallurgica Sinica,2005,41(4):342-346. |
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| Authors: | GAO Xin QIAO Lijie SU Yanjing CHU Wuyang |
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| Affiliation: | Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083 |
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| Abstract: | The effect of hydrogen on nanoindentation creep of type 316 stainless
steel has been investigated by nanoindentation techniques. The results
showed that the crept saturation displacement increased twice After
outgassing at room temperature for 200 h, the creep curves are basically
identical with that before charging. This indicates the creep is caused
by diffused hydrogen. |
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| Keywords: | hydrogen type 316 austenitic stainless steel nanoindentation creep |
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