| SiCp/2024复合材料的氢脆敏感性研究 |
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| 引用本文： | 姚红宇,宋余九.SiCp/2024复合材料的氢脆敏感性研究[J].复合材料学报,1996,13(2):33-37. |
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| 作者姓名： | 姚红宇 宋余九 |
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| 作者单位： | [1]北京科技大学表面科学与腐蚀工程系 [2]四川联合大学金材系 |
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| 摘 要： | 在浸泡、阴极极化、阴极极化同时迭加拉伸变形、添加As2O3毒化剂等常见致氢条件下,通过慢应变速率拉伸试验研究了SiCp/2024复合材料的力学性能,考察了断口形貌.测定了该材料在按几种常用充氢条件充氢后的氢含量.发现虽然强烈阴极极化使材料力学性能下降,但其原因在于阴极极化引起的碱性腐蚀,与氢脆无关.获得了不同于前人研究的新结论:在本文试验条件下SiCp/2024材料不发生氢脆,也不发生不可逆氢损伤,其原因与该材料难以充入氢有关.
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| 关 键 词： | 金属基复合材料 铝合金 氢脆 |
| 收稿时间： | 1994-09-13 |
| 修稿时间： | 1994-11-11 |
STUDY ON THE SUSCEPTIBILITY OF SIC_p/2024 COMPOSITE TO HYDROGEN ENERITTLEMENT |
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| Yao Hongyu,Tu Mingjing,Song Yujiu,Ma zongyao.STUDY ON THE SUSCEPTIBILITY OF SIC_p/2024 COMPOSITE TO HYDROGEN ENERITTLEMENT[J].Acta Materiae Compositae Sinica,1996,13(2):33-37. |
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| Authors: | Yao Hongyu Tu Mingjing Song Yujiu Ma zongyao |
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| Affiliation: | 1. Department of Surface Science & Corrosion Engineering, Beijing University of Science and Technology, Beijing 100083;2. Department of Metallic Materials, Sichuan United University, Chengdu 610065;3. College of Materials Science and Engineering, Xi'an Jiao Tong University, Xi'an 710049;4. Department of Aeronautical Manufacturing Engineering, Northwestern Polytechnical University Xi'an 710072 |
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| Abstract: | The mechanical performance of SiCp/2024 composite,after pre-Charged with hydrogen and during the dynamical cathodic hydrogen-charging,is studied by the slow strain rate tension technique,The fractographs are examined.The hydrogen content of the composite,after charged with hydrogen under several usually employed charging conditions,is determined.It is revealed that strong cathodic polarization deteriorates the mechanical performance for the reason of alkaline corrosion caused by the polarization.This deterioration has nothing to do with hydrogen embrittlement.The results lead to a new conclusion,that under the present test conditions,the composite suffers neither hydrogenembrittlement nor irreversible hydrogen damage,This is related to the fail in hydrogencharging. |
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| Keywords: | metal matrix composite aluminum alloy hydrogen embrittlement |
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