| A537钢在盐水中疲劳裂纹尖端塑性区尺寸减小与声发射 |
| |
| 引用本文： | 王政富,李劲,魏学军,周向阳,柯伟,朱祖铭. A537钢在盐水中疲劳裂纹尖端塑性区尺寸减小与声发射[J]. 材料研究学报, 1994, 8(1): 18-22 |
| |
| 作者姓名： | 王政富 李劲 魏学军 周向阳 柯伟 朱祖铭 |
| |
| 作者单位： | 中国科学院金属腐蚀与防护研究所腐蚀科学开放实验室，中国科学院金属研究所疲劳与断裂国家重点实验室 |
| |
| 基金项目： | 中国科学院腐蚀科学开放实验室的资助 |
| |
| 摘 要： | 研究了Ａ５３７低强度结构钢在空气和３．５％ＮａＣｌ中性水溶液中疲劳裂纹扩展及其相应的声发射规律。结果表明腐蚀疲劳裂纹扩展过程中声发射活动下降。由于裂纹尖端塑性区内的位错运动是疲劳与腐蚀疲劳裂纹扩展的主要声发射源，所以认为声发射活动性下降是氢使尖塑性尺寸减小所致。用激光散斑干涉法裂纹尖端应变分布，证明氢的存在使裂尖塑性区尺寸减小，氢的存在同提高裂尖局部材料的流变应力。
|
| 关 键 词： | 腐蚀疲劳 声发射 裂尖塑性区 结构钢 |
| 收稿时间： | 1994-02-25 |
| 修稿时间： | 1994-02-25 |
REDUCTION OF PLASTIC ZONE SIZE AT CRACK TIP AND ACOUSTIC EMISSION FOR A537 STEEL IN 3.5% NaC1 SOLUTION DURING CORROSION FATIGUE GROWTH |
| |
| WANG Zhengfu,LI Jin,WEI Xuejun,ZHOU Xiangyang,KE WeiZHU Zuming(State Key Laboratory for Fatigue and Fracture of Materials. REDUCTION OF PLASTIC ZONE SIZE AT CRACK TIP AND ACOUSTIC EMISSION FOR A537 STEEL IN 3.5% NaC1 SOLUTION DURING CORROSION FATIGUE GROWTH[J]. Chinese Journal of Materials Research, 1994, 8(1): 18-22 |
| |
| Authors: | WANG Zhengfu LI Jin WEI Xuejun ZHOU Xiangyang KE WeiZHU Zuming(State Key Laboratory for Fatigue Fracture of Materials |
| |
| Affiliation: | WANG Zhengfu,LI Jin,WEI Xuejun,ZHOU Xiangyang,KE Wei(Corrosion Science Laboratory,Institute of Corrosion andProtection of Melals,Chinese Academy of Sciences)ZHU Zuming(State Key Laboratory for Fatigue and Fracture of Materials,Institute of Metal Res |
| |
| Abstract: | The fatigue crack propagation, the plastic deformation at the crack tip and the acoustic emission behaviour for each cycle of crack growth were studied for a low strength steel A537 in both air and 3.5%NaC1 aqueous solution. The reduction in the speCimen |
| |
| Keywords: | corrosion fatigue acoustic emission plastic zone at crack tip |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《材料研究学报》浏览原始摘要信息 |
|
点击此处可从《材料研究学报》下载全文 |
