| 贮箱环焊缝开裂失效分析 |
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| 引用本文： | 王永庆. 贮箱环焊缝开裂失效分析[J]. 理化检验(物理分册), 2002, 38(8): 352-354 |
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| 作者姓名： | 王永庆 |
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| 作者单位： | 航天材料及工艺研究所,北京,100076 |
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| 摘 要： | 一贮箱在水压试验时环焊缝开裂导致泄漏。对焊缝断口和材料组织进行了分析，认为焊缝泄漏是由于局部存在密集热裂纹所致。对热裂纹的产生机理进行了分析，提出了预防措施。
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| 关 键 词： | 贮箱 环焊缝 失效分析 开裂 热裂纹 水压试验 产生机理 |
| 文章编号： | 1001-4012(2002)08-0352-03 |
| 修稿时间： | 2001-09-27 |
FRACTURE ANALYSIS ON CONTAINER CIRCLE WELD SEAM |
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| WANG Yong qing. FRACTURE ANALYSIS ON CONTAINER CIRCLE WELD SEAM[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2002, 38(8): 352-354 |
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| Authors: | WANG Yong qing |
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| Abstract: | A container leakage is caused by circle welding seam fractures in the course of hydraulic pressure test. A study on fracture surface and microstructure has been made in this paper. It is shown that the leakage is caused due to the hot crack in some areas of the welding seam. By the way, the conditions causing hot cracks and the measure to prevent the crack are also discussed. |
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| Keywords: | Weld seam Fracture Hot cracks |
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