| 7A52合金锻件探伤不合格的原因分析 |
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| 引用本文： | 陈丽君.7A52合金锻件探伤不合格的原因分析[J].铝加工,2010(4):43-45. |
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| 作者姓名： | 陈丽君 |
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| 作者单位： | 东北轻合金有限责任公司,黑龙江,哈尔滨,150060 |
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| 摘 要： | 分析了7A52合金锻件探伤不合格的原因，确认探伤缺陷是内部组织中存在粗大金属化合物聚集，导致锻件变形时沿粗大化合物开裂所致，并从合金元素含量、熔铸温度、液流分配、漏斗预热等方面提出了解决措施。
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| 关 键 词： | 7A52合金 粗大化合物 裂纹 探伤 |
Analysis on Disqualification Cause of Ultrasonic Non-destructive Testing for 7A52 Alloy Forgings |
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| CHEN Li-jun.Analysis on Disqualification Cause of Ultrasonic Non-destructive Testing for 7A52 Alloy Forgings[J].Aluminium Fabrication,2010(4):43-45. |
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| Authors: | CHEN Li-jun |
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| Affiliation: | CHEN Li-jun (Northeast Light Alloy Co.Ltd., Harbin 150060,China) |
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| Abstract: | Disqualification cause of ultrasonic non-destructive testing for 7A52 alloy forgings was analyzed in the paper.It was confirmed that the defects was due to coarse metal compound existed in internal structure,thus cracking along coarse compound during forging deformation.Solution was put forward from the aspects of alloy element content,melting and casting temperature,flow distribution and funnel pre-heating etc. |
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| Keywords: | 7A52 alloy coarse compound cracking ultrasonic non-destructive testing |
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