| ZL205A合金壳体铸件线性偏析缺陷形成机理研究 |
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| 引用本文： | 李玉胜,翟虎,闫卫平,宋国金,冯志军,曲选辉.ZL205A合金壳体铸件线性偏析缺陷形成机理研究[J].铸造,2006,55(11):1170-1173. |
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| 作者姓名： | 李玉胜 翟虎 闫卫平 宋国金 冯志军 曲选辉 |
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| 作者单位： | 1. 北京科技大学,北京,100083
2. 沈阳铸造研究所,辽宁,沈阳,110022 |
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| 摘 要： | 在对ZL205A合金壳体铸件探伤时发现,部分铸件有宏观形貌与裂纹相似的线性偏析组织,取样分析发现该偏析组织微观形貌为枝晶状,通过电子探针分析确定其成分为CuAl2。本文根据ZL205A合金壳体铸件线性偏析的特征,分析了CuAl2在晶界、在铸件壁厚过渡处偏析的原因,探讨了CuAl2的偏析结晶机理以及线性偏析的解决措施。
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| 关 键 词： | ZL205A合金 线性偏析 形貌 机理 解决措施 |
| 文章编号： | 1001-4977(2006)11-1170-04 |
| 收稿时间： | 2006-05-23 |
| 修稿时间： | 2006-08-31 |
The Study on Formative Mechanism of Linearity Segregation of ZL205A Alloy Shelly Casting |
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| LI Yu-sheng,ZHAI HU,YAN Wei-ping,SONG Guo-jin,FENG Zhi-jun,QU Xuan-hui.The Study on Formative Mechanism of Linearity Segregation of ZL205A Alloy Shelly Casting[J].Foundry,2006,55(11):1170-1173. |
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| Authors: | LI Yu-sheng ZHAI HU YAN Wei-ping SONG Guo-jin FENG Zhi-jun QU Xuan-hui |
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| Affiliation: | 1. University of Science and Technology Beijing, Beijing 100083, China; 2. Shenyang Research Institute of Foundry, Shenyang 110022, Liaoning, China |
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| Abstract: | Shenyang Research Institute of Foundry discovers the linearity segregation in ZL205A shelly casting by X-ray tested. It discovers the CuAI2 structure by quantitative and qualitative analysis, and discusses the cause of CuAl2 segregation in grain boundary and the cause of CuAl2 segregation in the thickness transition of wall, crystal mechanism of CuAl2 segregation and the solution based on the characteristic of linearity segregation in ZL205A alloy shelly casting. |
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| Keywords: | CuAl2 |
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