| 铸钢试棒力学性能不合格原因分析 |
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| 引用本文： | 程年云. 铸钢试棒力学性能不合格原因分析[J]. 理化检验(物理分册), 2003, 39(7): 346-347,350 |
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| 作者姓名： | 程年云 |
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| 作者单位： | 武汉江岸车辆厂,武汉,430012 |
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| 摘 要： | 对日常检测中材料ZG230-450两类力学性能不合格现象的试棒进行了宏观检验和显微组织分析。结果表明，试棒中出现残余铸态组织、集中夹杂物和显微缩松等缺陷是造成这两类力学性能不合格的原因。提出了改进措施。
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| 关 键 词： | 铸钢 力学性能 残余铸态 集中夹杂物 显微缩松 断口宏观检验 金相组织检验 化学成分分析 |
| 文章编号： | 1001-4012(2003)07-0346-02 |
ANALYSIS OF CASTING STEEL SPECIMEN WHICH MECHANICAL PROPERTY IS INELIGIBLE |
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| CHENG Nian-yun. ANALYSIS OF CASTING STEEL SPECIMEN WHICH MECHANICAL PROPERTY IS INELIGIBLE[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2003, 39(7): 346-347,350 |
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| Authors: | CHENG Nian-yun |
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| Abstract: | During daily test, two kind of ZG230-450 which mechanical property is ineligible were analyzed by means of macroscopic fracture and microstructure analysis. The results show that there were residual-cast-pattern, concentrated inclusion and microshyinkage-holes in samples. These factors resulted that two kind of ZG230-450 specimen which mechanical property is ineligible. The prevention method were also proposed to avoid similar events. |
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| Keywords: | Mechanical property Residual-cast-pattern Concentrated inclusion Microshyinkage-holes |
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