熔体中氢含量对ZL114A合金冲击韧度的影响
Effect of Hydrogen Content in Aluminum Melt on Impact Toughness
摘 要
通过测试铝合金熔体中的氢含量和合金的冲击韧度,分析材料显微组织和断口微观断裂特征,研究了铝合金熔体中氢含量对铸件冲击韧度的影响.结果表明:试验条件下合金中的气孔呈球形弥散分布,合金的冲击韧度随着氢含量的增多而增大.
氢含量
ZL114A合金
impact toughness
hydrogen content
alloy ZL114A
Abstract
By measuring the hydrogen content in aluminum melt and the impact toughness of alloy ZL114A,the relationship of hydrogen content and impact toughness had been established.The optical microscopy and SEM results indicate that pinholes are spherical and dispersed in the microstructure.With the increase of hydrogen content,the impact toughness increased.
中图分类号 TG132.3
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收稿日期 2006/11/27
修改稿日期 2007/12/20
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备注邹勇志(1978-),女,山东蓬莱人,博士研究生.
引用该论文: ZOU Yong-zhi,ZENG Jian-min,WANG Li-jun,GU Hong. Effect of Hydrogen Content in Aluminum Melt on Impact Toughness[J]. Materials for mechancial engineering, 2008, 32(5): 26～28
邹勇志,曾建民,王力军,顾红. 熔体中氢含量对ZL114A合金冲击韧度的影响[J]. 机械工程材料, 2008, 32(5): 26～28
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参考文献
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【2】Kashyap K T,Murali S,Raman K S.Casting and Heat Treatment Variables of Al-7Si-Mg[J].Materials Science Technology,1993,9:189-203.
【3】Wang Q G,Apelian D,Lados D A.Fatigue behavior of A356-T6 aluminum cast alloys[J].Journal of Light Metals,2001(1):73-84.
【4】Tiryakioglu M,Campbell J,Staley J T.Hardness-strength relationships in cast Al-Si-Mg alloys[J].Materials Science Forum,2000(2):295-300.
【5】Sig worth G K,Shivkumar S,Apelian D.The influence of molten metal processing on mechanical properties of cast Al-Si-Mg alloys[J].AFS,1989,97:811-824.
【6】黄明志.金属力学性能[M].西安:西安交通大学出版社,1986:99-104.
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