机械振动对H62黄铜凝固组织和硬度的影响

钱小兵; 陈乐平; 周全

doi:10.15980/j.tzzz.2013.11.009

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机械振动对H62黄铜凝固组织和硬度的影响
Effects of Mechanical Vibration on Solidified Structure and Hardness of H62 Brass
2013年33卷第11期页码：1054-1056
纸质出版日期： 2013 ，
DOI： 10.15980/j.tzzz.2013.11.009

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[1]钱小兵,陈乐平,周全.机械振动对H62黄铜凝固组织和硬度的影响[J].特种铸造及有色合金,2013,33(11):1054-1056.

Qian Xiaobing, Chen Leping, Zhou Quan. Effects of Mechanical Vibration on Solidified Structure and Hardness of H62 Brass[J]. Special Casting & Nonferrous Alloys, 2013,33(11):1054-1056.
[1]钱小兵,陈乐平,周全.机械振动对H62黄铜凝固组织和硬度的影响[J].特种铸造及有色合金,2013,33(11):1054-1056. DOI： 10.15980/j.tzzz.2013.11.009.

Qian Xiaobing, Chen Leping, Zhou Quan. Effects of Mechanical Vibration on Solidified Structure and Hardness of H62 Brass[J]. Special Casting & Nonferrous Alloys, 2013,33(11):1054-1056. DOI： 10.15980/j.tzzz.2013.11.009.

摘要

研究了机械振动对H62黄铜凝固组织和硬度的影响。结果表明

在凝固过程中施加机械振动可以明显改善H62黄铜的凝固组织

使其由粗大的柱状晶转变为等轴晶

同时对改善中心疏松及组织均匀化有明显的影响;随着振幅的增大

组织细化效果越来越显著

硬度逐渐提高。

Abstract

Effects of mechanical vibration on solidification structure and hardness of H62brass were investigated by changing amplitude.The results show that solidification structure of H62brass can be improved significantly by mechanical vibration

which is converted from coarse columnar crystal to equiaxed crystal.Meanwhile

mechanical vibration has obvious effects on shrinkage porosity in central part and on homogenization of microstructure.With the increase of amplitude

the grain size is decreased and hardness of the alloy is increased.