Effect of Ce and Heat Treatment on Microstructure and Hardness of Tin Bronze Alloy

Zhang Jing

doi:10.15980/j.tzzz.2014.11.026

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Effect of Ce and Heat Treatment on Microstructure and Hardness of Tin Bronze Alloy
Vol. 34, Issue 11, Pages: 1202-1204(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.11.026

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[1]张静.稀土Ce及热处理对锡青铜组织和硬度的影响[J].特种铸造及有色合金,2014,34(11):1202-1204.

Zhang Jing. Effect of Ce and Heat Treatment on Microstructure and Hardness of Tin Bronze Alloy. [J]. Special Casting & Nonferrous Alloys 34(11):1202-1204(2014)
[1]张静.稀土Ce及热处理对锡青铜组织和硬度的影响[J].特种铸造及有色合金,2014,34(11):1202-1204. DOI： 10.15980/j.tzzz.2014.11.026.

Zhang Jing. Effect of Ce and Heat Treatment on Microstructure and Hardness of Tin Bronze Alloy. [J]. Special Casting & Nonferrous Alloys 34(11):1202-1204(2014) DOI： 10.15980/j.tzzz.2014.11.026.

摘要

通过OM、SEM、EDS、硬度测试等分析手段

研究了Ce及热处理工艺对ZQSn10-2合金组织和性能的影响。结果表明

加入0.06%的Ce后

ZQSn10-2合金晶粒细化

二次枝晶间距减小

基体中Sn偏析程度减弱

硬度有所提高。随着热处理温度的升高

合金中δ相减少

α-Cu固溶体中Sn含量增大

ZQSn10-2合金晶粒转变为细小的等轴晶。合金硬度也随热处理温度的升高而提高。

Abstract

Effects of Ce and heat treatment on the microstructure and properties of ZQSn10-2tin bronze alloy were investigated by OM（optical microscopy）

SEM（scanning electron microscopy）

EDS（energy dispersed spectrometer）and hardness test.The results show that the grain size in the ZQSn10-2alloy is refined and the secondary dendrite arm spacing is decreased with the addition of 0.06% Ce.Additionally

the segregation of Sn is weakened and the hardness is increased slightly.After heat treatment

δphase is dissolved intoα-Cu solid solution

and the grain is transformed into fined equiaxed crystal

meanwhile

the hardness is also increased with the increase of heat treatment temperature.