| 变质剂对ZA27合金半固态等温热处理组织的影响 |
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| 引用本文： | 陈体军,郝远,狄杰建,马颖,陆松. 变质剂对ZA27合金半固态等温热处理组织的影响[J]. 热加工工艺, 2001, 0(4): 23-25 |
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| 作者姓名： | 陈体军 郝远 狄杰建 马颖 陆松 |
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| 作者单位： | 1. 甘肃工业大学材料科学与工程学院
2. 中国矿业大学研究生院 |
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| 基金项目： | 甘肃省中青年科技基金项目(YS981-A22-005) |
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| 摘 要： | 研究了变质剂Ti、B－Ti及Zr对ZA27合金铸态组织和半固态等温热处理组织的影响。结果表明：Zr的变质效果最好，下来依次是B－Ti,Ti经半固态等温热处理后都可获得触变成形所需的半固态非枝晶组织、但变质组织越细，越易获得良好的非枝晶组织，变质效果越差，需要热处理的时间越长或温度越高。
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| 关 键 词： | ZA27合金 变质剂 半固态等温热处理 非枝晶组织 触变铸造 |
| 文章编号： | 1001-3814(2001)04-0023-03 |
| 修稿时间： | 2001-03-12 |
Effects of Modifiers on Microstructure of ZA27 Alloy during Semi-solid Isothermal Heat Treatment |
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| CHEN Ti un ,HAO Yuan ,DI Jie jian ,MA Ying ,LU Song. Effects of Modifiers on Microstructure of ZA27 Alloy during Semi-solid Isothermal Heat Treatment[J]. Hot Working Technology, 2001, 0(4): 23-25 |
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| Authors: | CHEN Ti un HAO Yuan DI Jie jian MA Ying LU Song |
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| Affiliation: | CHEN Ti un 1,HAO Yuan 1,DI Jie jian 1,MA Ying 1,LU Song 2 |
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| Abstract: | The effects of modifiers,such as Ti,B Ti and Zr on as cast microstructure and semi solid isothermal heat treated microstructure were investigated.The results showed that the modification effect of Zr is the best one,followed by B Ti and Ti successively.The non dendritic structure for thixo forming could be obtained when ZA27 alloy modified by these elements was heat treatd at semi solid temperature.The smaller the modified structure was,the easier the non dendritic structure could be obtained,and the more developed and the coarser the dendritic structure was,the longer the time or the higher the temperature was needed. |
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| Keywords: | ZA27 alloy modifier semi solid isothermal heat treatment non dendritic structure |
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