The Structure and Property of Squeeze Cast ZA-27 Alloy

Yu Haipeng  Zhang Fuqiang  Li Rongde  Yin Jingtian  Song Changqin  Huang Ying

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The Structure and Property of Squeeze Cast ZA-27 Alloy
Issue S1, Pages: 200-203(2002)
Published： 2002 ，
DOI：

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Yu Haipeng Zhang Fuqiang Li Rongde Yin Jingtian Song Changqin Huang Ying. The Structure and Property of Squeeze Cast ZA-27 Alloy. [J]. Special Casting & Nonferrous Alloys (S1):200-203(2002)
DOI：

Yu Haipeng Zhang Fuqiang Li Rongde Yin Jingtian Song Changqin Huang Ying. The Structure and Property of Squeeze Cast ZA-27 Alloy. [J]. Special Casting & Nonferrous Alloys (S1):200-203(2002) DOI：

摘要

研究了挤压ZA 2 7合金的组织与性能。压力下凝固

可大大减少ZA 2 7合金的缩松缺陷

提高合金致密度

细化和改善组织

减轻枝晶偏析

使塑性显著提高。抑制α和 β相的分解

尤其是 β相的过饱和是强度提高的主要原因 ;此外

α和 β相的分解也影响着合金的塑韧性

Abstract

The structure and property of squeeze cast ZA 27 alloy were studied. The porosity defect was remarkablly reduced

the soundness increased

the structure refined and improved and the dendritic segregation reduced for ZA 27 alloy with solidification under pressure so that the ductility increased obviously. The α

β phases decomposition suppression

especially the supersaturated β phase

is the main reason for strength improvement. In addition

β phases decomposition also effects on ductility and toughness of this alloy.