挤压铸造ZA-27合金的组织与性能

于海朋; 张富强; 李荣德; 尹井田; 宋长芹; 黄瀛

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挤压铸造ZA-27合金的组织与性能
The Structure and Property of Squeeze Cast ZA 27 Alloy
1997年第4期
纸质出版日期： 1997 ，
DOI：

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[1]于海朋,张富强,李荣德,尹井田,宋长芹,黄瀛.挤压铸造ZA-27合金的组织与性能[J].特种铸造及有色合金,1997(04):11-14.

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, 1997,(4).
[1]于海朋,张富强,李荣德,尹井田,宋长芹,黄瀛.挤压铸造ZA-27合金的组织与性能[J].特种铸造及有色合金,1997(04):11-14. 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, 1997,(4). DOI：

摘要

研究了挤压ＺＡ－２７合金的组织与性能。压力下凝固，可大大减少ＺＡ－２７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.