[1]袁广银,张为民,孙扬善.Mg-Al基合金加铋合金化对其力学性能的改善作用[J].东南大学学报(自然科学版),1999,29(3):115-119.[doi:10.3969/j.issn.1001-0505.1999.03.022]
 Yuan Guangyin,Zhang Weiming,Sun Yangshan.Effect of Bismuth Addition on the Mechanical Properties of Mg-Al Based Alloys[J].Journal of Southeast University (Natural Science Edition),1999,29(3):115-119.[doi:10.3969/j.issn.1001-0505.1999.03.022]
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Mg-Al基合金加铋合金化对其力学性能的改善作用()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
29
期数:
1999年第3期
页码:
115-119
栏目:
材料科学与工程
出版日期:
1999-05-20

文章信息/Info

Title:
Effect of Bismuth Addition on the Mechanical Properties of Mg-Al Based Alloys
作者:
袁广银 张为民 孙扬善
东南大学材料科学与工程系, 南京 210096
Author(s):
Yuan Guangyin Zhang Weiming Sun Yangshan
Department of Material Scrence and Engineering. Southeast University, Nanjing 210096
关键词:
Mg-Al-Zn 力学性能 蠕变
Keywords:
Mg-Al-Zn mechanical properties creep
分类号:
TG146.22
DOI:
10.3969/j.issn.1001-0505.1999.03.022
摘要:
研究了合金元素Bi对Mg-9Al-0.8Zn(AZ91)基合金显微组织和力学性能的影响,结果表明Bi质量分数超过0.5%时,基体中有富Bi的第二相颗粒形成,并随着Bi加入量的增多而增加,该颗粒相具有六方D52结构,热稳定性较高,适量Bi的加入改善了合金的铸态组织,提高了合金的室温和高温强度,改善了抗蠕变性能,而塑性有所降低.
Abstract:
Effects of bismuth additions on the mechanical properties of Mg-9Al-0.8Zn(AZ91) alloys were studied. Results show that bismuth additions exceeded 0.5% to AZ91 alloys caused the formation of Mg3Bi2 precipitates with hexagonal D52 structure which strengthened the AZ91 alloy at both ambient and elevated temperatures so that the tensile strength and creep resistance were significantly improved.

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备注/Memo

备注/Memo:
基金项目: 江苏省科委科技发展计划资助项目(BJ97020).
第一作者:男,1970年生,博士研究生.
更新日期/Last Update: 1999-05-20