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author:

黄胜 (黄胜.) [1] | 陈晓 (陈晓.) [2] (Scholars:陈晓) | 陈淑婉 (陈淑婉.) [3]

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Abstract:

采用约束棒法评定不同浇注温度下Al-7Zn-2.5Mg-Cu合金的热裂倾向,采用OM观察了合金的显微组织.结果表明,不同浇注温度下,合金的显微组织均为等轴晶结构.随着浇注温度升高,合金的晶粒粗化,晶间共晶数量减少,且由连续分布逐渐转变成半连续分布,热裂倾向增大.但浇注温度为680℃时,合金出现浇不足缺陷.在保证该合金充型能力的前提下,降低浇注温度是减少其热裂倾向的有效途径.

Keyword:

Al-Zn-Mg-Cu合金 显微组织 浇注温度 热裂

Community:

  • [ 1 ] [黄胜]运城学院
  • [ 2 ] [陈晓]福州大学
  • [ 3 ] [陈淑婉]运城学院

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Source :

铸造技术

ISSN: 1000-8365

CN: 61-1134/TG

Year: 2013

Issue: 1

Volume: 34

Page: 72-75

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 0

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