Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第20卷    第z1期    总第1期    2010年10月

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文章编号:1004-0609(2010)S1-s0616-04
固溶时效对TC4ELI钛合金组织和性能的影响
吕逸帆,张  毅,景宝全,吕建军

(中国船舶重工集团公司,洛阳 471039)

摘 要: 研究了固溶时效对TC4ELI钛合金室温拉伸性能、硬度、冲击韧性、断裂韧度及金相组织的影响。结果表明:提高固溶温度、增大固溶冷却速率、降低时效温度可以提高TC4ELI合金的强度;降低固溶温度、减小固溶冷却速率、降低时效温度可以提高TC4ELI合金的冲击韧性和断裂韧度;TC4ELI合金金相组织中片状α相的形貌对合金的冲击韧性和断裂韧度起决定作用。

 

关键字: TC4ELI钛合金;固溶时效;片状α相

Effects of solution treatment on microstructure and
properties of TC4ELI titanium alloy
LÜ Yi-fan, ZHANG Yi, JING Bao-quan, LÜ Jian-jun

Luoyang Ship Material Research Institute, Luoyang 471039, China

Abstract:The effects of solution treatment on room temperature tensile properties, hardness, impact toughness, fracture toughness and metallurgical structure of TC4ELI titanium alloy were studied. The results show that the tensile strength of TC4ELI titanium alloy can be improved by enhancing solution temperature, cooling rate or by reducing aging temperature. The impact toughness and fracture toughness of TC4ELI titanium alloy can be improved by reducing solution temperature, cooling rate or aging temperature. The configuration of lamellar α phase plays a determinated effect on impact toughness and fracture toughness.

 

Key words: TC4ELI titanium alloy; solution treatment; lamellar α phase

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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