Microstructural characteristics and unique properties obtained by solution treating or aging in β-rich α+β titanium alloy

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• 作者：Ouchi ; Chiaki ; Fukai ; Hideaki ; Hasegawa ; Kohei
• 关键词：α ; +β ; Titanium alloy ; Stress-induced transformation ; Age-hardening response
• 刊名：Materials Science and Engineering ; A
• 出版年：1999
• 期刊代码：61_09215093
• 类别：ms
• 出版时间：May 15, 1999
• 卷：263
• 期：2
• 页码：132-136
• 文件大小：114 K

摘要

A β-rich α+β titanium alloy, SP-700 with Ti–4.5%Al–3%V–2%Mo–2%Fe exhibits unique properties in as-solution treated condition or upon subsequent aging. Stress-induced transformation and a high value of internal friction were caused by solution treating, and the age-hardening response in SP-700 was largely accelerated compared with other heat treatable titanium alloys. The relationship between these properties and nano-scale microstructure obtained by this heat treatment is discussed.