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熱氫處理對(duì)Ti-60合金組織和性能的影響
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上海高校培養(yǎng)優(yōu)秀青年教師科研專項(xiàng)基金(06XPYQ19)；上海市教委重點(diǎn)學(xué)科(J51402)和校重點(diǎn)學(xué)科(XK0705)項(xiàng)目


Effects of Thermohydrogen Treatment on the Structure and Mechanical Properties of Ti-60 Alloy
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    摘要:

    研究氫在Ti-60合金中的溶解度和氫對(duì)Ti-60合金的顯微組織、(α+β)/β相變點(diǎn)和高溫力學(xué)性能的影響。結(jié)果表明：氫在合金中的溶解熱為–41.9 kJ/mol；隨著氫濃度的增加，Ti-60合金中初生α相的體積分?jǐn)?shù)和(α+β)/β的相變點(diǎn)相應(yīng)降低；同時(shí)，Ti-60合金高溫屈服強(qiáng)度隨氫濃度的增加先降低后升高，并且最低屈服點(diǎn)的氫濃度正好對(duì)應(yīng)于(α+β)/β相變點(diǎn)的氫濃度

    Abstract:

    The solubility of hydrogen in Ti-60 alloy and the effect of hydrogen on the microstructure, (α+β)/β transformation and the mechanical properties of Ti-60 alloy at high temperature have been investigated. The results show that the solution heat of hydrogen in Ti-60 titanium alloy △H is found to be –41.9 kJ/mol. And the volume fraction of primary α and the (α+β)/β transformation temperature is continuously decreased with increasing the hydrogen contents. The results also indicate that the yield strength at high temperature is also continuously decreased with hydrogen concentration, and the minimum yield strength occurs at a concentration corresponding to the (α+β)/β transition

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李 芳,何 佳.熱氫處理對(duì)Ti-60合金組織和性能的影響[J].稀有金屬材料與工程,2009,38(7):1230~1233.[Li Fang, He Jia. Effects of Thermohydrogen Treatment on the Structure and Mechanical Properties of Ti-60 Alloy[J]. Rare Metal Materials and Engineering,2009,38(7):1230~1233.]
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  • 收稿日期:2008-06-24
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