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TC4鈦合金在甲醇溶液中的應(yīng)力腐蝕敏感性研究
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TG146.23

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Study on Electrochemical Behavior and SCC Susceptibility of TC4 in Methanol Solution
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    摘要:

    采用慢應(yīng)變速率試驗(yàn),輔以掃描電鏡、金相觀察等分析測(cè)試技術(shù),研究了鈦合金TC4在甲醇、鹽酸—甲醇溶液中的應(yīng)力腐蝕敏感性。試驗(yàn)結(jié)果表明,TC4鈦合金在甲醇中具有應(yīng)力腐蝕敏感性。甲醇中加入鹽酸,明顯地提高了TC4的應(yīng)力腐蝕敏感性。TC4鈦合金在鹽酸—甲醇溶液中的應(yīng)力腐蝕裂紋源自點(diǎn)蝕孔底部。

    Abstract:

    Stress corrosion crack (SCC) susceptibility of titanium alloy TC4 in methane and hydrochloric acid methane solution was studied by slow strain rate tensile test (SSRT), SEM analysis and metallography observation. The experimental results show that TC4 is possessed of SCC susceptibility in methanol solution, and addition of methanol solution to hydrochloric acid methanol solution can greatly improved the SCC susceptibility of TC4 alloy. SCC of TC4 in hydrochloric acid mdethanol solution originates from the bottom of the corrosion pits.

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殷京甌 吳蔭順 盧劍 丁寶峰 張琳 曹備. TC4鈦合金在甲醇溶液中的應(yīng)力腐蝕敏感性研究[J].稀有金屬材料與工程,2003,(6):436~439.[Yin Jingou, Wu Yinshun, Lu Jian, Ding Baofeng, Zhang Lin, Cao Bei. Study on Electrochemical Behavior and SCC Susceptibility of TC4 in Methanol Solution[J]. Rare Metal Materials and Engineering,2003,(6):436~439.]
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