通过Gleeble热模拟实验,测绘Ti-55钛合金的连续冷却转变曲线(CCT图).结果表明:当冷速由0.1 ℃/s加快到150 ℃/s时,Ti-55钛合金中主要发生β→α与β→α′的相转变过程,其中β→α′转变开始的临界冷速为5 ℃/s左右,Ti-55钛合金中马氏体转变开始温度为855 ℃,转变结束温度为818 ℃.
参考文献
| [1] | BAESLACK Ш W A;BECKER D W;FROES F H .Advances in titanium alloy welding metallurgy[J].Journal of Metals,1984,36:46-58. |
| [2] | MITCHELL D R;TUCKER T J .The properties and transformation characteristics in welds in Ti-6Al-2Sn-4Zr-2Mo titanium alloy[J].Welding Journal,1969,48:23s-33s. |
| [3] | BAESLACK Ш W A;MULLINS F D .Cooling rate effects in Ti-6Al-2Sn-4Zr-2Mo weldments[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1984,15:1948-1952. |
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