| Improving hot deformability of TiAl alloys by minor additions of Ni and Mg |
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| 作者姓名： | 苏曦 张继 李世琼 仲增墉 |
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| 作者单位： | CentralIron＆SteelResearchInstitute,Beijing100081,China |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＴｉＡｌａｌｌｏｙｓａｒｅｐｏｔｅｎｔｉａｌａｅｒｏｓｐａｃｅｅｎｇｉｎｅｍａｔｅｒｉ ａｌｓｂｅｃａｕｓｅｏｆｔｈｅｉｒｌｏｗｄｅｎｓｉｔｙａｎｄｈｉｇｈｐｅｒｆｏｒｍａｎｃｅａｔｅｌｅｖａｔｅｄｔｅｍｐｅｒａｔｕｒｅ1] .Ｓｅ
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| 关 键 词： | TiAl合金 热塑性 微合金化 铌 镁 |
Improving hot deformability of TiAl alloys by minor additions of Ni and Mg |
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| SU Xi,ZHANG Ji,LI Shi qiong,ZHONG Zeng yong.Improving hot deformability of TiAl alloys by minor additions of Ni and Mg[J].Transactions of Nonferrous Metals Society of China,2002,12(4):639-642. |
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| Authors: | SU Xi ZHANG Ji LI Shi qiong ZHONG Zeng yong |
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| Abstract: | In order to develop feasible hot processing technologies, hot workability of TiAl alloys need to be improved. The hot deformabili ty of tested alloys, Ti-46.5Al-2.5V-1.0Cr and Ti-46.3Al-2.5V-1.0Cr-(0.3～0.5)Ni-(0.01)Mg (mo le fraction, %), was evaluated by hot compression tests over the temperature ran ge from 950 to 1050 ℃ and strain rate range from 0.01 to 1.0 s-1. It was found that the hot deform ability of TiAl alloys was obviously improved by minor additions of Ni and Mg. |
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| Keywords: | TiAl alloys hot deformability microalloying nickel magnesium |
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