Investigation on Behavior of Rare Earth Element Cerium in Aluminum-Lithium Alloys by Internal Friction Method

稀有金属（英文版）, 2000, 19(3): 204-209.

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1.Department of Materials Engineering,Taiyuan Heavy Machinery Institute,Taiyuan 030024,China;State Key Laboratory for Mechanical Behavior of Materials,Xi'an Jiaotong University,Xi'an 710049,China

2.College of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an,710072,China

3.Department of Materials Engineering,Taiyuan Heavy Machinery Institute,Taiyuan 030024,China

4.State Key Laboratory for Mechanical Behavior of Materials,Xi'an Jiaotong University,Xi'an 710049,China

Investigation on Behavior of Rare Earth Element Cerium in Aluminum-Lithium Alloys by Internal Friction Method

Keywords： Internal friction

The behavior of rare earth element Ce in 2090 Al-Li alloys was studied by the method of low frequency internal friction.The results showed that rare earth element Ce can increase the activation energy of grain boundary and improve the grain boundary strength of alloys.Rare earth element Ce can decrease the tendency of softening of elastic modulus of 2090 Al-Li alloys after heat cycle and keep high elastic modulus of initial state.

参考文献

[1]	Sanders T H;Starke E A .[J].ACTA MATERIALIA,1982,30(05):927.
[2]	Cheng Zheng;Ni Yongfeng et al.[J].Acta Metallurgica Sinica,1995,31(08):A363.
[3]	Cheng Zheng;He Ming .[J].Rare Earths,1992,13(02):19.
[4]	Ke Tingsui .[J].Physical Review,1947,71(08):533.
[5]	Cai Weiping .[J].Journal of Materials Science,1991,26:527.
[6]	Tan Qi .[J].Ordnance Mater Sci & Eng,1993,16(06):6.
[7]	Ke Tingsui .[J].Physical Review,1947,72(01):41.
[8]	Meng Liang;Zhang Baochang .[J].Acta Metallurgica Sinica,1993,29(10):B439.
[9]	Sun Wei .[J].Rare Earths,1990,11(02):53.
[10]	0Wang Yening;Xu Zhiran et al.[J].Acta Phys Sin,1966,22(06):647.

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Investigation on Behavior of Rare Earth Element Cerium in Aluminum-Lithium Alloys by Internal Friction Method

参考文献