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MARTENSITIC TRANSFORMATION IN (Y,Mg)-PSZ CERAMICS |
DAI Zurong;LI Baocheng Taiyuan Institute of Mechanical Engineering; WU Houzheng;CHEN Yuru;LIU Wenxi Tianjin University |
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Cite this article:
DAI Zurong;LI Baocheng Taiyuan Institute of Mechanical Engineering; WU Houzheng;CHEN Yuru;LIU Wenxi Tianjin University. MARTENSITIC TRANSFORMATION IN (Y,Mg)-PSZ CERAMICS. Acta Metall Sin, 1991, 27(3): 86-88.
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Abstract In sita observation under TEM was made of the dynamic process of martensitictransformation in the (Y, Mg)-PSZ ceramics. A group of substructural martensite variantsmay occur priorly under the contact stress between tetragonal ZrO_2 precipitates, the anotherone may be induced by the elastic strain relaxation, and both form (100) twins further. Thecrystallographic aspect of the martensitic transformation was also discussed.
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Received: 18 March 1991
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1 陈玉如,吴厚政,刘文西,沈继耀,袁启明.无机材料学报,1988;3:213-220 2 Garvie R C, Hannink R H, Pascoe R T. Nature, 1975; 258: 703--704 3 Heuer A H. J Am Ceram Soc, 1987; 70: 689--698 4 刘文西,黄孝瑛,陈玉如.材料结构电子显微分析.天津:天津大学出版社,1989 5 徐祖耀,相变原理.北京:科学出版社,1988:450-453O |
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