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CREEP FRACTURE OF INTERMETALLIC COMPOUND (Fe_(60)Ni_(40)_3 (V_(98)Ti_2) |
YAO Xuexing;KANG Feiyu;CHEN Nanping Tsinghua University; Beijing |
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Cite this article:
YAO Xuexing;KANG Feiyu;CHEN Nanping Tsinghua University; Beijing. CREEP FRACTURE OF INTERMETALLIC COMPOUND (Fe_(60)Ni_(40)_3 (V_(98)Ti_2). Acta Metall Sin, 1991, 27(4): 67-70.
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Abstract The creep fracture behaviour of intermetallic compound (Fe_(60)Ni_(40))_3(V_(98)Ti_2) hasbeen studied under 187, 200, 215 and 248 MPa at 923 K. The variation of dislocation substruc-ture is observed with TEM in the process of steady-state creep. It is found that there existsa large amount of stacking faults, dislocation pairs and also high density dislocation networks.SEM analysis of section near fracture surface points out that intergranular crack due to coale-scence of small cavities is the main creep fracture mechanism of intermetallic compound(Fe_(60)Ni_(40))_3(V_(98)Ti_2).
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Received: 18 April 1991
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1 Stoloff N S, Davies R G. Prog Mater Sci, 1966; 13(1) : 1 3 蔡泽高,刘以宽,王承忠,郑文龙.金属磨损与断裂.上海:上海交通大学出版社,1985:397 4 Flinn P A. Trans AIME, 1960; 218: 145 5 Ham R K, Cook R H, Purdy G R, Willoughby G. Met Sci J, 1972; 6: 205 6 Liu C T. J Nucl Mater, 1982: 104: 1205 |
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