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| AN INVESTIGATION ON THE THERMAL STABILITY OF Ti-679 ALLOY |
| Zhou Yigang North-West Engineering Institute |
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Cite this article:
Zhou Yigang North-West Engineering Institute. AN INVESTIGATION ON THE THERMAL STABILITY OF Ti-679 ALLOY. Acta Metall Sin, 1980, 16(3): 302-372.
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Abstract The effect of specimen shape, degree of deformation by forging, surface contam-ination of O_2, chemical composition and microstructure on the brittle fracture ofTi-679 alloy subjected to creep test at 450℃ for 100h have been studied. Thethermal stability of the alloy close to α-region was not only related to the alloycomposition, but also to the microstructure formed in the process of deformation.The appearance of the rolled β structure was regarded as the main cause in dete-riorating the thermal stability of this alloy.
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Received: 18 March 1980
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[1] Erdeman, V. J. and Ross, E. W., The Science Technology and Application of Titanium, edited by Jaffee, R. I. and Promisel, N. E., 1970, Pergamon Press, London, p. 829．
[2] Shamblem, C. E. and Redden, T. K., ibid., p. 199．
[3] Coyne, T. E., ibid., p. 97．
[4] Green, T. E. and Minton, C. D. T., ibid., p. 111．
[5] Rosenberg, H. W., ibid., p. 851． |
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