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| A STUDY OF ZIGZAG GRAIN BOUNDARY IN HIGH ALLOYED WROUGHT NICKEL-BASE SUPERALLOY |
| by ZHONG Zengyong; MA Peili; CHEN Gansheng (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing); ZHANG Junming; LI Fengzhou; TIAN Shushen (Fushun Steel Works) |
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Cite this article:
by ZHONG Zengyong; MA Peili; CHEN Gansheng (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing); ZHANG Junming; LI Fengzhou; TIAN Shushen (Fushun Steel Works). A STUDY OF ZIGZAG GRAIN BOUNDARY IN HIGH ALLOYED WROUGHT NICKEL-BASE SUPERALLOY. Acta Metall Sin, 1983, 19(3): 54-154.
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Abstract The formation of zigzag grain boundary and its influence upon mechanical properties in nickel-base wrought superalloy with high γ′-phase content has been investigated. It was shown that the γ′-phase precipitation at the grain boundary during controlled cooling after solid solution treatment is the dominant factor for the formation of zigzag grain boundary and the grain boundary γ′-particles are coherent with the one of neighbouring grains and incoherent with the others. Thus, a model of the formation of zigzag grain boundary was proposed. Factors influencing the crookin8 of grain boundary have been also studied.
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Received: 18 March 1983
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1 Decker, R. F., Climax Molybdenum Company Symposium, Zurich 1969, p. 165．
2 Decker, R. F.; Sims, C. T., The Superalloys, Eds. Sims, C. T.; Hagel, W. C., John Wiley & Sons, 1972, p. 33．
3 Miyagawa, O.; Yamamoto, M.; Kobayshi, M., Superalloys: Metallurgy and Manufacture, Proc. of 3rd Int. Symp. on Superalloys, Eds. Kear, B. H.; Muzyka, D. R.; Tien, J. K. et al., Claitot's Publ., Baton Rouge, Louisiana, 1976, p. 245．
4 British Standard, BS HR 4, (1972) .
5 仲增墉,镍铬钴基变形高温合金中弯曲晶界的研究,钢铁研究总院,1980年学术年会论文摘要(下),p.165．
6 Lorson, J. N.; Floreen, S. F., Metall. Trans., 8A (1977) , 51．
7 #12b |
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