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| SEM AND X-RAY STUDIES ON MECHANICAL ALLOYING |
| by ZHUANG Yi; ZHEN Bingsheng; HAN Linguang; SU Huiqin (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing) (Manuscript received 7 February; 1983; revised manuscript 1 August; 1983) |
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Cite this article:
by ZHUANG Yi; ZHEN Bingsheng; HAN Linguang; SU Huiqin (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing) (Manuscript received 7 February; 1983; revised manuscript 1 August; 1983). SEM AND X-RAY STUDIES ON MECHANICAL ALLOYING. Acta Metall Sin, 1984, 20(2): 176-222.
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Abstract Studies were made of the mechanical alloying of an oxide dispersion strengthened majority γ'-phase Ni-base superalloy by analyses of SEM and X-rays. By a high energy ball milling technique, a mechanical solid-solution may be formed and the mechanical alloying may be realized from various raw metal powders, The CrNi-based masteralloy and elements such as W, Mo, Ta, etc. in the raw metal powders were continually solid-soluble into Ni matrix and the lattice parameter of Ni-base solid-solution was increased with processing time. Simultaneously, nearly random dispersion of the ultraflne oxide particles was obtained in the metal matrix. Although the micro-area compositions of the mechanical solid-solution is segregated, yet it may be improved by certain effective steps. The technical parameters of the mechanical alloying in aUoy studied were also analyzed and discussed.
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Received: 18 February 1984
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1 Benjamin, J. S., Metall. Trans., 1(1970) , 2943．
2 Curwick, C. R., The Mechanical Alloying Process: Powder to Mill Product, Frontiers of High Temperature Materials Conference, Sponsored by Inco Limited, New York, May 18-21, 1981．
3 Benjamin, J. S., Sci. Am., 234(1976) , №5, 40．
4 Morse, J. P.; Benjamin, J. S., Mechanical Alloying, New Trends in Materials Processing, ASM, 1976, p. 165．
5 Nutting, J.; Ubhi, S.; Hughes, T. A., The Development of Microstructure in Incoloy MA 956, Frontiers of High Temperature Materials Conference, Sponsored by Inco Limited, New York, May 18-21, 1981． |
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