Acta Metall Sin  1995, Vol. 31 Issue (7): 320-328    DOI:

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EFFECT OF MINOR ELEMENTS ON MICROSTRUCTURE AND PROPERTIES IN A COBALT-BASE SUPERALLOY

YAO Xianedong;ZHANG Jinghua;ZHANG Zhiya;LI Ying'ao;ZHAO Nairen;GUAN Hengrong;HU Zhuangqi(Institute of Metal Resecech;Chinese Academy of Sciences;Shenyang 110015)(Manuscript received 1994-06-06;in revised form 1995-02-26)

YAO Xianedong;ZHANG Jinghua;ZHANG Zhiya;LI Ying'ao;ZHAO Nairen;GUAN Hengrong;HU Zhuangqi(Institute of Metal Resecech;Chinese Academy of Sciences;Shenyang 110015)(Manuscript received 1994-06-06;in revised form 1995-02-26). EFFECT OF MINOR ELEMENTS ON MICROSTRUCTURE AND PROPERTIES IN A COBALT-BASE SUPERALLOY. Acta Metall Sin, 1995, 31(7): 320-328.

Abstract References Related Articles Recommended Metrics Download:  PDF(867KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Experimental studies on effects of minor elements in a cobalt-base superalloy have been carried out to develop newer high-strengh one.It is found that the high temperature stress-rupture properties increase very rapidly with C or B and the mutual effect is shown obviously between them.But Al weatens the properties and Zr has no obvious effects.Compared with X40 alloy,the stress-rupture life of the new alloy can prolong 6 to 8times and the availabe temperature can raise 45℃.Two carbide strengthening machanisms seem to be carbide beazing capacity and precipitate strenghening.The variations of alloy properties result in the changing of the carbide transformation temperature as well as content.type,distribution and morphology of carbide induced by miner dements.Correspondent.YAO Xiangdong,(Institute of Metal Research,Chinese Academy of Sciences.Shenyang 110015) Key words:  unidirectional solidification      Co-base superalloy      carbide strengthening mechanism      Received:  18 July 1995      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1995/V31/I7/320 1胡壮麒,张济山,唐亚俊,张静华,朱洪群．材料工程,航空材料工程文集(第2集)．1992;7-9:952ZhuYX,ZhangSN,ZhangTX,ZhangJH,TongYJ,HuzQ．In:AntolovichSDetal．eds．．TMS,Pettsbufgh,1992:1453HoltRT．WallaceW．IntMetRev,976;21(3):14WoodAO．ICMS．1979:2:335DavinA．Cobalt．1974:21:326FukuiY．MetallTrans,1981:12A:10337ZhangJS,TangYJ,ZhangJH,HuZQ．tobepublished8姚向东,张静华,张志亚,李英敖,赵乃仁,管恒荣,胡壮麒,待发表 [1] YANG Qianqian, LIU Yuan, LI Yanxiang. 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