Acta Metall Sin  1995, Vol. 31 Issue (1): 19-23    DOI:

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EFFECTS OF WITHDRAWAL RATE ON SOLIDIFICATIONPRECIPITATION AND MICROSTRUCTURE OF SINGLE CRYSTAL Ni-BASE SUPERALLOY

CHENG Guohua; ZHAO Jingchen; SUN Jiahua;(Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing 100081); SHI Zhengxing (Northwestern Polytechnical University; Xi＇an 710072)(Manuscript received 94-01-27; in revised form 94-08-10)

CHENG Guohua; ZHAO Jingchen; SUN Jiahua;(Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing 100081); SHI Zhengxing (Northwestern Polytechnical University; Xi＇an 710072)(Manuscript received 94-01-27; in revised form 94-08-10). EFFECTS OF WITHDRAWAL RATE ON SOLIDIFICATIONPRECIPITATION AND MICROSTRUCTURE OF SINGLE CRYSTAL Ni-BASE SUPERALLOY. Acta Metall Sin, 1995, 31(1): 19-23.

Abstract References Related Articles Recommended Metrics Download:  PDF(441KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The effects of withdrawal rate on liquid / solid interface morphology, primary arm spacing,precipitation behaviour of (γ＋γ＇) eutectic and γ＇particles as well as microstructure of single crystal Ni-base superalloy have been investigated.With the increase of the withdrawal rate,the morphology of liguid/ solid interface transforms from planar into cellular, then coarse dendritic and at last fine dendritic. The primary arm spacing first increases and then decreases, the amount of (γ＋γ＇) eutectic increases, the size of γ＇particles decrease and the shape of γ＇precipitates tends to be regular. During cellular and dendritic solidification, double-peak curves of γ＇size distribution are presented. Correspondent: CHENG Guohua, engineer, Department No.5, Central Iron and Steel Research Institute, Ministry of Metallurgical industry, Beijing 100081 Key words:  withdrawal rate      superalloy      single crystal      liquid/solid interface morphology      microstructure      Received:  18 January 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/I1/19 1HigginbothemGJS．MaterSciTechnol,1986;2:4422ColeGS,CremisioRS．In:SimsCT,HagelWCeds．,TheSuperalloys,NewYork:Wiley,1972:4803SeetharamanV,EshelmanMA．ActaMetall,1988;36:11754肖纪美主编．合金相与相变．北京:冶金工业出版社,1987:1335Lifshite,SlyoeovVV．JPhysChemSolid,1961;19:356WagnerC．ZElectrochem,1961;65:581l [1] BAI Jiaming, LIU Jiantao, JIA Jian, ZHANG Yiwen. Creep Properties and Solute Atomic Segregation of High-W and High-Ta Type Powder Metallurgy Superalloy[J]. 金属学报, 2023, 59(9): 1230-1242. [2] JIANG He, NAI Qiliang, XU Chao, ZHAO Xiao, YAO Zhihao, DONG Jianxin. Sensitive Temperature and Reason of Rapid Fatigue Crack Propagation in Nickel-Based Superalloy[J]. 金属学报, 2023, 59(9): 1190-1200. [3] WANG Lei, LIU Mengya, LIU Yang, SONG Xiu, MENG Fanqiang. Research Progress on Surface Impact Strengthening Mechanisms and Application of Nickel-Based Superalloys[J]. 金属学报, 2023, 59(9): 1173-1189. [4] LI Jiarong, DONG Jianmin, HAN Mei, LIU Shizhong. Effects of Sand Blasting on Surface Integrity and High Cycle Fatigue Properties of DD6 Single Crystal Superalloy[J]. 金属学报, 2023, 59(9): 1201-1208. [5] GONG Shengkai, LIU Yuan, GENG Lilun, RU Yi, ZHAO Wenyue, PEI Yanling, LI Shusuo. Advances in the Regulation and Interfacial Behavior of Coatings/Superalloys[J]. 金属学报, 2023, 59(9): 1097-1108. [6] MA Dexin, ZHAO Yunxing, XU Weitai, WANG Fu. Effect of Gravity on Directionally Solidified Structure of Superalloys[J]. 金属学报, 2023, 59(9): 1279-1290. [7] CHEN Jia, GUO Min, YANG Min, LIU Lin, ZHANG Jun. Effects of W Concentration on Creep Microstructure and Property of Novel Co-Based Superalloys[J]. 金属学报, 2023, 59(9): 1209-1220. [8] BI Zhongnan, QIN Hailong, LIU Pei, SHI Songyi, XIE Jinli, ZHANG Ji. Research Progress Regarding Quantitative Characterization and Control Technology of Residual Stress in Superalloy Forgings[J]. 金属学报, 2023, 59(9): 1144-1158. [9] ZHENG Liang, ZHANG Qiang, LI Zhou, ZHANG Guoqing. Effects of Oxygen Increasing/Decreasing Processes on Surface Characteristics of Superalloy Powders and Properties of Their Bulk Alloy Counterparts: Powders Storage and Degassing[J]. 金属学报, 2023, 59(9): 1265-1278. [10] ZHANG Jian, WANG Li, XIE Guang, WANG Dong, SHEN Jian, LU Yuzhang, HUANG Yaqi, LI Yawei. Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1109-1124. [11] ZHAO Peng, XIE Guang, DUAN Huichao, ZHANG Jian, DU Kui. Recrystallization During Thermo-Mechanical Fatigue of Two High-Generation Ni-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1221-1229. [12] FENG Qiang, LU Song, LI Wendao, ZHANG Xiaorui, LI Longfei, ZOU Min, ZHUANG Xiaoli. Recent Progress in Alloy Design and Creep Mechanism of γ'-Strengthened Co-Based Superalloys[J]. 金属学报, 2023, 59(9): 1125-1143. [13] ZHANG Leilei, CHEN Jingyang, TANG Xin, XIAO Chengbo, ZHANG Mingjun, YANG Qing. Evolution of Microstructures and Mechanical Properties of K439B Superalloy During Long-Term Aging at 800oC[J]. 金属学报, 2023, 59(9): 1253-1264. [14] LU Nannan, GUO Yimo, YANG Shulin, LIANG Jingjing, ZHOU Yizhou, SUN Xiaofeng, LI Jinguo. Formation Mechanisms of Hot Cracks in Laser Additive Repairing Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1243-1252. [15] CHEN Liqing, LI Xing, ZHAO Yang, WANG Shuai, FENG Yang. Overview of Research and Development of High-Manganese Damping Steel with Integrated Structure and Function[J]. 金属学报, 2023, 59(8): 1015-1026. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed