Acta Metall Sin  1990, Vol. 26 Issue (4): 79-82    DOI:

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INTERFACE MORPHOLOGIES AND MICROSTRUCTURES DURING DENDRITE-TO-CELL TRANSITION AT HIGH GROWTH RATE

LI Jianguo;MAO Xiemin;FU Hengzhi Northwestern Polytechnical University; Xi'an lecturer;Faculty No.403;Northwestern Polytechnical University; Xi'an 710072

LI Jianguo;MAO Xiemin;FU Hengzhi Northwestern Polytechnical University; Xi'an lecturer;Faculty No.403;Northwestern Polytechnical University; Xi'an 710072. INTERFACE MORPHOLOGIES AND MICROSTRUCTURES DURING DENDRITE-TO-CELL TRANSITION AT HIGH GROWTH RATE. Acta Metall Sin, 1990, 26(4): 79-82.

Abstract References Related Articles Recommended Metrics Download:  PDF(1251KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The interface morphologies and microstructures of the directionally solidifiedNi-5wt-%Cu alloy during the dendrite-to-cell transition at high growth rate have been investi-gated by a newly developed equipment for directional solidification. The results show in thevicinity of dendrite-to-cell transition, the well developed sidebranches become shrivelled withthe increase of growth rate and disappear at the dendrite-to-cell transition, and at the sametime the primary spacing decreases. Moreover, the length of mushy zone decreases greatlyduring the dendrite-to-cell transition. Cells obtained at high growth rate have much in commonwith those at low growth rate, but with much smaller cell spacing. Key words:  cellular growth      interface morphology      primary spacing      rapid solidification      dendrite-to-cell transition      Received:  18 April 1990      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/Y1990/V26/I4/79 1 Mullins W W, Sekerka R F. J Appl Phys, 1964; 35: 444 2 Coriell S R, Sekerka R F. In: Mehrabian R, Kear B H, Cohen M eds., Rapid Solidification Processing Principles and Technologies Ⅱ, Baton Rouge, LA: Claitor's, 1980: 35 3 Boettinger W J, Shectman D, Schaefer R J, Biancaniello F S. Metall Trans, 1984; 15A: 55 4 姜明,黄建国,江晓平,孙晓峰,葛云龙,胡壮麒.材料科学进展,1989;3:348 5 Clayton D N, Hellawell A. In: Solidification, Processing 1987, London: The Institute of Metals, 1988: 156 6 安阁英,刘立新.金属科学与工艺,1985;4(4) :55! [1] LIANG Chen, WANG Xiaojuan, WANG Haipeng. Formation Mechanism of B2 Phase and Micro-Mechanical Property of Rapidly Solidified Ti-Al-Nb Alloy[J]. 金属学报, 2022, 58(9): 1169-1178. [2] Bin ZHAI, Kai ZHOU, Peng Lü, Haipeng WANG. Rapid Solidification of Ti-6Al-4V Alloy Micro-Droplets Under Free Fall Condition[J]. 金属学报, 2018, 54(5): 824-830. [3] Jinfu LI, Yaohe ZHOU. Remelting of Primary Solid in Rapid Solidification of Deeply Undercooled Alloy Melts[J]. 金属学报, 2018, 54(5): 627-636. [4] Guohua WU, Yushi CHEN, Wenjiang DING. Current Research and Future Prospect on Microstructures Controlling of High Performance Magnesium Alloys During Solidification[J]. 金属学报, 2018, 54(5): 637-646. [5] Qianqian GU, Ying RUAN, Haizhe ZHU, Na YAN. Influence of Cooling Rate on Microstructural Formation of Melt-Spun Fe-Al-Nb Ternary Alloy[J]. 金属学报, 2017, 53(6): 641-647. [6] Huogen HUANG,Hongyang XU,Pengguo ZHANG,Yingmin WANG,Haibo KE,Pei ZHANG,Tianwei LIU. U-Cr Binary Alloys with Anomalous Glass-Forming Ability[J]. 金属学报, 2017, 53(2): 233-238. [7] Lei ZHAO,Hongxiang JIANG,Tauseef AHMAD,Jiuzhou ZHAO. STUDY OF SOLIDIFICATION FOR GAS-ATOMIZED DROPLET OF Cu-Co-Fe ALLOY[J]. 金属学报, 2015, 51(7): 883-888. [8] LIU Fenjun, FU Li, ZHANG Wenyuan, MENG Qiang, DONG Chunlin, LUAN Guohong. INTERFACE STRUCTURE AND MECHANICAL PRO-PERTIES OF FRICTION STIR WELDING JOINT OF 2099-T83/2060-T8 DISSIMILAR Al-Li ALLOYS[J]. 金属学报, 2015, 51(3): 281-288. [9] CHEN Feng, SU Dexi, TONG Yunxiang, NIU Liqun,WANG Haibo, LI Li. MICROSTRUCTURE AND PHASE TRANSFORMATION OF Ni43Co7Mn41Sn9 HIGH TEMPERATURE SHAPE MEMORY ALLOY RIBBON[J]. 金属学报, 2013, 49(8): 976-980. [10] LI Xiaofei, GUO Xiping. EUTECTIC MICROSTRUCTURE EVOLUTION OF DIRECTIONALLY SOLIDIFIED Nb-Ti-Si BASE ULTRAHIGH TEMPERATURE ALLOY[J]. 金属学报, 2013, 49(7): 853-862. [11] CHEN Shu, ZHAO Jiuzhou. SOLIDIFICATION OF MONOTECTIC ALLOY UNDER LASER SURFACE TREATMENT CONDITIONS[J]. 金属学报, 2013, 49(5): 537-543. [12] LI Shaoqiang, CHEN Zhiyong, WANG Zhihong, LIU Jianrong, WANG Qingjiang, . MICROSTRUCTURE STUDY OF A RAPID SOLIDIFICATION POWDER METALLURGY HIGH TEMPERATURE TITANIUM ALLOY[J]. 金属学报, 2013, 29(4): 464-474. [13] PENG Dongjian, LIN Xin, ZHANG Yunpeng, GUO Xiong, WANG Meng, HUANG Weidong. INVESTIGATION OF EFFECT OF INTERFACE ENERGY ANISOTROPY ON DENDRITIC GROWTH IN UNIDIRECTIONAL SOLIDIFICATION BY FRONT TRACKING SIMULATION[J]. 金属学报, 2013, 49(3): 365-371. [14] LI Jizhan, FU Ying, JIE Jinchuan, ZHAO Jialei, Joonpyo Park, Jongho Kim,LI Tingju. CONTINUOUS CASTING OF THE CLADDING 3003/4004 ALUMINUM ALLOY CIRCULAR INGOT[J]. 金属学报, 2013, 49(3): 297-302. [15] SHENG Liyuan, ZHANG Wei, LAI Chen, GUO Jianting,XI Tingfei, YE Hengqiang. MICROSTRUCTURE AND MECHANICAL PROPERTIES OF LAVES PHASE STRENGTHENING NiAl BASE COMPOSITE FABRICATED BY RAPID SOLIDIFICATION[J]. 金属学报, 2013, 49(11): 1318-1324. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed