Acta Metall Sin  1995, Vol. 31 Issue (11): 494-500    DOI:

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STRUCTURE CHANGES OF DIRECTIONALLY SOLIDIFIED EUTECTIC Pb-Sn ALLOY UNDER VARYING GROWTH VELOCITY

XU Daming;CAO Fuyang;LI Qingchun(Harbin Institute of Technology;Harbin 150001)(Manuscript received 1994-12-19;in revised form 1995-06-19)

XU Daming;CAO Fuyang;LI Qingchun(Harbin Institute of Technology;Harbin 150001)(Manuscript received 1994-12-19;in revised form 1995-06-19). STRUCTURE CHANGES OF DIRECTIONALLY SOLIDIFIED EUTECTIC Pb-Sn ALLOY UNDER VARYING GROWTH VELOCITY. Acta Metall Sin, 1995, 31(11): 494-500.

Abstract References Related Articles Recommended Metrics Download:  PDF(547KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The structure variety of directionally solidified eutectic Pb-Sn alloy under step and linear change of specimen displacement velocity was experimentally observed.The experiments were conducted on a directional solidification apparatus with an electronic varying velocity programmer for specimen displacement,which was designed and constructed by the authors.The experimental results show that,when the eutectic specimen moves with a slow and linear increase or decrease in velocity,the average laminar spacing of the directionally grown eutectic changes through progressive branching or merging of the eutectic laminae of both the two phases.The variation curves of the eutectic growth rates are approximately symmetric for the increase and decrease in the displacement velocity at the same acceleration. Key words:  eutectic growth      directional solidification      eutectic structure      Pb-Sn alloy      Received:  18 November 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/I11/494 1KurzW,SahmPR著,李新立译．定向凝固共晶材料．北京:冶金工业出版社,1989:172胡汉起．金属凝固原理．北京:机械工业出版社,1991:1683KraftRW,AlbrightDL．TMSAIME,1961;221:954HuntJD,ChiltonJP．InstMet,1963-64;92:215DaviesVL．JInstMet,1964-65;93:106JacksonKA,HuntJD．TMSAIME,1966;236:1129,8437MollardFR,FlemingsMC．TMSAIME,1967;239:1526,15348HuntJD,HurteDTJ．TMSAIME,1968;242:10439FisherDJ,KurzW．ActaMetall,1980;28:77710徐达鸣,李庆春．金属科学与工艺,1988;7(3):4711徐达鸣．哈尔滨工业大学硕士学位论文,哈尔滨,198412曹福洋．哈尔滨工业大学硕士学位论文,哈尔滨,1994 [1] 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. [2] 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. [3] MIAO Junwei, WANG Mingliang, ZHANG Aijun, LU Yiping, WANG Tongmin, LI Tingju. Tribological Properties and Wear Mechanism of AlCr1.3TiNi2 Eutectic High-Entropy Alloy at Elevated Temperature[J]. 金属学报, 2023, 59(2): 267-276. [4] SU Zhenqi, ZHANG Congjiang, YUAN Xiaotan, HU Xingjin, LU Keke, REN Weili, DING Biao, ZHENG Tianxiang, SHEN Zhe, ZHONG Yunbo, WANG Hui, WANG Qiuliang. Formation and Evolution of Stray Grains on Remelted Interface in the Seed Crystal During the Directional Solidification of Single-Crystal Superalloys Assisted by Vertical Static Magnetic Field[J]. 金属学报, 2023, 59(12): 1568-1580. [5] LI Yanqiang, ZHAO Jiuzhou, JIANG Hongxiang, HE Jie. Microstructure Formation in Directionally Solidified Pb-Al Alloy[J]. 金属学报, 2022, 58(8): 1072-1082. [6] CHEN Ruirun, CHEN Dezhi, WANG Qi, WANG Shu, ZHOU Zhecheng, DING Hongsheng, FU Hengzhi. Research Progress on Nb-Si Base Ultrahigh Temperature Alloys and Directional Solidification Technology[J]. 金属学报, 2021, 57(9): 1141-1154. [7] XU Junfeng, ZHANG Baodong, Peter K Galenko. Model of Eutectic Transformation Involving Intermetallic Compound[J]. 金属学报, 2021, 57(10): 1320-1332. [8] HE Siliang, ZHAO Yunsong, LU Fan, ZHANG Jian, LI Longfei, FENG Qiang. Effects of Hot Isostatic Pressure on Microdefects and Stress Rupture Life of Second-Generation Nickel-Based Single Crystal Superalloy in As-Cast and As-Solid-Solution States[J]. 金属学报, 2020, 56(9): 1195-1205. [9] ZHANG Xiaoli, FENG Li, YANG Yanhong, ZHOU Yizhou, LIU Guiqun. Influence of Secondary Orientation on Competitive Grain Growth of Nickel-Based Superalloys[J]. 金属学报, 2020, 56(7): 969-978. [10] XU Qingyan,YANG Cong,YAN Xuewei,LIU Baicheng. Development of Numerical Simulation in Nickel-Based Superalloy Turbine Blade Directional Solidification[J]. 金属学报, 2019, 55(9): 1175-1184. [11] ZHANG Jian,WANG Li,WANG Dong,XIE Guang,LU Yuzhang,SHEN Jian,LOU Langhong. Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys[J]. 金属学报, 2019, 55(9): 1077-1094. [12] Hui FANG,Hua XUE,Qianyu TANG,Qingyu ZHANG,Shiyan PAN,Mingfang ZHU. Dendrite Coarsening and Secondary Arm Migration in the Mushy Zone During Directional Solidification:[J]. 金属学报, 2019, 55(5): 664-672. [13] Yan YANG, Guangyu YANG, Shifeng LUO, Lei XIAO, Wanqi JIE. Microstructures and Growth Orientation of Directionally Solidification Mg-14.61Gd Alloy[J]. 金属学报, 2019, 55(2): 202-212. [14] JIN Hao, JIA Qing, LIU Ronghua, XIAN Quangang, CUI Yuyou, XU Dongsheng, YANG Rui. Seed Preparation and Orientation Control of PST Crystals of Ti-47Al Alloy[J]. 金属学报, 2019, 55(12): 1519-1526. [15] Lin LIU, Dejian SUN, Taiwen HUANG, Yanbin ZHANG, Yafeng LI, Jun ZHANG, Hengzhi FU. Directional Solidification Under High Thermal Gradient and Its Application in Superalloys Processing[J]. 金属学报, 2018, 54(5): 615-626. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed