Acta Metall Sin  1996, Vol. 32 Issue (9): 971-979    DOI:

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RHYOLOGIC BEHAVIOR OF ZA27 ALLOY IN QUASI-SOLID STATE AND ITS EFFECT ON THE FEEDING QUALITY DURING UPCC

ZHU Yuefeng (Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)ZENG Daben; HUANG Huisong; WU Dehai (Department of Mechanical Engineering; Tsinghua University; Beijing 100084)

ZHU Yuefeng (Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)ZENG Daben; HUANG Huisong; WU Dehai (Department of Mechanical Engineering; Tsinghua University; Beijing 100084). RHYOLOGIC BEHAVIOR OF ZA27 ALLOY IN QUASI-SOLID STATE AND ITS EFFECT ON THE FEEDING QUALITY DURING UPCC. Acta Metall Sin, 1996, 32(9): 971-979.

Abstract References Related Articles Recommended Metrics Download:  PDF(477KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The rhyologic behaviors of the alloy ZA27 in the range of 385-390℃ and 400 -430℃ can be described by six element and five element model respectively. Based on these models, the stress-strain equations were deduced, and the creep, reverse creep, loading, and unloading characteristics were discussed. Rhyologic parameters of the alloy at different temperatures were calculated from the experimental results. According to the phase diagram and DTA curves, the stagnant temperatures for the mass feeding and interdendritic feeding during the solidification process of the alloy were determined as 420℃ and 390℃ respectively. By analysing the feeding conditions of upward continuous casting (UPCC) ZA27 alloy, a steady working condition was proposed under which the internal quality of the strand can be assured during UPCC. Key words:  ZA27 alloy      quasi-solid state      rhyology      upward continuous casting(UPCC)      feeding      Received:  18 September 1996      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/Y1996/V32/I9/971 1GervaisE,LevertH,BessMTransAmFoundrymen'sSoc,1980;88:1832胡塞育．机械工程材料,1988;(4):42SkenaziAF,PelerinJ,CoutiouradisD,MagnusB,MecusM．Metall,1983;37(9):8984BarnhurstRJ,GervaisE．TransAmFoundrymen'sSoc,1985;93:5915McDonaghP．Metallurgia,1985;52(6):2416LohikoskiT,LohikoskiM．Metall,1989;43(6):5317林柏年．铸造流变学．哈尔滨:哈尔滨工业大学出版社,1991:1088GebhardtE．ZMetallk,1949;40:136 [1] Zhiming GAO, Wanqi JIE, Yongqin LIU, Haijun LUO. Formation Mechanism and Coupling Prediction of Microporosity and Inverse Segregation: A Review[J]. 金属学报, 2018, 54(5): 717-726. [2] Longfei CHEN,Yikun LUAN,Dianzhong LI,Yiyi LI. SOLID FEEDING MECHANISM AND ITS APPLICA-TION ON CASTINGS WITH LARGE HEIGHT-TO-DIAMETER RATIO[J]. 金属学报, 2016, 52(12): 1510-1516. [3] LI Weibiao; WANG Fang; QI Fengsheng; LI Baokuan. Mathematical Model on Steel Strip--Feeding of Mold in Continuous Casting Process[J]. 金属学报, 2007, 43(11): 1191-1194 . [4] Tongmin Wang. MODELLING THE THERMO-SOLUTAL CONVECTION, SHRINKAGE FLOW AND GRAIN MOVEMENT DURING GLOBULAR EQUIAXED SOLIDIFICATION IN A MULTI-PHASE SYSTEM I.THREE-PHASE MODEL[J]. 金属学报, 2006, 42(6): 584-590 . No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed