铝基四元合金枝晶组织及微观偏析的数值模拟.pdfVIP

44 10 Vol.44 No.10 2008 10 1175—1182 ACTA METALLURGICA SINICA Oct. 2008 pp.1175–1182 ∗ Æ (, 211189) (CompuTherm LLC, Madison WI 53719, USA) (Center for Computer–Aided Materials Processing (CAMP), Department of Metallurgical Engineering, Yonsei University, Seoul 120–749, Korea) (CA) (PanEngine) , . , CA . / Æ, / Gibbs–Thomson . / , PanEngine /. , CA PanEngine . Al–4.5Cu–0.5Mg–1Si(, %) Scheil , , , . , , PanEngine, , , TG244 A 0412−1961(2008)10−1175−08 MODELING OF DENDRITIC STRUCTURE AND MICROSEGREGATION IN Al–RICH QUATERNARY ALLOYS DAI Ting, ZHU Mingfang Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189 CHEN Shuanglin, CAO Weisheng CompuTherm LLC, Madison WI 53719, USA HONG Chunpyo Center for Computer–Aided Materials Processing (CAMP), Department of Metallurgical Engineering, Yonsei University, Seoul 120–749, Korea Correspondent: DAI Ting, associate professor, Tel: (025 E-mail: daiting@seu.edu.cn Supported by National Natural Science Foundation of China (No, Natural Science Foun- dation of Jiangsu Province (No.BK2006105) and Specialized Research Fund for the Doctoral Program of Higher Education (No.20070286021) Manuscript received 2008–02–18, in revised form 2008–07–14 ABSTRACT A two–dimensional (2–D) coupled cellular automaton (CA)–PanEngine model was developed for the simulation of dendritic growth and microsegrega