3D stress simulation and parameter design during twin-roll casting of 304 stainless steel based on the Anand model

作     者：Jing Guo Yuan-yuan Liu Li-gang Liu Yue Zhang Qing-xiang Yang 

作者机构：State Key Laboratory of Metastable Materials Science & TechnologyYanshan University Nanjing Iron & Steel Co. School of Material Science and EngineeringUniversity of Science and Technology Beijing 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2014年第21卷第7期

页      面：666-673页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：projects supported by Natural Science Foundation of Hebei Province China(E2012203019) 

主　　题：stainless steel strip metal roll casting stress surface cracks numerical analysis 

摘      要：This study first investigated cracks on the surface of an actual steel strip. Formulating the Anand model in ANSYS software, we then simulated the stress field in the molten pool of type 304 stainless steel during the twin-roll casting process. Parameters affecting the stress distribution in the molten pool were analyzed in detail and optimized. After twin-roll casting, a large number of transgranular and intergranular cracks resided on the surface of the thin steel strip, and followed a tortuous path. In the molten pool, stress was enhanced at the exit and at the roller contact positions. The stress at the exit decreased with increasing casting speed and pouring temperature. To ensure high quality of the fabricated strips, the casting speed and pouring temperature should be controlled above 0.7 m/s and 1520℃, respectively.