基于集成计算平台的高强韧铝合金半连铸工艺优化  

Optimization of a High-strength and Toughness Aluminium Alloy Semi-continuous Casting Process Based on an Integrated Computing Platform

作　　者：张增硕 何生平 詹磊 王新璋 王贤年 王依山 单长智 郝海[1,4] ZHANG Zengshuo;HE Shengping;ZHAN Lei;WANG Xinzhang;WANG Xiannian;WANG Yishan;SHAN Changzhi;HAO Hai(Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province),School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,China;SDIC Ningxia Qingtongxia New Material Co.,Ltd.,Qingtongxia 751603,China;SPIC Aluminum&Power Investment Co.,Ltd.,Yinchuan 750003,China;Ningbo Institute of Dalian University of Technology,Ningbo 315016,China)

机构地区：[1]大连理工大学材料学院辽宁省凝固控制与数字化制备技术重点实验室,辽宁大连116024 [2]国电投宁夏青铜峡新材料有限公司,宁夏青铜峡751603 [3]国家电投集团铝电投资有限公司,宁夏银川750003 [4]大连理工大学宁波研究院,浙江宁波315016

出　　处：《铸造技术》2024年第5期479-486,共8页Foundry Technology

基　　金：国家自然科学基金面上项目(52171030);校企合作项目(GDTXCL-QYGL-kjcx-2022-002)。

摘　　要：基于集成计算材料工程(ICME)思想,使用数字化集成计算平台依托ProCAST仿真模拟软件、MATLAB数值分析软件,并使用最优化方法中序列(逐步)二次规划法(SQP),优化了半连续铸造制备直径254 mm的7050铝合金圆锭工艺,得到较优铸造温度为690℃,所得铸锭的残余应力值最小。与传统优化方式,即逐步调整工艺参数并分析模拟结果的方法相比,数字化集成平台迭代进行工艺寻优的效率提高了1倍。在此优化工艺下得到铸锭的屈服强度为218 MPa,抗拉强度为336 MPa。Based on the idea of integrated computational materials engineering(ICME),the process of preparing 7050 aluminium alloy ingots with a diameter of 254 mm by semi-continuous casting was optimized by using a digital integrated computing platform,ProCAST simulation software and MATLAB numerical analysis software,and the sequential(step by step)quadratic programming method(SQP)as the optimization method.The optimum casting temperature is 690℃,at which the residual stress in the ingot is the lowest.Compared with the traditional optimization method of adjusting the process parameters step by step and analysing the simulation results,the efficiency of the digital integrated platform for iterative process optimization is doubled.The yield strength and tensile strength of the ingot are 218 and 336 MPa,respectively.

关 键 词：7050铝合金 半连续铸造 集成计算材料工程 工艺优化 

分 类 号：TG146.21[一般工业技术—材料科学与工程]