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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
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- DOI:
- 作者:
- 张增硕 1 ，何生平 2 ，詹 磊 3 ，王新璋 2 ，王贤年 2 ，王依山 1 ，单长智 4 ，郝海 1 ， 4
ZHANG Zengshuo 1 , HE Shengping 2 , ZHAN Lei 3 , WANG Xinzhang 2 , WANG Xiannian 2 , WANG Yishan 1 ,
- 作者单位:
- 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
1. Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China; 2. SDIC Ningxia Qingtongxia New Material Co., Ltd., Qingtongxia 751603, China; 3. SPIC Aluminum & Power Investment Co., Ltd., Yinchuan 750003, China; 4. Ningbo Institute of Dalian University of Technology, Ningbo 315016, China
- 关键词:
- 7050 铝合金；半连续铸造；集成计算材料工程；工艺优化
7050 aluminium alloy; semicontinuous casting; integrated computational materials engineering; process optimization
- 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.