集成计算材料工程及其在镁合金铸造和热处理方向上的应用探索  

Integrated Computational Materials Engineering(ICME) and Its Application to Casting and Heat Treatment of Magnesium Alloys

作　　者：韩志强 HAN Zhi-qiang(School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学材料学院,北京100084

出　　处：《铸造》2024年第3期290-302,共13页Foundry

基　　金：北京市自然科学基金-小米创新联合基金资助的项目(L223001);国家自然科学基金联合基金项目(U1737208);国家重点研发计划(2016YFB0701204);国家科技重大专项(2017ZX04006001)。

摘　　要：集成计算材料工程(ICME)是材料开发与应用的革新模式,其定义为计算工具中获取的材料信息与工程产品性能分析和制造过程模拟的集成。自ICME概念提出以来,航空航天、汽车和船舶工业在应用ICME方面取得了显著进展。本文对上述进展进行了比较全面的综述,在此基础上介绍了作者课题组在构建镁合金铸造和热处理ICME框架方面的研究进展,包括镁合金凝固枝晶生长的元胞自动机(CA)和相场(PF)建模、共晶和第二相的X射线断层扫描表征、时效过程析出相的相场建模,以及可用于预测铸态组织晶粒尺寸和第二相体积分数、时效组织中析出相的数量密度、尺寸、体积分数和屈服强度的解析模型。最后对ICME的应用前景进行了展望并提出了建议。Integrated computational materials engineering(ICME),a new paradigm for the global materials profession,is defined as the integration of materials information,captured in computational tools,with engineering product performance analysis and manufacturing process simulation.Since the introduction of the ICME concept,more than a decade has passed and during this period remarkable progress has been made in implementing ICME in aerospace,automotive and maritime industries.This paper provided a comprehensive review on this progress as well as an introduction of the efforts made in the author′s research group to construct an ICME framework for the casting and heat treatment of magnesium alloy,including cellular automaton(CA) and phase field(PF) modeling of the growth of the primary dendrites,X-ray tomographic characterization of the eutectics and secondary phase,PF modeling of the precipitation during aging process,and an analytical model that can be used to predict the grain size and volume fraction of the secondary phase in as-cast microstructure as well as the number density,size,volume fraction of the precipitates in the aged alloy.At the end of this paper,the future prospects and suggestions for promoting the application of ICME are proposed.

关 键 词：集成计算材料工程 镁合金 铸造 热处理 建模仿真 

分 类 号：TG156[金属学及工艺—热处理] TG146.2[金属学及工艺—金属学]