个人信息Personal information
- 硕士生导师
- 教师英文名称：Siliang Yan
- 教师拼音名称：yansiliang
- 出生日期：1989-09-02
- 电子邮箱：
- 入职时间：2017-07-01
- 所在单位：材料成型及控制工程系
- 学历：研究生(博士)毕业
- 办公地点：材料楼南附楼413
- 性别：男
- 联系方式：13023059157
- 学位：博士学位
- 职称：副教授
- 在职信息：在职
- 其他任职：安徽省机械工程学会锻压专委会副秘书长
- 毕业院校：西北工业大学
- 所属院系：材料科学与工程学院
- 学科：材料加工工程
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论文成果
Modeling of quasi-trimodal microstructures formation in large-size Ti-alloy parts under near-isothermal local loading forming process
发布时间：2025-01-21 点击次数：
影响因子：6.7
DOI码：10.1016/j.jmatprotec.2021.117327
所属单位：Hefei University of Technology
发表刊物：Journal of Materials Processing Technology
关键字：Ti-alloy microstructure development Near-isothermal forming Thermo-mechanical-microstructural FE modeling
摘要：In near-isothermal local loading forming (NLLF) of large-size Ti-alloy parts, one of the challenging issues is to achieve accurately prediction of complex microstructural development. In this work, a thermo-mechanicalmicrostructural FE model considering complicated phase transformation and morphology transformation of the whole forming process is developed and experimentally verified. The simulated distribution of phase amount for primary α (αp) and secondary α (αs) phases agrees well with the experimental results. Based on the model, the evolution characteristics of αp phase, lamellar αs (αls) phase, and globularized αs (αgs) phase for large-size Ti-alloy parts at different stages were investigated. It is found that αs phase amount in the first loading region is significantly higher than that in the second loading region, while αgsphase amount shows a reverse trend. Moreover, processing parameters including initial heating temperature, die loading speed, and loading pass greatly affect the relative amount and distribution uniformity of constituent phases among different loading regions. Finally, the formation mechanism of quasi-trimodal microstructures under NLLF of complex Ti-alloy parts is clarified by analyzing the coupling effects of applied deformation and phase transformation on the microstructure morphology. To achieve the regulation and control of the tri-modal microstructure, an optimized processing scheme is proposed.
合写作者：K.M. Xue
第一作者：M. Meng
论文类型：期刊论文
通讯作者：S.L. Yan,X.G. Fan
论文编号：117327
学科门类：工学
文献类型：J
卷号：299
期号：-
页面范围：1-29
是否译文：否
发表时间：2022-01-21
收录刊物：SCI、EI
发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0924013621002879?via%3Dihub
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