热处理对电弧增材制造TC4钛合金组织和性能影响的研究进展
Effect of the Heat Treatment on the Microstructures and Properties of TC4 Alloy Fabricated by WAAM
兰中霖 1王玉凤 2尹来胜 3付彬国 4李国禄 1刘金海1
作者信息
- 1. 河北工业大学材料科学与工程学院 河北省新型功能材料重点实验室,天津 300401
- 2. 天津航天机电设备研究所,天津 300301
- 3. 可为智云(天津)科技有限公司,天津 300467
- 4. 河北工业大学材料科学与工程学院 河北省新型功能材料重点实验室,天津 300401;天津航天机电设备研究所,天津 300301
- 折叠
摘要
电弧增材制造(WAAM)TC4钛合金相比传统制造工艺具有成本低,沉积速率高等优势,应用前景广阔.然而电弧沉积过程会使材料微观组织结构不均匀、产生残余应力,造成其力学性能的各向异性,故需采用合适的热处理工艺以消除不利影响、进一步满足使用性能要求.本文综述了近年来国内外关于热处理调控电弧增材制造TC4合金组织性能方面的相关文献,全面分析了热处理对TC4合金等轴晶形成及细化的影响机制,讨论了热处理工艺对TC4合金强度、塑性、硬度、疲劳、抗蠕变等力学性能的影响因素与作用机理,最后对WAAM热处理工艺对调控TC4合金组织和性能的研究进行了展望.
Abstract
Wire arc additive manufacturing(WAAM)of TC4 titanium alloy has the advantages of low cost and high deposition rate compared to traditional manufacturing process,and has broad application prospects.However,the deposition process can cause uneven microstructure and residual stress,resulting in anisotropy of its mechanical properties.Therefore,appropriate heat treatment processes need to be adopted to eliminate adverse effects and further meet the performance requirements.This paper reviews relevant literatures on the effects of heat treatment on the microstructure and properties of TC4 alloy produced by WAAM both domestically and internationally in recent years.It comprehensively analyzes the influence mechanism of heat treatment on the formation and refinement of equiaxed grains in TC4 alloy,and discusses the factors and mechanisms of heat treatment process on the mechanical properties such as strength,ductility,hardness,fatigue,and creep resistance of TC4 alloy.Finally,the research on the regulation of the microstructure and properties of TC4 alloy by WAAM post heat treatment process was prospected.
关键词
电弧增材制造/TC4合金/热处理/微观组织/力学性能Key words
wire arc additive manufacturing/TC4 alloy/heat treatment/microstructure/mechanical property引用本文复制引用
基金项目
天津市技术创新引导专项基金-企业科技特派员项目(22YDTPJC00150)
出版年
2024
国家科技期刊平台
NSTL
万方数据