铸造技术2017，Vol.38Issue(11)：2744-2746,3.DOI:10.16410/j.issn1000-8365.2017.11.051
超声冲击处理对TC4钛合金焊接试样微观组织及力学性能的影响
Effect of Ultrasonic Impact Treatment on Microstructure and Mechanical Properties of TC4 Welding Titanium Alloy Specimens
摘要
Abstract
Ultrasonic impact was taken to treat the welding joints for TC4 titanium alloy,and the stress distribution and microstructure of welding joints were studied.The results show that a dense reinforcement layer thickness is about 80～120 μm.The length and quantity of fatigue crack are decreased,and the fatigue properties and the corrosion resistance of the welding joints is improved,and the defects of welding as pore and shrinkage is decreasing.The tensile stress is transformed into a compressive stress and a favorable compressive stress layer is formed.The welding hardness increases and the distribution is more uniform,and the mechanical properties are improved.关键词
TC4钛合金/超声冲击/力学性能/显微组织Key words
TC4 titanium alloy/ultrasonic impact/mechanical property/microstructure分类
矿业与冶金引用本文复制引用
刘德波,张劲松,孔令云,鹿海艳..超声冲击处理对TC4钛合金焊接试样微观组织及力学性能的影响[J].铸造技术,2017,38(11):2744-2746,3.基金项目
河南省郑州市工业机器人视觉及其控制重点实验室支持项目(121PYFZX179) （121PYFZX179）
