Effect of HIP Treatment on Fatigue Notch Sensitivity of Ti-6Al-4V Alloy Fabricated by Electron Beam Melting
来源期刊：Acta Metallurgica Sinica2019年第7期
论文作者：Tao Sun Yan Liu Shu-Jun Li Jian-Ping Li
文章页码：869 - 875
摘 要：The effect of hot isostatic pressing（HIP）treatment on the fatigue notch sensitivity of Ti-6A1-4V alloy fabricated by electron beam melting（EBM）was investigated.The results indicate that the fatigue notch sensitivity of the as-fabricated samples is much lower than that of HIPed samples.The variation of α lamella thickness and the distribution of pore defects have an effect on the fatigue strength in smooth and notched EBM Ti-6A1-4V samples,resulting in the divergence of the as-fabricated and HIPed samples on fatigue notch sensitivity.
Tao Sun，Yan Liu，Shu-Jun Li，Jian-Ping Li
State Key Laboratory of Rolling and Automation,Northeastern UniversityCollege of Mechanical Engineering, Shenyang UniversityTitanium Alloy Laboratory, Institute of Metal Research,Chinese Academy of Sciences
摘 要：The effect of hot isostatic pressing（HIP）treatment on the fatigue notch sensitivity of Ti-6A1-4V alloy fabricated by electron beam melting（EBM）was investigated.The results indicate that the fatigue notch sensitivity of the as-fabricated samples is much lower than that of HIPed samples.The variation of α lamella thickness and the distribution of pore defects have an effect on the fatigue strength in smooth and notched EBM Ti-6A1-4V samples,resulting in the divergence of the as-fabricated and HIPed samples on fatigue notch sensitivity.
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