@article{26, author = {Zhongqiang Liu and Zhen Wang and Chaofeng Gao and Ruiping Liu and Xiao Liu and Joseph Sanderson}, title = {Enhanced rolling contact fatigue behavior of selective electron beam melted Ti6Al4V using the ultrasonic surface rolling process}, abstract = {
This paper investigates the influence of building directions and surface rolling processing (USRP) on (RCF) performances of selective melted Ti6Al4V. Results show the RCF performance in the xoz direction is 54% higher than that of the xoy direction due to the poor resistance of the prior-β boundary α layer. The USRP treated samples show ∼ 30% longer than that of untreated samples. The increased RCF performance is attributed to large work hardening, surface nano-crystallization, surface , and the changed condition from to , which suppresses crack initiation and propagation.
}, year = {2022}, journal = {MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING}, volume = {833}, chapter = {142352}, month = { 2022/3/17}, url = {https://www.sciencedirect.com/science/article/pii/S0921509321016166}, doi = {10.1016/j.msea.2021.142352}, }