当前位置: X-MOL 学术Mater. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of laser surface re-melting on the microstructure and properties of Zr alloy
Materials Letters ( IF 3 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.matlet.2020.127352
P.F. Ji , B. Li , S.G. Liu , B.H. Chen , X.Y. Zhang , M.Z. Ma , R.P. Liu

Abstract The effects of laser surface re-melting (LSR) on the mechanical and corrosion properties of Zr-5Ti are investigated. After LSR, the microstructure of the alloy-surface has a finer phase-structure and higher density of grain boundaries. Furthermore, the surface hardness of the Zr-5Ti alloy improves significantly due to grain refinement. With increasing distance from the surface, the hardness decreases gradually because the laths coarsen gradually. Corrosion resistance after LSR also clearly improves due to grain refinement, which also reduces the pitting corrosion sensitivity of the alloy. The generated passivation film of the laser-treated alloy and substrate is also analyzed in this paper using X-photoelectron spectroscopy.

中文翻译:

激光表面重熔对Zr合金组织和性能的影响

摘要 研究了激光表面重熔(LSR) 对Zr-5Ti 力学性能和腐蚀性能的影响。LSR后,合金表面的显微组织具有更细的相结构和更高的晶界密度。此外,由于晶粒细化,Zr-5Ti 合金的表面硬度显着提高。随着距表面距离的增加,硬度逐渐降低,因为板条逐渐变粗。由于晶粒细化,LSR 后的耐腐蚀性也明显提高,这也降低了合金的点蚀敏感性。本文还使用 X 光电子能谱分析了激光处理的合金和基材的钝化膜。
更新日期:2020-04-01
down
wechat
bug