Abstract

The microstructure characteristics of laser forming repaired (LFR) Ti60 (Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.3Nb) as-deposited and annealed samples are analyzed. The microstructure of as-deposited repaired zone (RZ) consists of epitaxial columnar prior \beta grains, in which fine woven \alpha laths and \beta-phase between \alpha laths exist. The heat-affected zone (HAZ) experiences a continuous microstructural transition from duplex microstructure of the base metal zone (BMZ) to the microstructure of RZ. The presence of silicide precipitates is observed in both RZ and BMZ in an annealed sample by transmission electron microscopy. They are identified as (Ti, Zr)6Si3 distributed mainly at the \alpha/\beta interface with the size of 100-300 nm. The fine \alpha2 precipitates are detected in BMZ by electron diffraction; there was no \alpha2 detected in RZ.

© 2011 Chinese Optics Letters

Microstructural modifications of ceramic waste forms using femtosecond pulse laser

Priyatham Tumurugoti, Braeden M. Clark, and S. K. Sundaram
Opt. Mater. Express 5(12) 2941-2950 (2015)

Machining characteristics of Ti₆Al₄V alloy turning assisted by laser heating and ultrasonic atomization

Yizhong Hu, Jianbing Meng, Zhenwei Hu, Haian Zhou, Xiaosheng Luan, Bingqi Huang, and Xiuting Wei
Appl. Opt. 60(9) 2583-2590 (2021)

Characteristics of laser surface melted aluminum alloys

L. S. Weinman, C. Kim, T. R. Tucker, and E. A. Metzbower
Appl. Opt. 17(6) 906-910 (1978)

Grain size characterization of Ti-6Al-4V titanium alloy based on laser ultrasonic random forest regression

Juhao Zhang, Jinfeng Wu, Anmin Yin, Zhi Xu, Zewen Zhang, Huihui Yu, Yujie Lu, Wenchao Liao, and Lei Zheng
Appl. Opt. 62(3) 735-744 (2023)

Relation between optical scattering, microstructure, and topography of thin silver films. 2: Microstructure

Hugh H. Hurt and Jean M. Bennett
Appl. Opt. 24(16) 2712-2720 (1985)