Microstructural evolution of a graded Nickel-Titanium alloy in laser solid forming

Xiaojing Xu, Xin Lin, Jing Chen, Mocong Yang, Weidong Huang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Laser Solid Forming (LSF) has been considered as a significant and promising technology to fabricate functionally graded materials. A rapidly solidified binary Nickel-Titanium graded material was fabricated by a CO 2 laser solid forming equipment, using argon as the protecting gas. The compositional gradient in the graded alloy was changed from pure Ni to Ni-35at.%Ti in a thin-wall sample with the height of 24 mm. The results of SEM and EDS analysis showed that a series of phase evolutions, γ dendrite+ (γ+γ′) eutectic→ η platelet + (η+Ni 3Ti2) eutectic → (η+Ni3Ti2) eutectic, along the graded direction with the increasing of Ni content. Phase formation and microstructure evolution was analyzed.

Original languageEnglish
Title of host publication3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008 - Conference Proceedings
PublisherLaser Institute of America
Pages292-295
Number of pages4
ISBN (Print)9780912035895
DOIs
StatePublished - 2008
Event3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008 - Beijing, China
Duration: 16 Apr 200818 Apr 2008

Publication series

Name3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008 - Conference Proceedings

Conference

Conference3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008
Country/TerritoryChina
CityBeijing
Period16/04/0818/04/08

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