Direct Metal Deposition by Laser in TiNi-Al System for Graded Structure Fabrication

I. Shishkovsky, N. Kakovkina, F. Missemer

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1 Citation (Scopus)

Abstract

Intermetallic phase formation was studied in powdered TiNi-Al system under layerwise laser cladding with the aim of forming a gradient of properties due to a change in the concentration relation of Al in the NiTi powder mixture from one layer to another. The relationship between the laser cladding parameters and the intermetallic phase structures in consecutively cladded layers were determined. The structure of intermetallic compounds formed by laser synthesis was studied by optical microscopy, measurement of microhardness, SEM with EDX analysis. Microhardness doubling from 500 HV to 1000 HV was achieved due to nitinol matrix enrichment by Al, which is promising for aerospace applications.

Original languageEnglish
Article number012016
JournalIOP Conference Series: Materials Science and Engineering
Volume140
Issue number1
DOIs
Publication statusPublished - 8 Aug 2016
Externally publishedYes
EventInternational Seminar on Interdisciplinary Problems in Additive Technologies - Tomsk, Russian Federation
Duration: 16 Dec 201517 Dec 2015

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