MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Materials Processing
Formation of NiAl Intermetallic Compound from Powder Mixture of Nickel and Aluminum by Laser Irradiation
Ryo MatsumotoShota KomakiRyohei HomiHiroshi Utsunomiya
Author information
JOURNAL FREE ACCESS FULL-TEXT HTML

2021 Volume 62 Issue 4 Pages 512-518

Details
Abstract

NiAl intermetallic compound was formed by laser irradiation on powder mixture of nickel and aluminum. In laser irradiation with an average energy density of 150 J/mm2 using a continuous wave 50 W Nd:YAG laser, Ni–49 at% Al powder mixture was immediately heated up to a temperature above 1680 K by reaction heat on the interface between nickel and aluminum powders. As the result, the powder mixture was ignited with maximum bulk volume of approximately 1.0 × 104 mm3, and the powder mixture was partly melted. After solidification of the melted part by natural cooling, the formation of NiAl intermetallic compound was confirmed from the results of microscopic observations, hardness measurement, EDX and XRD analyses.

Fullsize Image
Related papers from these authors
© 2021 The Japan Institute of Metals and Materials
Previous article Next article
feedback
Top