Open AccessEffect of Three Heat Treatments on High Temperature Oxidation Properties of GH4169 Alloy Produced by SLM Additive Technique
Author(s) -
Xuenan Liu,
Siyuan Liu,
Sengnan Feng,
Huixiang Li,
Yizhe Wang,
Jianhong Gong,
Hui Sun
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/772/1/012076
Subject(s) - superalloy , alloy , materials science , selective laser melting , oxide , metallurgy , melting temperature , matrix (chemical analysis) , composite material , microstructure
In this paper, GH4169 nickel-based superalloy molded samples produced by Selective Laser Melting (SLM) were subjected to aging treatment and solution and aging treatment to study the high temperature oxidation behavior under different heat treatments. It is found that the high temperature oxidation products of GH4169 samples produced by SLM is mainly Cr2O3. The alloy sample under heat treatment has a higher high temperature oxidation rate. The oxide film of GH4169 alloy sample treated by solution and aging treatment has a high forming speed, and the surface of the oxide film is continuous and dense, and the quality is the best, and the protection effect on the alloy matrix is the best.