Gradient Microstructure, Mechanical Properties and Phase Composition of Ni-Cr-Fe Alloy under Additive Manufacturing Process

被引：0
|
作者：
Rashkovets, M., V [1 ]
Nikulina, A. A. [1 ]
Klimova-Korsmik, O. G. [2 ,3 ]
Kislov, N. G. [2 ,3 ]
Matts, O. E. [1 ]
机构：
[1] Novosibirsk State Tech Univ, Novosibirsk 630073, Russia
[2] St Petersburg State Marine Tech Univ, St Petersburg 190121, Russia
[3] Peter Great St Petersburg Polytech Univ, St Petersburg 195251, Russia
来源：
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY | 2020年 / 2310卷
关键词：
D O I：
10.1063/5.0034445
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The present study is about 52Ni-19.2Cr-18.7Fe-5.5Nb alloy formed by additive manufacturing process of High-speed direct laser deposition. The microstructure and phase composition were studied with optical microscopy and TEM. Three different areas of deposited layers are presented by columnar dendrite grains, equiaxed structure, and dendrite grains with secondary arm spacing. The increase in heat input showed a slightly improved in average microhardness of the deposited samples. The results of TEM study showed the presence of different Laves phase morphologies depending on heat input.
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页数：5
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