Effect of TiC Particle Size on Processing, Microstructure and Mechanical Properties of an Inconel 718/TiC Composite Material Made by Binder Jetting Additive Manufacturing

被引：6

作者：

Sufiiarov, Vadim ^{[1
]}

Borisov, Artem ^{[1
]}

Popovich, Anatoly ^{[1
]}

Erutin, Danil ^{[1
]}

机构：

[1] Peter the Great St Petersburg Polytech Univ, Inst Mech Engn Mat & Transport, St Petersburg 195251, Russia

来源：

METALS | 2023年 / 13卷 / 07期

关键词：

additive manufacturing; binder jetting; Inconel; 718; TiC; composite material; mechanical properties; HEAT-TREATMENT; DENSIFICATION;

D O I：

10.3390/met13071271

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the effect of TiC particle size on the microstructure and mechanical properties of an Inconel 718/TiC composite material fabricated using binder jetting additive manufacturing was investigated. Vacuum sintering, hot isostatic pressing and heat treatment as post-processing were applied to the samples. The addition of 1 wt% micron-sized TiC to the Inconel 718 matrix resulted in a significant increase in strength and relative elongation during tensile tests at both room temperature and 700 & DEG;C. The distribution of micron-sized TiC particles in the matrix was uniform, and the MC phase precipitated after HT was located along the grain boundaries and near the micron-sized TiC particles, which contributed to the strengthening. The hardness increased insignificantly with the addition of micron-sized TiC. The nano-sized TiC particles added to the matrix were located on the surfaces of the Inconel 718 particles of the initial powders, which obstructed sintering and resulted in a porous structure and, consequently, low mechanical properties.

引用

页数：17

共 35 条

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