Strength Enhancement of Laser Powder Bed Fusion 316L by Addition of Nano TiC Particles

被引：1

作者：

Liu, Yanyan ^{[1
]}

Xie, Deqiao ^{[2
]}

Lv, Fei ^{[3
]}

机构：

[1] Nanjing Univ Sci & Technol, Coll Intelligent Mfg, Zijin Coll, Nanjing 210046, Peoples R China

[2] Nanjing Univ Aeronaut & Astronaut, Coll Astronaut, Nanjing 210016, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai Key Lab All Solid State Laser & Appl Tech, Shanghai 201800, Peoples R China

来源：

MATERIALS | 2024年 / 17卷 / 05期

关键词：

316L; laser powder bed fusion; TiC; mechanical property; high temperature property; STAINLESS-STEEL; MECHANICAL-PROPERTIES; BEHAVIOR; NANOCOMPOSITES; COMPOSITES; DUCTILITY;

D O I：

10.3390/ma17051129

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

316L stainless steel is widely used in various industrial fields, but its strength is relatively low. The improvement of its strength has become a research hotspot. In this study, nano titanium carbide (TiC) particles are ball milled with 316L with the addition of 2 wt% and 4 wt%. The composite powder was then used for the fabrication of samples by laser powder bed fusion. The results show that the TiC is uniformly distributed in the microstructure. With the addition of TiC, the average size of the grains is significantly reduced. The strength, hardness, and wear resistance of TiC/316L samples have been greatly improved. The tensile strength of formed 2 wt% TiC/316L is 948 MPa, together with a extension rate of 36.0%, which has been increased by 42.6% and 79.7%, respectively. This study provides an effective way to improve the strength at room temperature and the high temperature of 316L built by laser powder bed fusion.

引用

页数：12