Effects of micro-sized TiC on the cracking behavior of additively manufactured tungsten

被引：0

作者：

Candela, Silvia ^{[1
,2
]}

Ottelin, Juha ^{[3
]}

Hongisto, Janne ^{[3
]}

Lehtonen, Hanna ^{[3
]}

Candela, Valentina ^{[1
,2
]}

Syvanen, Tatu ^{[3
]}

Mutanen, Antti ^{[3
]}

Nystrom, Maija ^{[3
]}

Pepato, Adriano ^{[2
]}

Bettini, Paolo ^{[1
,4
]}

机构：

[1] Univ Padua, Ctr Ric Fusione CRF, Corso Stati Uniti 4, I-35127 Padua, Italy

[2] Natl Inst Nucl Phys INFN, Sect Padova, Via F Marzolo 8, I-35131 Padua, Italy

[3] Electro Opt Syst Finland Oy, Lemminkaisenkatu 36, Turku 20520, Finland

[4] Univ Padua, Dept Ind Engn DII, Via G Gradenigo 6-A, I-35131 Padua, Italy

来源：

MATERIALS LETTERS | 2025年 / 383卷

关键词：

Tungsten; Refractory metals; Alloys; Additive manufacturing; Microstructure; Cracks; MICROSTRUCTURE; ALLOYS;

D O I：

10.1016/j.matlet.2024.137969

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the effects of the addition of TiC micro-sized particles on the printability of tungsten via Laser-Based Powder Bed Fusion are presented. Micrographic analyses were carried out on pure tungsten and W-TiC samples to study the evolution of the microstructure. It is well known that additively manufactured tungsten has a high cracking tendency due to the rapid solidification rate during the process, and the intrinsic brittleness of the grain boundaries. The addition of titanium carbide helped to reduce the cracks within the material, and microcracks were completely eliminated. However, some segregation areas of titanium were noticed, and this phenomenon is strongly correlated to the formation of voids in the metal.

引用

页数：4

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