Grain refinement of additively manufactured commercial purity aluminum by addition of TiC heterogeneous nucleation site particles

被引：0

作者：

Watanabe Y. ^{[1
]}

Sugano H. ^{[1
,2
]}

Chiba T. ^{[1
,3
]}

Sato H. ^{[1
]}

Sato N. ^{[4
]}

Nakano S. ^{[4
,5
]}

机构：

[1] Nagoya Institute of Technology, Gokisocho, Showa-ku, Aichi, Nagoya-shi

[2] Rinnai Corporation, Aichi, Nagoya-shi

[3] JFE Steel Corporation, Fukuyama-shi, Hiroshima

[4] National Institute of Advanced Industrial Science and Technology（AIST）, Ibaraki, Tsukuba-shi

[5] Henry Monitor Inc., Suwa-shi, Nagano

来源：

Keikinzoku/Journal of Japan Institute of Light Metals | 2022年 / 72卷 / 05期

关键词：

additive manufacture (AM); grain refinement; heterogeneous nucleation; laser-based powder bed fusion (PBF-LB); texture;

D O I：

10.2464/jilm.72.198

中图分类号：

学科分类号：

摘要：

In this study, effects of heterogeneous nucleation site particles on density, microstructure and hardness were studied in the pure aluminum samples additively manufactured by laser-based powder bed fusion (PBF-LB) method with a small amount of TiC particles. It was found that higher density of the sample was found by addition of small amount of TiC particles. It was also found that the sample containing 1.0 vol% TiC particles has the most refined microstructure. In addition, the samples fabricated with 0 vol% and 0.1 vol% TiC particles have <101> texture along building direction, whereas <100> texture was observed for the samples with 0.5 vol% and 1.0 vol% TiC particles. As the volume fraction of TiC particles increases, the hardness of the samples was also increased. Higher hardness in the samples with TiC particles was mainly caused by not reinforcement effects of TiC particles but refinement of grain structure by heterogeneous nucleation. © 2022 The Japan Institute of Light Metals

引用

页码：198 / 205

页数：7

共 37 条

[31] Grain refinement performance of aluminum cast by addition of spherical Al3Ti particles fabricated by gas atomization method
Department of Physical Science and Engineering, Nagoya Institute of Technology, Graduate School of Engineering, Gokiso-cho, Showa-ku, Nagoya-shi, Aichi
466-8555, Japan
不详
不详
Keikinzoku J Jpn Inst Light Met, 6 (208-213):
[32] 3D Visualization of Top Surface Structure and Pores of 3D Printed Ti-6Al-4V Samples Manufactured with TiC Heterogeneous Nucleation Site Particles
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