Microstructure and Strength of Ti-6Al-4V Samples Additively Manufactured with TiC Heterogeneous Nucleation Site Particles

Author:

Watanabe Yoshimi1,Yamada Shintaro1,Chiba Tadachika1,Sato Hisashi1ORCID,Miura Seiji2ORCID,Abe Kenshiro3,Kato Tomotsugu3

Affiliation:

1. Department of Physical Science and Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan

2. Division of Materials Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan

3. Nabtesco Corporation, Tokyo 102-0093, Japan

Abstract

Our research aims to investigate the fabrication of additively manufactured (AMed) Ti-6Al-4V samples under reduced power with the addition of TiC heterogeneous nucleation site particles. For this aim, Ti-6Al-4V samples are fabricated with and without TiC heterogeneous nucleation site particles using an EOS M 290 machine under optimal parameters and reduced power conditions. The microstructure and tensile behavior of the produced samples were studied. In addition, a single-track test was performed to obtain a good understanding of the suppression of gas pores and balling formation with the addition of TiC heterogeneous nucleation site particles. It was found that the formation of gas pores and balling was suppressed with the addition of heterogeneous nucleation site particles within the metallic powder.

Funder

Light Metal Educational Foundation of Japan

Publisher

MDPI AG

Subject

General Materials Science

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