Additive manufacturing of Ti-6Al-4V/V-interlayer/17-PH steel functionally graded material using angular and spheroidal V powders

被引：5

作者：

Park, Chan Woong ^{[1
]}

Hajra, Raj Narayan ^{[1
]}

Adomako, Nana Kwabena ^{[2
]}

Choo, Woong ^{[1
]}

Yang, Seung-Min ^{[3
]}

Seo, Seok-Jun ^{[4
]}

Kim, Jeoung Han ^{[1
]}

机构：

[1] Hanbat Natl Univ, Daejeon 34158, South Korea

[2] UNSW Sydney, Sydney, NSW 2052, Australia

[3] Korea Inst Ind Technol, Gangwon 25440, South Korea

[4] Korea Inst Ind Technol, Incheon 21999, South Korea

来源：

MATERIALS LETTERS | 2023年 / 337卷

关键词：

Titanium; Stainless steel; Functionally graded material; Directed energy deposition; Radio -frequency thermal plasma; STAINLESS-STEEL; TI-6AL-4V;

D O I：

10.1016/j.matlet.2023.133936

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The applications of V as an interlayer in functionally graded materials (FGMs) fail prematurely because of its angular shape. In this study, a radiofrequency thermal plasma process was employed to change the shape of V powder from angular to spheroidal. The angular and spheroidal V powders were then used to fabricate two FGMs, namely, Ti-6Al-4V/angular V/17-PH and Ti-6Al-4V/spherical V/17-PH. Unlike the angular V powder, the spherical V powder created a sound joint interface with a uniform layer and no cracks or delamination. The spheroidized V interlayer was thicker than the angular V interlayer. Unlike the spheroidized V interlayer, the angular V interface exhibited microcracks surrounded by sigma phases. Moreover, Ti-6Al-4V/spherical V/17-PH exhibited superior mechanical properties. The high flowability associated with the fine spherical powders of Ti-6Al-4V/spherical V/17-PH significantly enhanced the efficiency of additive manufacturing and improved the microstructure and mechanical properties of the deposited joint.

引用

页数：4

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