Microstructural Formation Mechanism of α+β Dual Phase Ti-Fe Sintered Alloys via Hot Rolling Process

被引：0

作者：

Kariya, Shota ^{[1
]}

Tanaka, Takayuki ^{[1
]}

Umeda, Junko ^{[1
]}

Yang, Yafeng ^{[2
]}

Li, Shaofu ^{[2
]}

Khantachawana, Anak ^{[3
]}

Bahador, Abdollah ^{[4
]}

Kondoh, Katsuyoshi ^{[1
]}

机构：

[1] Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, 567-0047, Japan

[2] University of Chinese Academy of Sciences, Beijing,100049, China

[3] Department of Mechanical Engineering, King Mongkut's University of Technology Thonburi (KMUTT), 126 PrachaUthit Rd., Bang Mod, Thung Khru, Bangkok,10140, Thailand

[4] Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur,54100, Malaysia

来源：

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy | 2024年 / 71卷 / 10期

关键词：

Microstructure;

D O I：

10.2497/jjspm.23-00078

中图分类号：

学科分类号：

摘要：

α+β dual phase Ti-(0~6 wt.%) Fe alloys were prepared via sintering and hot rolling process to clarify the effects of Fe contents and the rolling temperature on their microstructures and crystalline orientation. With an increase in the Fe content, the volumetric fraction of the β-Ti phase, contains high Fe solutes, drastically increased. When hot rolled at 750°C (α+β dual-phase temperature), each phase grew immediately after rolling and suppressed each other's grain growth, resulting in fine microstructure formation and uniform residual strain. In Ti-Fe alloys rolled at 1000°C (single β-phase temperature), a very small amount of residual strain was observed, and acicular α-Ti grains with random crystalline orientations were formed due to the phase transformation from β-Ti grains after rolling. © 2024 Journal of the Japan Society of Powder and Powder Metallurgy. All rights reserved.

引用

页码：510 / 516

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