Fabrication of high strength and plasticity of iron matrix composite with Ti@(TiC plus α-Fe) core-shell structure by near-eutectic temperature hot pressing sintering

被引：6

作者：

Bai, Haiqiang ^{[1
,2
]}

Zhong, Lisheng ^{[1
]}

Cui, Pengjie ^{[1
]}

Kang, Ling ^{[1
,2
]}

Liu, Jianbo ^{[1
]}

Lv, ZhenLin ^{[1
]}

Xu, Yunhua ^{[1
]}

机构：

[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China

[2] Ankang Univ, Sch Chem & Chem Engn, Ankang 725000, Peoples R China

来源：

VACUUM | 2021年 / 194卷

基金：

中国国家自然科学基金;

关键词：

Iron matrix composite; Core-shell structure; Microstructure; Strength; Plasticity;

D O I：

10.1016/j.vacuum.2021.110574

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To overcome the trade-off between strength and plasticity of traditional particulate reinforced iron matrix composite, a novel Ti@(TiC + alpha-Fe) core-shell structure reinforced iron matrix composite with high strength and plasticity was designed and fabricated via near-eutectic temperature hot pressing sintering process at 1100 degrees C for 2 h. The composite consists of three-dimensional Ti@(TiC + alpha-Fe) core-shell structure and iron matrix. Predominant features of the Ti@(TiC + alpha-Fe) core-shell structure include a isolated soft Ti core and a continuous hard TiC-Fe shell. The obtained composite reinforced with such core-shell structure reinforcing particulates achieves an unprecedented compressive fracture strain of 43.9% while maintaining high yield strength of 425.6 MPa and ultimate compressive strength of 798.3 MPa. Thus, this work provides a novel material design approach and alleviates the strength-plasticity trade-off of iron matrix composite.

引用

页数：4

共 14 条

[1]

Agamben Giorgio, 2017, PROFANATIONS

[2]

[Anonymous], 2019, BEIJING JIAOTONG U

[3] A novel iron matrix composite fabricated by two-step in situ reaction: Microstructure, formation mechanism and mechanical properties [J].

Bai, Haiqiang ;

Zhong, Lisheng ;

Kang, Ling ;

Wei, Junzhe ;

Lv, ZhenLin ;

Xu, Yunhua .

JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 855

[4] In-situ molten salt reaction and incorporation of small (10 nm) TiC nanoparticles into Al [J].

Cao, Chezheng ;

Ling, Haonan ;

Murali, Narayanan ;

Li, Xiaochun .

MATERIALIA, 2019, 7

[5] Enhanced high-temperature compressive strength of TiC reinforced stainless steel matrix composites fabricated by liquid pressing infiltration process [J].

Cho, Seungchan ;

Lee, Yeong-Hwan ;

Ko, Sungmin ;

Park, Hyeonjae ;

Lee, Donghyun ;

Shin, Sangmin ;

Jo, Ilguk ;

Kim, Yangdo ;

Lee, Sang-Bok ;

Lee, Sang-Kwan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 817

[6] Effect of TiC Contents on Mechanical Properties and Wear Resistance of Iron-Based Composites [J].

Dong Hulin ;

Bao Haiping ;

Peng Jianhong .

ACTA METALLURGICA SINICA, 2019, 55 (08) :1049-1057

[7] Densification, microstructure and mechanical performance of TiC/Fe composites by spark plasma sintering [J].

Huang, Lei ;

Pan, Yafei ;

Zhang, Jiuxing ;

Liu, Aijun ;

Du, Yong ;

Luo, Fenghua .

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2020, 9 (03) :6116-6124

[8]

Lai J, 2016, BEIJING JIAOTONG U

[9] In-situ synthesis of TiC/Fe alloy composites with high strength and hardness by reactive sintering [J].

Lee, Junho ;

Lee, Dongju ;

Song, Myung Hoon ;

Rhee, Wonhyuk ;

Ryu, Ho Jin ;

Hong, Soon Hyung .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2018, 34 (08) :1397-1404

[10] Microstructure and mechanical properties of iron-containing titanium metal-metal composites [J].

Lin, Fangrui ;

Chen, Zhixing ;

Liu, Bin ;

Liu, Yong ;

Zhou, Chengshang .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2020, 90

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