Effects of Sintering Processes on Composite Tool Steels Containing Self-synthesized TiC

被引：3

作者：

Chen, J. K. ^{[1
]}

Chiu, H. J. ^{[1
]}

Liang, C. ^{[1
]}

Yu, B. S. ^{[1
]}

Chang, S. H. ^{[1
]}

机构：

[1] Natl Taipei Univ Technol, Dept Mat & Mineral Resources Engn, Taipei 10608, Taiwan

来源：

ISIJ INTERNATIONAL | 2010年 / 50卷 / 10期

关键词：

metal-matrix composites (MMCs); particle-reinforcement; hot isostatic processing; mechanical properties; MECHANICAL-PROPERTIES;

D O I：

10.2355/isijinternational.50.1453

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In present study, synthesized TiC was formed via mechanical alloying by planetary ball milling Ti and carbon black. Nano-size TiC powders in spherical shape were synthesized by milling for longer than 8 h at 400 rpm. Raman spectroscopy and TEM analyses both confirmed TiC formation. 0-44 vol% of these TiC and tool steel powders were then sintered by combining two powder metallurgy routes, vacuum sintering and hot isostatic pressing (HIP) without encapsulation. It was found that the nano-size TiC particles distributed uniformly among the tool steel powders. HIP had positive effects in both reducing internal voids and increasing flexural strengths of vacuum sintered composites. Nearly full sintering density was achieved without encapsulation. The amount of TiC added was up to 44 vol%, and the hardness of composite such formed reached as high as 71.6 HRc.

引用

页码：1453 / 1459

页数：7

共 18 条

[11] Effect of starting composition on the synthesis of nanocrystalline Tic during milling of titanium and carbon [J].

Lohse, BH ;

Calka, A ;

Wexler, D .

JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 394 (1-2) :148-151

[12] Processing and properties of particulate reinforced steel matrix composites [J].

Pagounis, E ;

Lindroos, VK .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 246 (1-2) :221-234

[13] Microstructure and mechanical properties of hot work tool steel matrix composites produced by hot isostatic pressing [J].

Pagounis, E ;

Talvitie, M ;

Lindroos, VK .

POWDER METALLURGY, 1997, 40 (01) :55-61

[14] Synthesis of nanocrystalline TiC powder from impure Ti chips via mechanical alloying [J].

Razavi, Mansour ;

Rahimipour, Mohammad Reza ;

Rajabi-Zamani, Amir Hossein .

JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 436 (1-2) :142-145

[15]

Rizzo FJ, 1999, INT J POWDER METALL, V35, P53

[16]

Schwartz M M., 1984, Compoosite Materials Handbook, P1

[17] Microstructural and mechanical characteristics of in situ metal matrix composites [J].

Tjong, SC ;

Ma, ZY .

MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2000, 29 (3-4) :49-113

[18] SYNTHESIS OF NANOCRYSTALLINE TIC POWDERS BY MECHANICAL ALLOYING [J].

YE, LL ;

QUAN, MX .

NANOSTRUCTURED MATERIALS, 1995, 5 (01) :25-31

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