Carbide/binder interfaces in Ti(CN)-(Ti, W)C/(Ti, W)(CN)-based cermets

被引：71

作者：

Park, Choongkwon ^{[1
]}

Nam, Sangwoo ^{[1
]}

Kang, Shinhoo ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151742, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 657卷

关键词：

Ti(CN) cermet; Mechanical properties; Microstructure; Interface; HRTEM; MECHANICAL-PROPERTIES; ELECTRONIC-PROPERTIES; MICROSTRUCTURE; WC; DISSOLUTION; NBC; (TI;

D O I：

10.1016/j.jallcom.2015.10.121

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Partially solutionized carbide cermets (PSCs) were prepared for cutting tool applications by replacing a portion of Ti(CN) with (Ti0.88W0.12) C or (Ti0.88W0.12)(C0.7N0.3) in a conventional Ti(CN)-based cermet. The PSC containing (Ti0.88W0.12) C exhibited high fracture toughness with no loss of hardness. The elimination of Ti(C0.7N0.3) cores in the microstructure reduced the strain at the core/rim interfaces, leading to the increase in fracture toughness. The PSC containing (Ti0.88W0.12) C showed coherent relationships at the core/rim and rim/binder interfaces, contributing to the improved mechanical properties. In contrast, nitrogen in (Ti0.88W0.12)(C0.7N0.3) resulted in a different microstructure and properties. The major factors determining the mechanical properties of the cermets are discussed in terms of the carbide/binder interfaces and the thermal stability of the added carbides. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：671 / 677

页数：7

共 35 条

[1] Effect of various carbides on the dissolution behavior of Ti(C0.7N0.3) in a Ti(C0.7N0.3)-30Ni system [J].

Ahn, S ;

Kang, S .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2001, 19 (4-6) :539-545

[2] Formation of core/rim structures in Ti(C,N)-WC-Ni cermets via a dissolution and precipitation process [J].

Ahn, SY ;

Kang, S .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2000, 83 (06) :1489-1494

[3] Microstructure of Ti(CN)-WC-NbC-Ni cermets [J].

Ahn, SY ;

Kim, SW ;

Kang, S .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2001, 84 (04) :843-849

[4] Structure, bonding, and adhesion at the TiC(100)/Fe(110) interface from first principles [J].

Arya, A ;

Carter, EA .

JOURNAL OF CHEMICAL PHYSICS, 2003, 118 (19) :8982-8996

[5] FLOW CHARACTERISTICS OF HIGHLY CONSTRAINED METAL WIRES [J].

ASHBY, MF ;

BLUNT, FJ ;

BANNISTER, M .

ACTA METALLURGICA, 1989, 37 (07) :1847-1857

[6] ELECTRONIC-PROPERTIES OF THE CLEAN AND HYDROGEN-COVERED TIC(111) TI-TERMINATED POLAR SURFACE [J].

BRADSHAW, AM ;

VANDERVEEN, JF ;

HIMPSEL, FJ ;

EASTMAN, DE .

SOLID STATE COMMUNICATIONS, 1981, 37 (01) :37-40

[7]

Doi A., 1986, High Temperatures - High Pressures, V18, P443

[8] T1(C,N) CERMETS - METALLURGY AND PROPERTIES [J].

ETTMAYER, P ;

KOLASKA, H ;

LENGAUER, W ;

DREYER, K .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 1995, 13 (06) :343-351

[9] ELECTRONIC-PROPERTIES OF TIC(100) AND POLAR TIC(111) SURFACES [J].

FUJIMORI, A ;

MINAMI, F ;

TSUDA, N .

SURFACE SCIENCE, 1982, 121 (02) :199-217

[10] CERMETS .1. FUNDAMENTAL CONCEPTS RELATED TO MICROSTRUCTURE AND PHYSICAL PROPERTIES OF CERMET SYSTEMS [J].

HUMENIK, M ;

PARIKH, NM .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1956, 39 (02) :60-63

← 1 2 3 4 →