Effect of densification mechanism on the Σ2 grain boundary plane distribution in WC-Co composites

被引：16

作者：

Yuan, Xiaokun ^{[1
]}

Song, Xiaoyan ^{[1
]}

Chien, Harry ^{[2
]}

Li, Jia ^{[2
]}

Rohrer, Gregory S. ^{[2
]}

机构：

[1] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

[2] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA

来源：

MATERIALS LETTERS | 2013年 / 92卷

基金：

北京市自然科学基金; 美国安德鲁·梅隆基金会;

关键词：

Grain boundary; Cemented carbide; Sintering; Electron microscopy; Five parameter analysis; CHARACTER DISTRIBUTIONS; CEMENTED CARBIDES; TUNGSTEN CARBIDE; GROWTH;

D O I：

10.1016/j.matlet.2012.10.074

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of the densification mechanism on the Sigma 2 grain boundary plane distribution was investigated in WC-Co composites. Specimens were prepared separately by sintering in hot isostatic press (sinterHIP) and spark plasma sintering (SPS). It was found that the Sigma 2 twist boundary is the most common boundary in both cases, but that the SPS material had more than three times the relative area of these boundaries compared to the sinter-HIP material. Measurements of the WC/WC and WC/Co boundary lengths are compared to measured mechanical properties and found to be consistent with established stereological results, suggesting a path to link interface area measurements to the mechanical properties of WC-Co samples. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：86 / 89

页数：4

共 11 条

[1] Mechanism for the development of anisotropic grain boundary character distributions during normal grain growth
Dillon, Shen J.
Rohrer, Gregory S.
[J]. ACTA MATERIALIA, 2009, 57 (01) : 1 - 7
[2] STUDY OF NANOSTRUCTURED WC-CO COMPOSITES
FANG, ZG
EASON, JW
[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 1995, 13 (05) : 297 - 303
[3] GRAIN-BOUNDARY ANALYSIS IN TEM .4. COINCIDENCE AND THE ASSOCIATED DEFECT STRUCTURE IN TUNGSTEN CARBIDE
HAGEGE, S
NOUET, G
DELAVIGNETTE, P
[J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1980, 62 (01): : 97 - 107
[4] Interface character distributions in WC-Co composites
Kim, Chang-Soo
Massa, Ted R.
Rohrer, Gregory S.
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (03) : 996 - 1001
[5] Geometric and crystallographic characterization of WC surfaces and grain boundaries in WC-Co composites
Kim, CS
Rohrer, GS
[J]. INTERFACE SCIENCE, 2004, 12 (01) : 19 - 27
[6] An analysis of grain boundaries and grain growth in cemented tungsten carbide using orientation imaging microscopy
Kumar, V
Fang, ZGZ
Wright, SI
Nowell, MM
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (03): : 599 - 607
[7] Effect of Σ2 grain boundaries on plastic deformation of WC-Co cemented carbides
Östberg, G
Farooq, MU
Christensen, M
Andrén, HO
Klement, U
Wahnström, G
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 416 (1-2): : 119 - 125
[8] Measuring and Interpreting the Structure of Grain-Boundary Networks
Rohrerw, Gregory S.
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2011, 94 (03) : 633 - 646
[9] Measuring the five-parameter grain-boundary distribution from observations of planar sections
Saylor, DM
El-Dasher, BS
Adams, BL
Rohrer, GS
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (07): : 1981 - 1989
[10] QUANTITATIVE RELATIONSHIPS BETWEEN MICROSTRUCTURE PARAMETERS AND MECHANICAL PROPERTIES OF ULTRAFINE CEMENTED CARBIDES
Zhao Shixian
Song Xiaoyan
Liu Xuemei
Wei Chongbin
Wang Haibin
Gao Yang
[J]. ACTA METALLURGICA SINICA, 2011, 47 (09) : 1188 - 1194

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