Effect of Sintering Temperature on the Microstructure and Mechanical Properties of Nanocrystalline Cemented Carbide

被引：0

作者：

Chen, Xianfu ^{[1
,2
]}

Liu, Ying ^{[1
,2
]}

Ye, Jinwen ^{[1
,2
]}

Wang, Lu ^{[1
,2
]}

机构：

[1] Sichuan Univ, Sch Mat Sci & Engn, Chengdu 610065, Peoples R China

[2] Minist Educ, Key Lab Adv Special Mat &Technol, Chengdu 610065, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2024年 / 39卷 / 03期

关键词：

nano nitrogen cemented carbide; sintering temperature; microstructure; mechanical properties; WC-CO; TUNGSTEN CARBIDE; GRAIN-BOUNDARIES; CR3C2; WC/CO; VC; SEGREGATION; INTERFACES; BEHAVIOR; CR;

D O I：

10.1007/s11595-024-2924-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

WC-Co nanocrystalline nitrogen-containing cemented carbides were prepared by vacuum sintering and low pressure sintering. The sintering processes of Cr2(C,N) doped nano WC-Co powders were studied by using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The effect of sintering temperature on the microstructure and mechanical properties of nanocrystalline cemented carbide was studied by scanning electron microscope (SEM), high resolution transmission electron microscope (HRTEM) and mechanical property test. The results showed that the nano WC grains began to grow in the solid phase sintering stage. A high-performance nano-nitrogen-containing cemented carbide with uniform microstructure and good interfacial bonding can be obtained by increasing the sintering temperature to 1 380 degrees C. It has a transverse rupture strength (TRS) of 5 057 MPa and a hardness of 1 956 HV30.

引用

页码：664 / 672

页数：9

共 28 条

[11] The enhancement of the microstructure and mechanical performances of ultrafine WC-Co cemented carbides by optimizing Cr2(C,N) addition and WC particle sizes
Li, Ding
Liu, Ying
Ye, Jinwen
Chen, Xianfu
Wang, Lu
[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2021, 97
[12] Low-energy grain boundaries in WC-Co cemented carbides
Liu, Xingwei
Liu, Xuemei
Lu, Hao
Wang, Haibin
Hou, Chao
Song, Xiaoyan
Nie, Zuoren
[J]. ACTA MATERIALIA, 2019, 175 : 171 - 181
[13] Complexions in WC-Co cemented carbides
Liu, Xingwei
Song, Xiaoyan
Wang, Haibin
Liu, Xuemei
Tang, Fawei
Lu, Hao
[J]. ACTA MATERIALIA, 2018, 149 : 164 - 178
[14] Microstructural study on the grain growth inhibition of VC-doped WC-Co cemented carbides
Okada, K.
Osada, A.
[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2017, 62 : 149 - 154
[15] Sintering variables optimization, microstructural evolution and physical properties enhancement of nano-WC ceramics
Sabzi, M.
Anijdan, S. H. Mousavi
Ghobeiti-Hasab, M.
Fatemi-Mehr, M.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 766 : 672 - 677
[16] Effects of LaB6 addition on the microstructure and mechanical properties of ultrafine grained WC-10Co alloys
Shen, T. T.
Xiao, D. H.
Ou, X. Q.
Song, M.
He, Y. H.
Lin, N.
Zhang, D. F.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (04) : 1236 - 1243
[17] Effect of interfacial characteristics on toughness of nanocrystalline cemented carbides
Song, Xiaoyan
Gao, Yang
Liu, Xuemei
Wei, Chongbin
Wang, Haibin
Xu, Wenwu
[J]. ACTA MATERIALIA, 2013, 61 (06) : 2154 - 2162
[18] Pseudopartial wetting of WC/WC grain boundaries in cemented carbides
Straumal, B. B.
Konyashin, I.
Ries, B.
Straumal, A. B.
Mazilkin, A. A.
Kolesnikova, K. I.
Gusak, A. M.
Baretzky, B.
[J]. MATERIALS LETTERS, 2015, 147 : 105 - 108
[19] Sintering behavior and mechanical properties of Cr3C2 doped ultra-fine WC-Co cemented carbides: Experment guided with thermodynamic calculations
Tian, Haixia
Zhang, Mingyu
Peng, Yingbiao
Du, Yong
Zhou, Peng
[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2019, 78 : 240 - 246
[20] The influence of microstructure on the magnetic properties of WC/Co hardmetals
Topic, I
Sockel, HG
Wellmann, P
Göken, A
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 423 (1-2): : 306 - 312

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