Spark plasma sintering of WC-VC0.5 composites with exceptional mechanical properties and high-temperature performance

Peng，Chong1,2; Tang，Hu3; Liang，Pengjie1; Yuan，Xiaohong3; Ke，Yujiao4; Wang，Yuefeng1; Qiao，Lina5; Li，Kenan2; Zhao，Yucheng1; Wang，Mingzhi1

2022-01-13

10.1016/j.msea.2021.142360

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   影响因子和分区

0921-5093

1873-4936

WC-based composites, especially WC-Co, are generally considered representative of cermets with widespread commercial applications. The remarkable toughening enhancement is achieved in WC-Co cermets, however, the incorporation of metallic binders invariably results in a serious deterioration of both hardness and thermal stability. Here we synthesized WC-VC composites with exceptional combination of high hardness and fracture toughness and high-temperature hardness. Conspicuously, the composite of WC with 5 wt.% VC sintered at 1750 °C shows superior comprehensive mechanical properties of high microhardness of 26.2 ± 0.5 GPa and toughness of 9.2 ± 0.2 MPa·m. WC-VC composites possess excellent high-temperature hardness, and the hardness of WC-5 wt.% VC at 700 °C is still over 20 GPa. These excellent properties are attributed to high densification in addition to high-dose stacking faults caused by vacancy defects and twinned structure. Our study may offer a promising pathway towards the design and synthesis of next-generation advanced composites for applications in demanding industrial environments, especially high-temperature applications.

High-temperature hardness Mechanical properties Solid solution Stacking fault and twinning WC-based composites

SCI ; EI

英语

通讯

Natural Science Foundation of Hebei Province of China["E2016203425","E2017203223"] ; Key Projects of Scientific and Technological Research in Hebei Province[ZD2017074] ; Science and Technology Project of Hebei Education Department[ZD2017026] ; Shenzhen Peacock Plan[KQTD2016053019134356] ; Guangdong Innovative and Entrepre-neurial Research Team Program[2016ZT06C279] ; National Natural Science Foundation of China[12075215]

Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000730128600003

ELSEVIER SCIENCE SA

20214711193118

Binders ; Cermets ; Deterioration ; Hardness ; High temperature applications ; Solid state reactions ; Spark plasma sintering ; Stacking faults

Metallurgy and Metallography:531 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Ceramics:812.1 ; Crystal Lattice:933.1.1 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85119264239

Scopus

1.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,066004,China
2.State Key Laboratory of Superabrasives,Zhengzhou Research Institute for Abrasives & Grinding Co.,Ltd.,Zhengzhou,450001,China
3.Academy for Advanced Interdisciplinary Studies & Shenzhen Engineering Research Center for Frontier Materials Synthesis at High Pressures,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China
4.School of Mechanical Engineering,Yanshan University,Qinhuangdao,066004,China
5.Hebei Construction Material Vocational and Technical College,Qinhuangdao,066004,China

Peng，Chong,Tang，Hu,Liang，Pengjie,et al. Spark plasma sintering of WC-VC0.5 composites with exceptional mechanical properties and high-temperature performance[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,831.

Peng，Chong.,Tang，Hu.,Liang，Pengjie.,Yuan，Xiaohong.,Ke，Yujiao.,...&Wang，Mingzhi.(2022).Spark plasma sintering of WC-VC0.5 composites with exceptional mechanical properties and high-temperature performance.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,831.

Peng，Chong,et al."Spark plasma sintering of WC-VC0.5 composites with exceptional mechanical properties and high-temperature performance".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 831(2022).