Friction-wear Properties and Mechanism of Hard Facing Pairs of SiC and WC

Xiu-Min YAO; Xiao-Jie WANG; Xue-Jian LIU; Zhong-Ming CHEN; Zheng-Ren HUANG

doi:10.15541/jim20180435

Journals >Journal of Inorganic Materials >Volume 34 >Issue 6 >Page 673 > Article

Journal of Inorganic Materials
Vol. 34, Issue 6, 673 (2019)

Friction-wear Properties and Mechanism of Hard Facing Pairs of SiC and WC

Xiu-Min YAO, Xiao-Jie WANG, Xue-Jian LIU, Zhong-Ming CHEN, and Zheng-Ren HUANG^*

Author Affiliations

The State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China

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DOI: 10.15541/jim20180435 Cite this Article

Xiu-Min YAO, Xiao-Jie WANG, Xue-Jian LIU, Zhong-Ming CHEN, Zheng-Ren HUANG. Friction-wear Properties and Mechanism of Hard Facing Pairs of SiC and WC[J]. Journal of Inorganic Materials, 2019, 34(6): 673 Copy Citation Text

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. Fracture microstructures of three kinds of samples

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. Wear face microstructures of the blocks in different WC/SiC pairs without lubrication

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. Wear face microstructures of SiC samples in different pairs

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. EDS mapping of the worn surface of SSiC blocks in ΦWC/SSiC pairs

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. Micro-area XRD pattern of the worn surface of SSiC blocks in ΦWC/SSiC pairs under dry friction

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	Composite/wt%	Grain size/μm	Relative density/%	Fracture toughness/(MPa·m^1/2)	HV_3.0/GPa	HRA
SSiC	96.4SiC-3.0C-0.6B₄C	3-5	>99	(2.96±0.20)	(20.78±0.96)	(93.4±0.1)
LPSiC	93SiC-7YAG	<2	>99	(3.66±0.23)	(19.72±0.52)	(92.7±0.3)
WC	89.9~91.2WC-8~9Ni-0.8~1.2(Cr+Mo)	<3	>99	(6.65±0.29)	(14.86±0.46)	(90.4±0.1)

Table 1.

Properties of the prepared materials

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Materials of ring/block	Friction coefficient	(Δm/m) of block/%	(Δm/m) of ring/%
ΦSSiC/WC	(0.70±0.02)	(-0.0029±0.0001)	0
ΦWC/SSiC	(0.66±0.09)	(-0.0009±0.0004)	(-0.0036±0.0023)
ΦLPSiC/WC	(0.63±0.01)	(-0.0041±0.0005)	(-0.0038±0.0009)
ΦWC/LPSiC	(0.57±0.01)	(-0.0034±0.0008)	(-0.0105±0.0019)

Table 2.

Friction properties of different pairs of SiC/WC under dry friction

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Materials of ring/block	Friction coefficient	(Δm/m) of block/%	(Δm/m) of ring/%
ΦSSiC/WC	(0.031±0.001)	(-0.0004±0.0001)	(-0.0010±0.0001)
ΦWC/SSiC	(0.018±0.004)	(-0.0004±0.0001)	(+0.0004±0.0004)
ΦLPSiC/WC	(0.093±0.004)	(-0.0002±0.0001)	(-0.0008±0.0001)
ΦWC/LPSiC	(0.020±0.007)	(-0.0004±0.0001)	(-0.0003±0.0006)