Using Zr55Al10Ni5Cu30 (at.%) metallic glass alloy rods as electrode, Zr-based alloy coatings were prepared on ZL101 alloy surfaces by electrospark deposition technique. The microstructure and tribology behaviors of the deposited coatings were analyzed by optical microscope (OM), X-ray diffraction (XRD), microhardness tester, and friction and wear tester. The results show that the Zr-based deposition coating is mainly consists of amorphous, Al(Si), ZrO2 and Cu8Zr3 phases. The surface morphologies of the deposition coatings are formed by deposition points superimposed to each other showing typical splash pattern morphology. The average microhardness of Zr-based deposited coating is about 1 555 HV0.01, the coefficient friction is 0.096, which indicates that the coatings have good friction and wear performance. The main abrasion mechanism of the deposited coating is abrasive wear and fatigue wear.
WANG Yanfang
,
SI Shuangshuang
,
SONG Zenjin
,
SUN Xu
,
SHI Zhiqiang
. Microstructure and tribology behaviors of Zr-based amorphous coating on ZL101 by electro-spark deposition[J]. Transactions of The China Welding Institution, 2018
, 39(7)
: 121
-124
.
DOI: 10.12073/j.hjxb.2018390188
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