Microstructure and wear behavior of Ti-6Al-4V treated by plasma Zr-alloying and plasma nitriding
Kai Chen , Xiaoping Liu , Xiaozhen Liu , Tianxu Meng , Qi Guo , Zhenxia Wang , Naimin Lin
Journal of Wuhan University of Technology Materials Science Edition ›› 2016, Vol. 31 ›› Issue (5) : 1086 -1092.
Microstructure and wear behavior of Ti-6Al-4V treated by plasma Zr-alloying and plasma nitriding
A duplex treatment of plasma Zr-alloying and plasma nitriding was used to improve the tribological properties of Ti-6Al-4V. The microstructure of the Zr-N composite (alloyed) layer formed on Ti-6Al-4V and its hardness, friction and wear properties were investigated by using OM, SEM, GDOES, EDS, microhardness tester as well as ball-on-disk tribometer. The results of microstructural analysis show that the alloyed layer is compact and uniform and is mainly composed of ZrN, TiN0.3 and AlN. A very tiny adhesive and slight oxidation wear is the primary wear mechanism for the modified Ti-6Al-4V. The tribological property is improved significantly after the duplex treatment. The good combination of antifriction and wear resistance for modified Ti-6Al-4V is mainly attributed to the higher surface hardness of metal nitrides formed on the surface and enhanced supporting of the Zr-diffusing layer.
Ti-6Al-4V / plasma Zr-alloying / plasma nitriding / friction / wear
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
Lim S H N, McCulloch D G, Russo S, et al. Using PVD and a Plasma Immersion Ion Implantation System[J]. Nucl. Instrum. Methods B, 2002, 190: 723–727 |
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
| [35] |
Li X Y, Tang B, Wang H F, et al. Zr-N Surface Alloying Layers Fabricated in Pure Titanium Substrates by Plasma Surface Alloying[J] Trans. Nonferrous Met. Soc., 2013, 23: 1628–1632 |
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|
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