Characterisation of rare earth assisted plasma carbonitrided TiNi alloys

Characterisation of rare earth assisted plasma carbonitrided TiNi alloys
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稀土辅助等离子碳氮共渗TiNi合金的表征

DOI:
10.1179/1743294412y.0000000028
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发表时间:
2012-09
影响因子:
2.8
通讯作者:
Mi, X. J.
Mi, X. J.
中科院分区:
材料科学3区
文献类型:
--
作者:
Feng, X.;Sui, J. H.;Cai, W.;Mi, X. J.

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为了增加TiNi合金的扩散层厚度,在等离子体碳氮共渗过程中加入稀土元素La和Ce。比较了稀土辅助和非稀土辅助涂层TiNi的相组成、显微组织和磨损性能。结果表明,稀土的加入使渗层厚度从2.5 μm增加到12.5 μm。稀土辅助等离子碳氮共渗试样的重量损失较小,因此,它们表现出更好的耐磨性比试样离子碳氮共渗没有稀土援助。
In order to increase the thickness of diffusion layers on TiNi alloys, the rare earth (RE) metals La and Ce were employed in the plasma carbonitriding process. The phases, microstructures and wear behaviours of the coated TiNi with and without RE assistance were compared. Experimental results indicated the addition of RE obviously increased the thickness of diffusion layer from 2·5 to 12·5 μm. Rare earth assisted plasma carbonitrided samples had less weight loss, and thus they exhibited better wear resistance than specimens plasma carbonitrided without RE assistance.
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