Surface modification of Ti-4Al-2V alloy by nitrogen implantation
Surface modification of Ti-4Al-2V alloy by nitrogen implantation
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DOI：
10.1007/s10853-005-5365-2
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发表时间：
2006-04
影响因子：
4.5
通讯作者：
Z. G. Wang;X. Zu;X. Xiang;Shi-Liang Zhu;L. Wang
中科院分区：
文献类型：
--
作者：
Z. G. Wang;X. Zu;X. Xiang;Shi-Liang Zhu;L. Wang
Ti-4Al-2 V是一种适用于高温高压水/蒸汽环境的新型α钛合金。Ti-4Al-2 V可用于海洋工程、核电工业。本文采用掠入射X射线衍射（XRD）、X射线光电子能谱（XPS）和显微硬度计研究了75 keV注氮（注量分别为3 × 1017 N +/cm ~ 2和8 × 1017 N +/cm ~ 2）对Ti-4Al-2 V表面的影响。结果表明，N注入后，在表面区域形成了新相TiN。注氮量为8 × 1017 N +/cm ~ 2和3 × 1017 N +/cm ~ 2时，表面硬度分别提高了340%和260%。硬度的提高与TiN的形成和辐照硬度有关。
Ti-4Al-2V is a new type of alpha titanium alloy that suitable for the application in high-temperature and high-pressure water/steam environment. Ti-4Al-2V can be used in marine engineering, nuclear power industry. In this paper the surface characterization of the Ti-4Al-2V implanted with 75 keV nitrogen with fluences of 3 × 1017and 8 × 1017N+/cm2is investigated by glancing-incidence XRD, XPS and microhardness. The results show that new phase TiN are formed afterNimplantation in the surface region. The nitrogen implantation increases the surface hardness up to 340 and 260% for fluence of 8 × 1017and 3 × 1017N+/cm2, respectively. The enhancement of hardness is related to the formation of TiN and irradiation induced hardness.