Research Article | OPEN ACCESS
Surface Modification of Commercially Pure Titanium by Plasma Nitrocarburizing at Different Temperatures and Duration Process
1Agung Setyo Darmawan, 2Waluyo Adi Siswanto and 3Tjipto Sujitno
1Jurusan Teknik Mesin, Universitas Muhammadiyah Surakarta (UMS), Pabelan,
Surakarta 57102, Indonesia
2Department of Engineering Mechanics, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia
3National Nuclear Energy Agency (BATAN), Yogyakarta 55281, Indonesia
Research Journal of Applied Sciences, Engineering and Technology 2013 4:1351-1357
Received: July 05, 2012 | Accepted: July 31, 2012 | Published: February 01, 2013
Abstract
One of potential metals to be used in biomechanical applications is the commercially pure (cp) titanium. This material requires a process to improve the mechanical properties of the surface, because it is relatively soft. The purpose of this study is to determine the effect of plasma nitro carburizing process to cp titanium surface hardness. In this study, cp titanium plasma nitro carburizing process is conducted at different temperatures, i.e., at 350°C for 3, 4, and 5 h, and at 450°C for 2, 3, and 4 h, respectively. Hardness tests are then performed on each specimen. The depth of penetration in the hardness test is also recorded; the microstructure captures are also taken using an optical microscope. The results show that the longer processing time, the higher the hardness value. In higher temperature, the hardness values correspond to the increasing temperature. In terms of the depth direction, there is a reduction in hardness value compared to the raw material.
Keywords:
Biomechanics, diffusion, hardness, surface hardening, vickers,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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