Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation

Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation

Commercially pure (cp) titanium has a relative soft hardness property. In particular usage such as sliding, the improvement of the surface hardness will be required. In this study, surface hardness improvement of cp titanium by Plasma Nitrocarburizing and Ion Implantation are compared. Plasma Nitroc...

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Main Authors: Darmawan, Agung Setyo, Siswanto, Waluyo Adi, Sujitno, Tjipto
Format: Article
Published: Trans Tech Publications, Switzerland 2013
Subjects:
TJ1-162 Mechanical engineering and machinery
Online Access:http://www.scientific.net/AMR.789.347
http://www.scientific.net/AMR.789.347
http://eprints.uthm.edu.my/4302/1/journal%2D2013%2DAMR%2Dp1%2DComparison_of_Commercially_Pure_Titanium_Surface_Hardness.pdf
id uthm-4302
recordtype eprints
spelling uthm-43022014-05-04T03:52:14Z Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation Darmawan, Agung Setyo Siswanto, Waluyo Adi Sujitno, Tjipto TJ1-162 Mechanical engineering and machinery Commercially pure (cp) titanium has a relative soft hardness property. In particular usage such as sliding, the improvement of the surface hardness will be required. In this study, surface hardness improvement of cp titanium by Plasma Nitrocarburizing and Ion Implantation are compared. Plasma Nitrocarburizing processes are conducted at different elevated temperatures with different duration processes, i.e. at 350 °C for 3, 4, and 5 hours, and at 450 °C for 2, 3, and 4 hours respectively, while Ion Implantation processes are conducted at room temperature and process durations are varied as 2.3 hours, 4.7 hours, and 9.3 hours. Nitrogen ions are used to implant the material. Hardness tests are then performed on each specimen by using Micro Vickers Hardness Tester. The surface hardness number (HV) for specimens of the Plasma Nitrocarburizing processes at temperature of 350 °C for process duration of 3 hours, 4 hours, and 5 hours are 74.16, 92.25 and 94.41, respectively while those at temperature of 450 °C for duration process of 2 hours, 3 hours, and 4 hours are 103.70, 121.31 and 126.17, respectively. The processes of Ion Implantation produce the surface hardness number (HV) of 88.97, 125.51, and 130.2, for duration processes of 2.3 hours, 4.7 hours, and 9.3 hours. The process of Ion Implantation produce higher surface hardness number than the Plasma Nitrocarburizing process at temperature 350 °C but the surface hardness number is lower when compared to the Plasma Nitrocarburizing at a temperature of 450 °C. For the duration processes 4 hours and more, the process of Ion Implantation produces the same surface hardness number with the Plasma Nitrocarburizing at temperature of 450 °C. Trans Tech Publications, Switzerland 2013-09-01 Article PeerReviewed application/pdf http://eprints.uthm.edu.my/4302/1/journal%2D2013%2DAMR%2Dp1%2DComparison_of_Commercially_Pure_Titanium_Surface_Hardness.pdf http://www.scientific.net/AMR.789.347 Darmawan, Agung Setyo and Siswanto, Waluyo Adi and Sujitno, Tjipto (2013) Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation. Advanced Materials Research, 789 . pp. 347-351. ISSN 1662-8985 http://eprints.uthm.edu.my/4302/
repository_type Digital Repository
institution_category Local University
institution Universiti Tun Hussein Onn Malaysia
building UTHM Institutional Repository
collection Online Access
topic TJ1-162 Mechanical engineering and machinery
spellingShingle TJ1-162 Mechanical engineering and machinery
Darmawan, Agung Setyo
Siswanto, Waluyo Adi
Sujitno, Tjipto
Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation
description Commercially pure (cp) titanium has a relative soft hardness property. In particular usage such as sliding, the improvement of the surface hardness will be required. In this study, surface hardness improvement of cp titanium by Plasma Nitrocarburizing and Ion Implantation are compared. Plasma Nitrocarburizing processes are conducted at different elevated temperatures with different duration processes, i.e. at 350 °C for 3, 4, and 5 hours, and at 450 °C for 2, 3, and 4 hours respectively, while Ion Implantation processes are conducted at room temperature and process durations are varied as 2.3 hours, 4.7 hours, and 9.3 hours. Nitrogen ions are used to implant the material. Hardness tests are then performed on each specimen by using Micro Vickers Hardness Tester. The surface hardness number (HV) for specimens of the Plasma Nitrocarburizing processes at temperature of 350 °C for process duration of 3 hours, 4 hours, and 5 hours are 74.16, 92.25 and 94.41, respectively while those at temperature of 450 °C for duration process of 2 hours, 3 hours, and 4 hours are 103.70, 121.31 and 126.17, respectively. The processes of Ion Implantation produce the surface hardness number (HV) of 88.97, 125.51, and 130.2, for duration processes of 2.3 hours, 4.7 hours, and 9.3 hours. The process of Ion Implantation produce higher surface hardness number than the Plasma Nitrocarburizing process at temperature 350 °C but the surface hardness number is lower when compared to the Plasma Nitrocarburizing at a temperature of 450 °C. For the duration processes 4 hours and more, the process of Ion Implantation produces the same surface hardness number with the Plasma Nitrocarburizing at temperature of 450 °C.
format Article
author Darmawan, Agung Setyo
Siswanto, Waluyo Adi
Sujitno, Tjipto
author_facet Darmawan, Agung Setyo
Siswanto, Waluyo Adi
Sujitno, Tjipto
author_sort Darmawan, Agung Setyo
title Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation
title_short Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation
title_full Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation
title_fullStr Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation
title_full_unstemmed Comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation
title_sort comparison of commercially pure titanium surface hardness improvement by plasma nitrocarburizing and ion implantation
publisher Trans Tech Publications, Switzerland
publishDate 2013
url http://www.scientific.net/AMR.789.347
http://www.scientific.net/AMR.789.347
http://eprints.uthm.edu.my/4302/1/journal%2D2013%2DAMR%2Dp1%2DComparison_of_Commercially_Pure_Titanium_Surface_Hardness.pdf
first_indexed 2018-09-05T11:12:30Z
last_indexed 2018-09-05T11:12:30Z
_version_ 1610765776335142912

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