Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

Effect of Nitriding Temperature and Nitriding Time On Magnesium, MgAZ91D Alloy

TG. ALI, TENGKU MOHAMAD AMIRUL (2018) Effect of Nitriding Temperature and Nitriding Time On Magnesium, MgAZ91D Alloy. IRC, Universiti Teknologi PETRONAS. (Submitted)

[img] PDF
Restricted to Registered users only

Download (1911Kb)


Magnesium and its alloy are widely known such as MgAZ91D are receiving more consideration especially in telecommunication industries, instrumental industry, electrical industry and automotive industry due to its excellent properties such as low density, high specific strength and high recyclability. However, it possesses a low surface hardness which can weaken the adhesion properties especially when hard coating is applied. The need of hard coating is important to enhance its corrosion resistance because its corrosion resistance is low compare to other metals. In this project paper, nitriding process is carried out to modify the surface properties of MgAZ91D in enhancing its corrosion resistance. The nitriding process involved in this project is gas nitrding process with a specific end goal to identify the impact of the magnesium alloy on surface hardness, case depth and surface roughness by using pure nitrogen gas that can form a nitride layer to increase the surface hardness of the material. Different quality of nitride layer will be formed based on different setup of temperature and time used in this project. Five nitriding temperatures were set which were at 300 ̊C, 350 ̊C, 400 ̊C, 450 ̊C and 500 ̊C, for a nitriding period of 1 hour and 2 hours respectively. The specimens are to be magnified by metallographic test before and after nitride process like Optical Microscope (OM) for basic microstructure of MgAZ91D alloy. Mechanical tests are used to test and analysed the surface hardness and case depth of the nitride MgAZ91D using micro hardness testing machine such as Vickers Hardness test, Scratch test and Surface Roughness test to obtain the result of the performance of the nitride layer. The best setting of the nitriding process is concluded. The hardness of untreated material and nitride specimens are analysed. The best specimen is chosen which determines the life of the material and it improves the surface hardness, surface roughness and case depth for corrosion applications.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Petroleum
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 18 Jun 2019 09:34
Last Modified: 18 Jun 2019 09:34
URI: http://utpedia.utp.edu.my/id/eprint/19281

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...