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Melting of multipass surface tracks in steel incorporating titanium carbide powders

Mridha, Shahjahan and Md Idriss, Ahmed Nazrin and Maleque, Md. Abdul and Yaacob, Iskandar Idris and Baker, T. Neville (2015) Melting of multipass surface tracks in steel incorporating titanium carbide powders. Materials Science and Technology, 31 (11). pp. 1362-1369. ISSN 0267-0836

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Abstract

Overlapping tracks were processed by melting preplaced titanium carbide (TiC) powder on steel surfaces using a tungsten inert gas torch. The tracks produced y1?0 mm melt depth free from cracks, but occasional pores were observed. The microstructure consisted of unmelted and partially melted TiC particulates together with reprecipitated TiC particles, which were prominent in tracks processed in the initial stage. A greater number of reprecipitated globular and cubic TiC particles were observed in tracks processed in the later stages, indicating more dissolution of TiC particulates from the overlapping operation. Those multitracks processed in the initial stage developed a maximum hardness of 850–1000 HV, which was lower in most other tracks, although comparable hardness values were recorded in the last track.

Item Type: Article (Journal)
Additional Information: 6103/45594
Uncontrolled Keywords: Steel, Welding torch melting, Composite coating, Overlapping, Microstructure, Hardness
Subjects: T Technology > T Technology (General) > T173.2 Technological change
T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
T Technology > TN Mining engineering. Metallurgy
T Technology > TS Manufactures > TS200 Metal manufactures. Metalworking
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Prof Dr. M A Maleque
Date Deposited: 05 Nov 2015 15:19
Last Modified: 25 May 2016 15:35
URI: http://irep.iium.edu.my/id/eprint/45594

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