Melting of multipass surface tracks in steel incorporating titanium carbide powders

Shahjahan Mridha, A.N. Idriss, M.A. Maleque, I.L. Jaacob, Neville Baker

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Overlapping tracks were processed by melting preplaced titanium carbide (TiC) powder on steel surfaces using a tungsten inert gas torch. The tracks produced ~1.0 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.
LanguageEnglish
Pages1362-1369
Number of pages8
JournalMaterials Science and Technology
Volume31
Issue number11
Early online date20 Nov 2014
DOIs
Publication statusPublished - Aug 2015

Fingerprint

titanium carbides
Titanium carbide
Steel
Powders
Melting
melting
steels
particulates
Hardness
Noble Gases
hardness
Tungsten
Inert gases
torches
Dissolution
titanium carbide
rare gases
dissolving
tungsten
Cracks

Keywords

  • steel
  • welding torch melting
  • composites
  • coating
  • overlapping
  • microstructure
  • hardness

Cite this

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Melting of multipass surface tracks in steel incorporating titanium carbide powders. / Mridha, Shahjahan; Idriss, A.N.; Maleque, M.A.; Jaacob, I.L.; Baker, Neville.

In: Materials Science and Technology, Vol. 31, No. 11, 08.2015, p. 1362-1369.

Research output: Contribution to journalArticle

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AU - Mridha, Shahjahan

AU - Idriss, A.N.

AU - Maleque, M.A.

AU - Jaacob, I.L.

AU - Baker, Neville

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KW - steel

KW - welding torch melting

KW - composites

KW - coating

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