Melting of multipass surface tracks in steel incorporating titanium carbide powders
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 p...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Maney Online
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/45594/1/P_103_2015_MST.pdf http://irep.iium.edu.my/45594/4/45594-_wos_ans_scopus.pdf http://irep.iium.edu.my/45594/ http://www.maneyonline.com/doi/abs/10.1179/1743284714Y.0000000712?journalCode=mst |
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| Summary: | 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. |
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