Microstructures and surface performance of laser melting deposited composites on a Ti alloy
This work is based on the dry sliding wear and cyclic oxidation of composites deposited on a TA1 substrate using laser melting deposition (LMD) technique, the parameters of which are such as to provide almost crack-free composites with minimum dilution and very low porosity. To our knowledge, it is...
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| Format: | Article |
| Language: | English |
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De Gruyter
2014-03-01
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| Series: | Science and Engineering of Composite Materials |
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| Online Access: | https://doi.org/10.1515/secm-2013-0066 |
| Summary: | This work is based on the dry sliding wear and cyclic oxidation of composites deposited on a TA1 substrate using laser melting deposition (LMD) technique, the parameters of which are such as to provide almost crack-free composites with minimum dilution and very low porosity. To our knowledge, it is the first time that Stellite SF12-Al-FeSi-B4C mixed powders are deposited as hard composites by LMD technique. Scanning electron microscopy results indicate that such composites with metallurgical joint to a TA1 substrate were formed. It is noted that many nanocrystalline/amorphous phases are also produced, which improve the surface performance of such composites. Compared with the TA1 substrate, improvement of cyclic oxidation and wear resistance are obtained for such composites. |
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| ISSN: | 0792-1233 2191-0359 |