Microstructure evolution in boronized inconel 718 superalloy
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
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| Title |
Microstructure evolution in boronized inconel 718
superalloy
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| Creator |
Joshi, Akashy J
Singh, Rajkumar P Hosmani, Santosh S |
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| Subject |
Microtechnology
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| Description |
This study was focused on the pack-boronizing of Inconel 718 alloy tunderstand the microstructure evolution at 950 and 1050°C. Cross-section of the specimens boronized at 950°C showed the formation of silicide top layer and boride layer beneath to it. The separate layer of silicide was not observed for the specimens boronized
at 1050°C. Ni-, Cr- and Fe- borides were observed in the boride layer. Unlike 950 °C, borides of various shapes, like the square, pentagonal and hexagonal, were observed in boride layer at 1050°C. Boride layer showed very good adhesion to the substrate. Maximum hardness of the boride layer was about 1600-2000 HV, which was about 4-6
times the hardness of the core. On the basis of obtained results, mechanisms of the microstructure development in the boride layer were proposed.
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| Publisher |
CSIR- National Metallurgical Laboratory ,Jamshedpur
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| Date |
2017
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://eprints.nmlindia.org/7746/1/(2)_ISSUE-1_AKSHAY.pdf
Joshi, Akashy J and Singh, Rajkumar P and Hosmani, Santosh S (2017) Microstructure evolution in boronized inconel 718 superalloy. Journal of Metallurgy and Materials Science, 59(1) . pp. 11-21. |
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| Relation |
http://eprints.nmlindia.org/7746
http://eprints.nmlindia.org/7746/ |
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