Microstructural investigations on simulated intercritical heat-affected zone of boron modified P91-steel
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
View Archive Info| Field | Value | |
| Title |
Microstructural investigations on simulated intercritical heat-affected zone of boron modified P91-steel
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| Creator |
Khajuria, A
Modassir, A Bedi, R Kumar, Rajneesh Ghosh, M Das, C R |
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| Subject |
Materials Charcterization
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| Description |
Conventional P91 and boron modified P91-steels were considered in the present investigation. Using Gleeble, weld intercritical heat-affected zone (ICHAZ) was processed. Conventional microscopy was done along with electron back-scattered diffraction for both specimens. Lath boundary of martensite was more, and preferably oriented for P91B-ICHAZ than P91-ICHAZ. Lattice strain was high and lath mobility was low for P91B-ICHAZ in comparison to P91-ICHAZ. Large fraction of ferritic grain structure (39.1%) and small fraction of fresh martensitic grain structure (9.5%) in P91-ICHAZ, whereas small fraction of ferritic grain structure (10.7%) and large fraction of fresh martensitic grain structure (32.7%) in P91B-ICHAZ was observed. However, tempered martensite exhibited meager variation. These differences between ICHAZ simulations were attributed to the presence of 100ppm-boron in P91B-steel.
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| Publisher |
Taylor & francis inc.
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| Date |
2020
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| Type |
Article
PeerReviewed |
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| Relation |
https://doi.org/10.1080/02670836.2020.1784543
http://eprints.nmlindia.org/8250/ |
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| Identifier |
Khajuria, A and Modassir, A and Bedi, R and Kumar, Rajneesh and Ghosh, M and Das, C R (2020) Microstructural investigations on simulated intercritical heat-affected zone of boron modified P91-steel. Materials Science and Technology, 36(13) (IF-1.835).
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