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Please use this identifier to cite or link to this item: http://idr.iitbbs.ac.in/jspui/handle/2008/1444
Title: Characterization of Cast and Forged (C&F) Gr. 91 Steel in Different Heat Treatment Condition
Authors: Pandey C.
Mahapatra M.M.
Kumar P.
Saini N.
Keywords: Charpy
Microstructure
Normalizing
P91
Tempering
Tensile properties
Issue Date: 2017
Citation: 12
Abstract: The present research work deals with the results of influence of different heat treatment conditions on the microstructure stability and mechanical properties of high-chromium X10CrMoVNNB9-1(P91) cast and forged (C&F) P91 steel. The C&F P91 steel was subjected to various tempering condition in the temperature range of 350�760 �C and tempering time of 2 h, after the normalizing at 1040 �C for 40 min. The steel was also subjected to furnace cooled and water quenched heat treatment. Tempering at 650 and 760 �C produced the fully tempered lath martensitic structure with M23C6, M7C3, M3C and MX precipitates along the prior austenite grain boundaries, lath boundaries and matrix region. Tempering at 350 and 1000 �C produced the partially tempered columnar laths and untempered columnar laths martensite, respectively. The tempering time was also varied from 2 to 8 h for fixed tempering temperature of 760 �C. The optimum microstructure evolution was obtained for 6 h of tempering at 760 �C that led to improved mechanical properties. � 2017 The Indian Institute of Metals - IIM
URI: http://dx.doi.org/10.1007/s12666-017-1144-4
http://10.10.32.48:8080/jspui/handle/2008/1444
Appears in Collections:Research Publications

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