Creep assessment of overheated grade 9Cr steels for decision making on plant integrity

• Main Author: Ng, Guat Peng
• Format: Thesis
• Language: English; English
• Published: 2014
• Subjects: T Technology (General); TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.utem.edu.my/id/eprint/14885/1/Creep%20Assessment%20Of%20Overheated%20Grade%209Cr%20Steels%20For%20Decision%20Making%20On%20Plant%20Integrity%2024pages.pdf; http://eprints.utem.edu.my/id/eprint/14885/2/Creep%20assessment%20of%20overheated%20grade%209r%20steels%20for%20decision%20making%20on%20plant%20integrity.pdf; http://eprints.utem.edu.my/id/eprint/14885/; https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=92066

Alloy steels Gr. 91 (9Cr1MoVNb) and Gr.92 (9Cr0.5Mo1.8WVNb) are commonly used to construct supercritical and ultra supercritical boilers. The martensitic properties of both alloys require post weld heat treatment (PWHT) as mandatory process after welding. In the past experience at TNB power plants,...