Welded Zones of some Cr-Mo steels are susceptible to the embrittlement when their weldments are used for high temperature services. This embrittlement appears as the phenomena of the low-ductility creep-fracture (LDCP), and the temper-embrittlement induced by creep (TEIC). A system which reproduces those phenomena in laboratory was proposed in this paper. This system was composed of the simulator of weld-thermal-cycle and the machine for creep-loading. The method and conditions for using this system were discussed in detail. Some experiments on the LDCF of 1 1/4Cr-1/2Mo steel proved this system to be very useful for the investigations of the LDCF and TEIC.
雑誌名
Research reports of the Faculty of Engineering, Mie University
System for Simulating the Embrittlement induced by Creep in Steel Weld
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