Properties of heat affected zone of welded joints in CrMoV and CrMoNiV steels at elevated temperatures and their reheat cracking susceptibility

CrMoNiV and CrMoV steels reheat and under bead cracking are evaluated by annealing the steels at 1300 deg C and isothermal tensile testing up to 780 deg C. At 550-600 deg C, the steels had a minimum in reduction in area and showed a crystalline fracture with sulfur and Cr precipitates on the fractur...

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Bibliographic Details
Published in:Welding international 1990-01, Vol.4 (8), p.653-660
Main Authors: Magula, V, Smida, T, Sirotova, D
Format: Article
Language:English
Online Access:Get full text
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Summary:CrMoNiV and CrMoV steels reheat and under bead cracking are evaluated by annealing the steels at 1300 deg C and isothermal tensile testing up to 780 deg C. At 550-600 deg C, the steels had a minimum in reduction in area and showed a crystalline fracture with sulfur and Cr precipitates on the fracture surface. Also, the specimens were heated to 1300 deg C, cooled to 550-600 deg C, and loaded to 300-700 MPa. The results showed stress relaxation took place by creep. (Original in Czech). Graphs, Photomicrographs. 5 ref.--R.L.A.
ISSN:0950-7116
1754-2138
DOI:10.1080/09507119009447799