Science and Technology of Welding & Joining · 2004 · 18 citations · 6 references
Natural SciencesMaterials EngineeringMaterials ScienceMetallic MaterialsMetallurgyStructural MaterialsAlloysCreep DeformationHeat-affected ZoneMetalsPhysical MetallurgySteel MaterialsCreep ResistanceHardnessHeat-affected Zone MicrostructureHeat-affected Zone SofteningMetallurgical CharacterizationMetallurgical MicrostructureWeld MicrostructureWelded Joints
The microstructural characterisation of welded joints subject to creep and the formation of the heat affected zone (HAZ) in tungsten alloyed high temperature 9% chromium steels is extremely important in modern power station construction. In these investigations, creep specimens were made available taken from fabrication welds in steel castings. The results of the hardness measurements carried out are presented, together with the qualitative and quantitative results of metallographical investigations. Special attention is paid to softening in the HAZ and the effect which this has on the creep resistance and fracture behaviour of welded joints. TEM investigations with the aid of energy filtering (EFTEM) were used to clarify the mechanisms taking place. The results of the metallurgical investigations will be compared with the results obtained in actual welds.
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Stan A. David · JOM · 1986 · 210 citations
Engineering, Manufacturing Engineering, Materials Science +11
Materials for Advanced Power Engineering 1998
Jacqueline Lecomte‐Beckers, Bernd Kuhn, J.E. Oakey et al. · 1998 · 101 citations
Natural Sciences, Electrical Engineering, Materials Science +3