Basic Properties of Steel 15NiCuMoNb5 (WB36) Steel Workpiece

E. A. Grin’1, A. V. Pchelintsev1, A. V. Zelenskii1, V. A. Sarkisyan1
1All-Russian Heat Engineering Institute, Moscow, Russia

Tóm tắt

Metal of an experimental plate (workpiece) specially made of 15NiCuMoNb5 (WB36) steel, which imitates a full-scale fragment of a boiler drum, is studied. Chemical composition and microstructure are analyzed, and metal and welded joint hardness are determined taking account of the distribution of these characteristics over the plate thickness. It is shown that composition, structure and hardness of the base metal and welded joint depend weakly upon location of the zone studied within the plate thickness. Small distinctive features characterize only the metal of the heat-affected zone in the transition area from the main part to the root of the weld, due to a higher level of heat input in this area during welding.

Tài liệu tham khảo

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