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Effect of Residual Elements on Hot‐Crack Susceptibility of Austenitic Stainless Steel
Author(s) -
Scheller Piotr R.,
Bleck Wolfgang,
Flesch Roman
Publication year - 2004
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.200405827
Subject(s) - materials science , metallurgy , austenite , liquidus , microstructure , austenitic stainless steel , ultimate tensile strength , annealing (glass) , continuous casting , charpy impact test , alloy , corrosion
After partial melting and solidification of cylindrical samples hot tensile tests were performed on austenitic stainless steels containing residual elements such as copper, tin and lead as well as calcium and magnesium. Using well controlled cooling conditions down to the testing temperature a radially solidified microstructure in the test zone of the samples was achieved. The testing material was prepared by remelting of base material from the industrial production and addition of single elements in the vacuum induction furnace. The maximum strength and the reduction of area were determined in the temperature range between liquidus and 1100°C. With regard to the reheating and hot rolling process some samples were thermally treated under industrial conditions. The ductility of the material at temperatures down to 950°C was tested and the effect of annealing was evaluated. Recommendations for material processing by continuous casting and hot rolling were derived from the tests performed.