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On the crack susceptibility of high alloyed tool steels during continuous casting and in the temperature region of hot working
Author(s) -
Thome Ralf,
Dahl Winfried
Publication year - 1995
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199501089
Subject(s) - liquidus , metallurgy , ductility (earth science) , continuous casting , ultimate tensile strength , materials science , die (integrated circuit) , microstructure , embrittlement , atmospheric temperature range , alloy , creep , thermodynamics , physics , nanotechnology
Hot tensile tests after applied prior melting down of the specimens were carried out on mainly ledeburitic tool steels and their strength and ductility were determined in the temperature range between liquidus and 900°C. The test parameters and specimen microstructures were adapted to the conditions and structures prevailing in continuous casting and primary hot working of blooms. The metallurgical processes leading to the embrittlement of the material were examined by means of metallographic investigations. The temperature ranges of internal crack susceptibility and low ductility were evaluated.