Differences in Structural Transformations of Supercooled Austenite Exemplified in Selected CCT-W Diagrams (for Welding Conditions) and CCT Diagrams for Heat Treatment Conditions
Mirosław Łomozik
The article presents differences in the character of thermal cycle changes in welding conditions compared with the cycle of a traditional heat treatment, discusses the essence of austenite transformations in steels in welding conditions compared with heat treatment conditions, presents test results in the form of CTT-W diagrams (i.e. for welding conditions) for X10CrMoVNb9-1 (T/P91), X10CrWMoVNb9-2 (T/P92), X12CrCoWVNb12-2-2 (VM12-SHC), 7CrMoVTiB10-10 (P24), 10CrMo9-10 and S355JR grade structural steels and compares CTT-W diagrams with CCT diagrams for typical heat treatment conditions.
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