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Influence of the welding process on the martensitic and dual phase high strenght steels

Authors: Hanus Petr | Schmidová Eva

Year: 2016

Type of publication: článek v odborném periodiku

Name of source: Manufacturing technology

Page from-to: 702-707

Titles:

Language	Name	Abstract	Keywords
cze	Vliv svařování na martenzitické a dvoufázové ocele	Článek pojednává o tepelném vlivu, který vzniká při svařování na mechanické vlastnosti a zároveň popisuje moderní metody vyhodnocování těchto degradovaných míst u zmiňovaných ocelí.	martenzitická ocel; dvoufázová ocel; tepelně ovlivněné oblasti; mez kluzu; indentace
eng	Influence of the welding process on the martensitic and dual phase high strenght steels	The subject of the study are martensitic 22MnB5 steel and dual phase steel with the ferrite-martensitic structure, which are used in the automotive industry. The main purpose of the performed analyses is a study of strength differences in heat affected zones of the spot welding. For the needs of the strength decrease assessment, the critical layer of the heat affected area was experimentally simulated by different thermal influence procedures. The aim of the work is to determine the most suitable methodology for evaluating the local changes of the elastic-plastic material response. The yield strength and the deformation hardening are required constructions of safety carbody parts.	martensitic steel; dual phase steel; heat affected zones; yield strength; weld-joint fractures; indentation