Characteristic of MAG welded joints of 22MnB5 steel grade for automotive industry
作者： Tomasz Pfeifer , Marek S. Węglowski
关键词:
摘要: S u m a r y Results of investigation MAG 22MnB5 steel welds have been presented. The influence welding condition on mechanical properties and microstructural characteristic pipe joints ∅90x3,6 tensile strength welded are slightly lower than that the base material. maximum hardness in heat affected zone (HAZ) without preheating exceed 380HV10, simultaneously up to 350°C caused decrease 266HV10. microstructure weld is mainly composed bainite ferrite. In HAZ bainite, ferrite martensite present. results technological trials destructive examination indicate useful technology join pipes.
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