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Surface Crack and Organization of Hot Rolled S31803 Duplex Stainless Steel Bars
Ist Teil von
Applied Mechanics and Materials, 2014-10, Vol.670-671 (Applied Mechanics, Materials and Manufacturing IV), p.41-45
Ort / Verlag
Zurich: Trans Tech Publications Ltd
Erscheinungsjahr
2014
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
In bar rolling of S31803 duplex stainless steel, the surface crack is easy to appear. Through the observation on the microstructure, ferrite and austenite morphology and phase ratio were analyzed. The surface cracks of S31803 duplex stainless steel bar is mainly because of the dual phase microstructure softening mechanism of different in thermal processing, and the double phase stainless steel heat plasticity decrease. When the ferrite and austenite proportion close, and the heating temperature is too high, to reduce the binding force between the grains of billet surface, easy to cause the crack surface of a bar.