Plasticity of dual-phase steels and clad steels in a tensile state of stress

Microstructural and mechanical behavior of a duplex stainless steel under hot working conditions

“…During this hot working sequence, microstructural changes related to the phase proportions, orientation, and morphology can take place, at the same time that the dynamic and static recovery and recrystallization act in the two ductile phases, ferrite and austenite. There are several works [13][14][15][16][17] that attempt to describe the plastic deformation behavior of two ductile phase alloys, by taking into account the influence of the phase morphology on the overall flow stress of a two-phase alloy. [6][7][8][9][10] However, behavioral differences are expected when the two phases are in a duplex stainless steel.…”

Formability of High‐Alloy Dual‐Phase Cr‐Ni Steels

“…As determined experimentally [3], the theory of stability limit can also be applied to the microstructural behaviour.…”

“…The crack removes the extra stress and the bar to local contraction of the ferrite, figure 6. This mechanism is repeated periodically until fracture is reached and manifested by the non-linear course the deformation force takes, figure 7 [3].…”

“…Introduction dal dcp > alp (3) as illustrated in figure l.The deformation stability limit can be characterized by the formula:…”

“…The clarification of poor formability is facilitated by analysing the course which the deformation force takes during the hot tensile test. The increase of the deformation force is not continuous when its stepwise curve is recorded [3]. dal dip = alp' (4) (5) Theoretical fundamentals…”