Surface roughening during uniaxial and equi-biaxial stretching of 70-30 brass sheets

Surface roughness of a hot-dipped galvanized sheet steel as a function of deformation mode

“…8, the roughness values do not consistently match with iso-ε vme lines. The lack of correspondence between the roughness and strain is somewhat contradictory to previous investigations, which found that roughness is a function of ε vme and grain size, but not dependent upon strain path [5,6].…”

“…The strain level, as quantified by the VonMises equivalent strain [4] and grain size, are cited in the literature as being the most important factors affecting the surface roughening during deformation [5,6]. For a plastically deformed material, the VonMises equivalent strain is…”

Deformation Induced Surface Roughening of Austenitic Stainless Steels

“…The linear relationship between R a and e l can be expressed as; (2) where, R ai is mean roughness for a given strain, R ao is the initial surface roughness (Table 3) Ϫ3 for both of the examined steel sheets as a material property. Similar conclusion was also made by Mahmudi and Mehdizadeh 7) for a 70/30 brass sheet. On the other hand, Fig.…”

“…Since rough surfaces require more effort for polishing and/or painting after forming processes, deformation induced surface roughening of metallic sheets has been widely examined. [4][5][6][7][8][9][10] In the present study deformation induced surface roughening behavior of two austenitic stainless steel sheets was compared. These steel sheets had been imported from two different countries by a Turkish firm for production of cups and other kitchenware by sheet metal forming processes.…”

Surface roughening and color changes of coated aluminum sheets during plastic straining

“…Attention was placed on the dependence of roughening on grain size, strain, and crystallographic texture. Early studies showed that surface roughness increases with the von Mises or, respectively, through-thickness strain and with the grain size [3][4][5][6][7][8][9][10]. At low strains both dependencies were often found to be linear.…”