The surface topography of aluminum and titanium alloys after plastic deformation is investigated using white-light interferometry. The surface profiles of tensile samples in the longitudinal and transverse directions are analyzed. The surface develops self-affine roughness on length scales up to a correlation length that is of the same order of magnitude as the grain size in the two directions. The difference in correlation lengths between the two directions is large for aluminum alloy and small for titanium alloy Initially the roughness values in the two directions remain the same and then become different with strain increase. It is shown that the strains in the two directions influence the profile. The relationship between the 3D surface roughness parameter (Sq) and strain appears to be linear, and a linear relation is also observed between surface area increment and strain. [DOI: 10.1115/1.4002107]
部门归属
[zhou, x. h.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [su, x.] ningbo univ, fac sci, ningbo 315211, zhejiang, peoples r china.;zhou, xh (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;yefengzh@163.com mrs.an.1988@holmail.com
X. H. Zhou,X. Su. Surface Roughening During Deformation of Polycrystalline Aluminum and Titanium Alloys[J]. Journal of Engineering Materials and Technology-Transactions of the Asme,2010,132(4).
APA
X. H. Zhou,&X. Su.(2010).Surface Roughening During Deformation of Polycrystalline Aluminum and Titanium Alloys.Journal of Engineering Materials and Technology-Transactions of the Asme,132(4).
MLA
X. H. Zhou,et al."Surface Roughening During Deformation of Polycrystalline Aluminum and Titanium Alloys".Journal of Engineering Materials and Technology-Transactions of the Asme 132.4(2010).
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