Tensile Deformation Behavior of Cu-Ni Alloys Having Micro Segregation

概要

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The mechanical properties of materials with segregation are, in general, inferior to those of materials with lea segregation after homogenization. An investigation was made in order to obtain the fundamental knowledge on the tensile deformation behavior of materials with micro segregation using Cu-Ni complete solid solution system alloys. This will be useful to understand the mechanical properties of weld me/al because the weld metals of auslenitic stainless steel and nonferrous metals have micro segregation. When the Ni content was small, little difference was observed between the stress-strain curves of a segregated specimen and that of a homogenized specimen. On the other hand, when the Ni content became larger, flow stress of the segregated specimen was smaller than that of the homogenized specimen, because the difference between the maximum Ni content and the minimum A7 content became larger and the stress-strain curve for each Ni content largely changed. The stress-strain curve of the segregated specimen was simulated well using the stress-strain curves of the homogenized specimens whose Ni contents corresponded to the maximum and the minimum of the segregated specimen.
社団法人溶接学会の論文
1986-10-01