Plastic Deformation and Damage Behavior of AL6XN Super-Austenitic Stainless Steels

Chao Qun Ma; Qi Qiang Duan; Xiao Wu Li

doi:10.4028/www.scientific.net/AMR.79-82.1951

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 79-82Plastic Deformation and Damage Behavior of AL6XN...

Plastic Deformation and Damage Behavior of AL6XN Super-Austenitic Stainless Steels

Abstract:

Tensile and compressive deformation and damage behaviors of Al6XN super-austenitic stainless steels were examined at different strain rates. The deformation and fracture surfaces were characterized by scanning electron microscopy (SEM). It was found that the uniaxial deformation (tensile or compressive) behaviors of Al6XN stainless steel shows a low strain rate sensitivity over the range of 10-4s-1 - 10-2s-1. The tensile and compressive yield strengths measured are nearly comparable. The steel shows a good tensile plasticity. Dislocation slip deformation is the main characteristic of uniaxial deformation. All fracture surfaces induced by tensile deformation at different strain rates can be divided into two parts, i.e., fibrous zone and shear lip zone. The fibrous zone consists of dimples with a bimodal size.

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Periodical:

Advanced Materials Research (Volumes 79-82)

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1951-1954

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.79-82.1951

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Online since:

August 2009

Authors:

Chao Qun Ma, Qi Qiang Duan, Xiao Wu Li

Keywords:

Austenitic Stainless Steel, Compression, Damage, Fracture Surface, Plastic Deformation, Strain Rate, Tension

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