In situ SEM tensile test of high-nitrogen austenitic stainless steels

Using tensile test and in situ SEM, the microstructures of two kinds of high-nitrogen austenitic stainless steels were investigated. Deformation mechanisms, especially slip bands and deformation twins, are discussed. Results show that the slip and twinning both occur during the tensile testing. Slip...

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Veröffentlicht in:Materials characterization 2006, Vol.56 (1), p.79-83
Hauptverfasser: Yuan, Z.Z., Dai, Q.X., Cheng, X.N., Chen, K.M., Pan, L., Wang, A.D.
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container_issue 1
container_start_page 79
container_title Materials characterization
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creator Yuan, Z.Z.
Dai, Q.X.
Cheng, X.N.
Chen, K.M.
Pan, L.
Wang, A.D.
description Using tensile test and in situ SEM, the microstructures of two kinds of high-nitrogen austenitic stainless steels were investigated. Deformation mechanisms, especially slip bands and deformation twins, are discussed. Results show that the slip and twinning both occur during the tensile testing. Slip bands stretch across each grain and are broadened during the tensile test and finally become microcracks. Solid solution strengthening is induced by nitrogen-alloying, which enhances the mechanical properties of austenitic stainless steels.
doi_str_mv 10.1016/j.matchar.2005.09.013
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subjects Applied sciences
Austenitic stainless steels
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Mechanical property
Metals. Metallurgy
Nitrogen
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
SEM
Solidification
Tensile test
title In situ SEM tensile test of high-nitrogen austenitic stainless steels
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