Surface mechanical attrition treatment of additively manufactured 316L stainless steel yields gradient nanostructure with superior strength and ductility

S Ghosh, N Bibhanshu, S Suwas… - Materials Science and …, 2021 - Elsevier
Surface severe plastic deformation (S 2 PD) of additively manufactured/three-dimensional
(3D) printed metallic parts is gaining increased attention as a post-manufacturing operation …

Martensitic transformation dominated tensile plastic deformation of nanograins in a gradient nanostructured 316L stainless steel

TH Fang, NR Tao - Acta Materialia, 2023 - Elsevier
We systematically investigated the tensile deformation mechanisms and mechanical
properties of a gradient nanograined AISI 316 L stainless steel prepared by means of …

Elucidating microstructural evolution and strengthening mechanisms in nanocrystalline surface induced by surface mechanical attrition treatment of stainless steel

S Bahl, S Suwas, T Ungar, K Chatterjee - Acta Materialia, 2017 - Elsevier
Surface mechanical attrition treatment (SMAT) is a high strain and strain rate severe plastic
deformation (SPD) technique for surface nanocrystallization of metals. The aim of this study …

Surface nanocrystallization and gradient microstructural evolutions in the surface layers of 321 stainless steel alloy treated via severe shot peening

S Pour-Ali, AR Kiani-Rashid, A Babakhani - Vacuum, 2017 - Elsevier
The gradient nanocrystalline structure from the top surface to the subsurface layers of 321
austenitic stainless steel alloy was fabricated by means of severe shot peening. The …

Superior mechanical properties and deformation mechanisms of a 304 stainless steel plate with gradient nanostructure

YT Sun, X Kong, ZB Wang - International Journal of Plasticity, 2022 - Elsevier
Spatially gradient microstructures have shown a promising application in enhancing
strength-ductility synergy of engineering metals such as austenitic stainless steels. However …

Strength and ductility of 316L austenitic stainless steel strengthened by nano-scale twin bundles

FK Yan, GZ Liu, NR Tao, K Lu - Acta Materialia, 2012 - Elsevier
By means of dynamic plastic deformation (DPD) with high strain rates, a bulk nanostructured
316L austenitic stainless steel consisting of nano-sized grains embedded with bundles of …

Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment

HW Zhang, ZK Hei, G Liu, J Lu, K Lu - Acta materialia, 2003 - Elsevier
A nanostructured surface layer was formed on an AISI 304 stainless steel with low stacking-
fault energy by means of the surface mechanical attrition treatment (SMAT). The …

Stabilizing nanograined austenitic stainless steel with grain boundary relaxation

Y Jiang, X Zhou, XY Li, K Lu - Acta Materialia, 2023 - Elsevier
Grain boundary (GB) relaxation can be triggered by interaction of GB with partial
dislocations during plastic deformation, which is effective to stabilize nanograined structures …

Microstructures and mechanical properties of a gradient nanostructured 316L stainless steel processed by rotationally accelerated shot peening

JS Li, WD Gao, Y Cao, ZW Huang… - Advanced …, 2018 - Wiley Online Library
Rotationally accelerated shot peening (RASP) is an innovative surface nanocrystallization
technique, which can effectively produce gradient nanostructured layers on bulk metallic …

Achieving excellent mechanical properties in type 316 stainless steel by tailoring grain size in homogeneously recovered or recrystallized nanostructures

M Liu, W Gong, R Zheng, J Li, Z Zhang, S Gao, C Ma… - Acta Materialia, 2022 - Elsevier
One hopeful path to realize good comprehensive mechanical properties in metallic materials
is to accomplish homogeneous nanocrystalline (NC) or ultrafine grained (UFG) structure …