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

H. W. Zhang; Z. K. Hei; G. Liu; J. Lu; K. Lu

doi:10.1016/S1359-6454(02)00594-3

Author(s)

H. W. Zhang
Z. K. Hei
G. Liu
J. Lu
K. Lu

Detail(s)

Original language	English
Pages (from-to)	1871-1881
Journal / Publication	Acta Materialia
Volume	51
Issue number	7
Publication status	Published - 18 Apr 2003
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/S1359-6454(02)00594-3 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-0037453216&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(cca21a04-02fc-477a-ae4f-aed65cfe7927).html

Abstract

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 microstructure of the surface layer of the SMATed sample was characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and cross-sectional TEM observation was performed to reveal the deformation-driven grain refinement mechanism for the f.c.c. materials with very low stacking-fault energy during SMAT. The grain refinement process in the surface layer involves formation of planar dislocation arrays and twins in deformed grains, twin-twin intersections leading to grain subdivision and a martensite transformation as well, and formation of randomly orientated refined crystallites. The formation of nanocrystallites in the top surface layer was ascribed to the much large strain and strain rate, as well as the multidirectional repetitive loading. © 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

Research Area(s)

AISI 304 stainless steel, Grain refinement mechanism, Mechanical twins, Nanostructured material, Surface mechanical attrition treatment

Citation Format(s)

[ RIS ] [ BibTeX ]

Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment. / Zhang, H. W.; Hei, Z. K.; Liu, G. et al.
In: Acta Materialia, Vol. 51, No. 7, 18.04.2003, p. 1871-1881.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Zhang, HW, Hei, ZK, Liu, G, Lu, J & Lu, K 2003, 'Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment', Acta Materialia, vol. 51, no. 7, pp. 1871-1881. https://doi.org/10.1016/S1359-6454(02)00594-3

Zhang, H. W., Hei, Z. K., Liu, G., Lu, J., & Lu, K. (2003). Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment. Acta Materialia, 51(7), 1871-1881. https://doi.org/10.1016/S1359-6454(02)00594-3

Zhang HW, Hei ZK, Liu G, Lu J, Lu K. Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment. Acta Materialia. 2003 Apr 18;51(7):1871-1881. doi: 10.1016/S1359-6454(02)00594-3

Zhang, H. W. ; Hei, Z. K. ; Liu, G. et al. / Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment. In: Acta Materialia. 2003 ; Vol. 51, No. 7. pp. 1871-1881.