In the present study, surface mechanical attrition treatment (SMAT) and plasma nitriding were conducted on AISI 2205 steel. SMAT was effective in enhancing the surface hardness of the steel by about 80%. The influence of SMAT on the corrosion behaviour of the steel was studied in a 3.5 wt-% NaCl solution. Due to the stable and thicker passive layer, improved corrosion resistance was observed for the SMATed steel. However, nitrogen diffusion during plasma nitriding was impeded by the improved passivation, especially for the lower duration (30 min) of chemical etching/cleaning (i.e. sputter cleaning in hydrogen plasma) of the specimen's surface. Furthermore, high chemical etching duration (120 min) resulted in improved surface hardness and nitriding kinetics.
ShenL., WangL., WangY. and WangC.: ‘Plasma nitriding of AISI 304 austenitic stainless steel with pre-shot peening’, Surf. Coat. Technol., 2010,
204, 3222–3227. doi: 10.1016/j.surfcoat.2010.03.018
2.
GateyA. M., HosmaniS. S. and SinghR. P.: ‘Surface mechanical attrition treated AISI 304L steel: role of process parameters’, Surf. Eng., 2015, doi:10.1179/1743294415Y.0000000056.
3.
SunY. and BaileyR.: ‘Improvement in tribocorrosion behavior of 304 stainless steel by surface mechanical attrition treatment’, Surf. Coat. Technol., 2014,
253, 284–291. doi: 10.1016/j.surfcoat.2014.05.057
4.
ZhangH. W., HeiZ. K., LiuG., LuJ. and LuK.: ‘Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition Treatment’, Acta Mater., 2003,
51, 1871–1881. doi: 10.1016/S1359-6454(02)00594-3
5.
SreejithG., SunnyT., SahuJ.N. and SasikumarC., ‘Low temperature boronizing of surface nanostructured Ni-Cr-Mo steel using SMAT’, Mater. Sci. Forum, 2015,
830–831, 663–666. doi: 10.4028/www.scientific.net/MSF.830-831.663
6.
GateyA. M., HosmaniS. S., SinghR. K. P. and SuwasS.: ‘Surface engineering of stainless steel: Role of surface mechanical attrition treatment (SMAT)’, Adv. Mater. Res., 2013,
794, 238–247. doi: 10.4028/www.scientific.net/AMR.794.238
7.
LalehM., Kargar amdF.VelashjerdiM.: ‘Low temperature nitriding of nanocrystalline stainless steel and its effect on improving wear and corrosion resistance’, J. Mater. Eng. Perform., 2013,
22, 1304–1310. doi: 10.1007/s11665-012-0417-7
8.
CeminF., EcheverrigarayF. G., RoviniA. C., AmorimC. L. G., BassoR. L. O., BaumvolI. J. R. and FigueroaC. A.: ‘Influence of atomic and mechanical attrition on low temperature plasma nitriding of ferrous alloys’, Mater. Sci. Eng. A, 2010,
527, 3206–3209. doi: 10.1016/j.msea.2010.02.012
9.
ChemkhiM., RetraintD., RoosA., GarnierC., WaltzL., DemangelC. and ProustG.: ‘The effect of surface mechanical attrition treatment on low temperature plasma nitriding of an austenitic stainless steel’, Surf. Coat. Technol., 2013,
221, 191–195. doi: 10.1016/j.surfcoat.2013.01.047
10.
HuangG. R., TsaiW. Y., HuangJ. C. and HuC. K.: ‘Analytical modelling for ultrasonic surface mechanical attrition treatment’, AIP Adv., 2015,
5, (7), 077126. doi: 10.1063/1.4926811
11.
LuK. and LuJ.: ‘Nanostructured surface layer on the metallic materials induced by surface mechanical attrition treatment’, Mater. Sci. Eng. A, 2004,
375–377, 38–45. doi: 10.1016/j.msea.2003.10.261
12.
ZhengZ. J., GaoY., GuiY. and ZhuM.: ‘Corrosion behavior of nanocrystalline 304 stainless steel prepared by equal channel angular pressing’, Corros. Sci., 2012,
54, 60–67. doi: 10.1016/j.corsci.2011.08.049
13.
FuY., WuX., HanE., KeW., YangK. and JiangZ.: ‘Effect of cold work and sensitization treatment on the corrosion resistance of high nitrogen stainless steel in chloride solution’, Electrochim. Acta, 2009,
54, 1618–1629. doi: 10.1016/j.electacta.2008.09.053
14.
SplinterS. J., RofaghaR., MclntyreN. S. and ErbU.: ‘XPS characterization of the corrosion films formed on the nanocrystalline Ni-P alloys in sulphuric acid’, Surf. Interface Anal., 1996,
24, (3), 181–186. doi: 10.1002/(SICI)1096-9918(199603)24:3<181::AID-SIA92>3.0.CO;2-N
15.
KnönerG., ReimannK., RöwerR., SödervallU., and SchaeferH. E.: ‘Enhanced oxygen diffusivity in interfaces of nanocrystalline ZrO2⋅Y2O3’, Proc. Natl. Acad. Sci. U. S. A., 2003,
100, 3870–4781. doi: 10.1073/pnas.0730783100
16.
BahlS., ShreyasP., TrishulM. A., SuwasS. and ChatterjeeK.: ‘Enhancing the mechanical and biological performance of a metallic biomaterial for orthopedic applications through changes in the surface oxide layer by nanocrystalline surface modification’, Nanoscale, 2015,
7, (17), 7704–7716.
17.
DonikC., KocijanA., GrantJ. T., JenkoM., DrenikA. and PihlarB.: ‘XPS study of duplex stainless steel oxidized by oxygen atoms’, Corros. Sci., 2009,
51, 827–832. doi: 10.1016/j.corsci.2009.01.021
18.
GuoL. Q., LinM. C., QiaoL. J. and VolinskyA. A.: ‘Duplex stainless steel passive film electrical properties studied by in situ current sensing atomic force microscopy’, Corros. Sci., 2014,
78, 55–62. doi: 10.1016/j.corsci.2013.08.031
19.
SunY. and HarumanE.: ‘Influence of processing conditions on structural characteristics of hybrid plasma surface alloyed austenitic stainless steel’, Surf. Coat. Technol., 2008,
202, 4069–4075. doi: 10.1016/j.surfcoat.2008.02.022
20.
FigueroaC. A. and ‘AlvarezF.: ‘Hydrogen etching mechanism in nitrogen implanted iron alloys studied with in situ photoemission electron spectroscopy’, J. Vac. Sci. Technol. A, 2005,
23, (5), L9–L12. doi: 10.1116/1.2013322
21.
WangJ., LinY., YanJ., ZenD., ZhangQ., HuangR. and FanH.: ‘Influence of time on the microstructure of AISI 321 austenitic stainless steel in salt bath nitriding’, Surf. Coat. Technol., 2012,
206, 3399–3044. doi: 10.1016/j.surfcoat.2012.01.063
