Effect of surface nanocrystallization on the corrosion behaviour of AISI 409 stainless steel |
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Authors: | T Balusamy |
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Affiliation: | National Metallurgical Laboratory, Madras Centre, CSIR Madras Complex, Taramani, Chennai 600 113, India |
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Abstract: | The influence of surface mechanical attrition treatment (SMAT) on the corrosion behaviour of AISI 409 grade stainless steel in 0.6 M NaCl was studied. SMAT using 2 mm ∅ 316L stainless steel (SS) balls for 15, 30 and 45 min and 5 mm ∅ balls for 15 min offers a better corrosion protective ability. In contrast, treatment using 5 mm ∅ balls for 30 and 45 min and by using 8 mm ∅ balls for 15, 30 and 45 min, induces microstrain and defect density that results in a decrease in corrosion resistance. |
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Keywords: | A Steel B EIS B Polarization B XRD C Passivity |
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