Effect of surface nanocrystallization induced by fast multiple rotation rolling on hardness and corrosion behavior of 316L stainless steel

被引：107

作者：

Chui, Pengfei ^{[1
]}

Sun, Kangning ^{[1
]}

Sun, Chang ^{[1
,2
]}

Yang, Xiuqing ^{[1
]}

Shan, Ting ^{[1
]}

机构：

[1] Shandong Univ, Engn Ceram Key Lab Shandong Prov, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China

[2] Shandong Supervis & Inspect Inst Prod Qual, Jinan 250100, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 15期

基金：

中国博士后科学基金;

关键词：

Surface nanocrystallization; Fast multiple rotation rolling; 316L stainless steel; Microhardness; Surface roughness; Corrosion resistance; LOW-CARBON STEEL; MECHANICAL ATTRITION TREATMENT; ELECTRON WORK FUNCTION; WEAR PROPERTIES; ALLOY; ROUGHNESS; EVOLUTION; FRICTION; COPPER; LAYER;

D O I：

10.1016/j.apsusc.2011.02.127

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A nanostructured layer was fabricated by using fast multiple rotation rolling (FMRR) on the surface of 316L stainless steel. The microstructure in the surface was characterized by transmission electron microscopy and X-ray diffraction. The effects of FMRR on the microhardness, surface roughness and corrosion behavior of the stainless steel were investigated by microhardness measurements, surface roughness measurements, potentiodynamic polarization curves and pitting corrosion tests. The surface morphologies of pitting corrosion specimens were characterized by scanning electron microscopy. The results show that FMRR can cause surface nanocrystallization with the grain size ranges from 6 to 24 nm in the top surface layer of the sample. The microhardness of FMRR specimen in the top surface layer remarkably increases from 190 to 530 HV. However, the surface roughness slightly rises after FMRR treatment. The potentiodynamic polarization curves and pitting corrosion tests indicated that the FMRR treated 316L stainless steel with a surface nanocrystallized layer reduced the corrosion resistance in a 3.5% NaCl solution and enhanced the pitting corrosion rate in a FeCl3 solution. Possible reasons leading to the decrease in corrosion resistance were discussed. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：6787 / 6791

页数：5

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