Influence of stainless steel specimen topography on micro-abrasion and micro-abrasion-corrosion

被引:16
作者
Ardila, M. A. N. [1 ]
Labiapari, W. S. [1 ,2 ]
Costa, H. L. [1 ,3 ]
de Mello, J. D. B. [1 ]
机构
[1] Univ Fed Uberlandia, Uberlandia, MG, Brazil
[2] Aperam South Amer, Sao Paulo, Brazil
[3] Univ Fed Rio Grande, Rio Grande, Brazil
关键词
Microabrasion-corrosion; Friction; Wear mechanisms; Surface topography; Abrasive dynamics; SURFACE-ROUGHNESS; ELECTROCHEMICAL-BEHAVIOR; PITTING CORROSION; ACOUSTIC-EMISSION; WEAR; 304-STAINLESS-STEEL; TRIBOCORROSION; TRANSITIONS; 2-BODY; H2SO4;
D O I
10.1016/j.wear.2019.01.011
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This work carried out a systematic analysis to help understanding how surface roughness and relative orientation between surface topography and direction of abrasive entrainment can affect particle dynamics during both pure microabrasion and microabrasion-corrosion. For that, tests were carried out in AISI 304 austenitic stainless steel test specimens using a recently developed microabrasion-corrosion tester. A 3D load cell ensures controlled application and measurement of forces during the tests. For the microabrasion tests, a slurry composed of small (phi =2.5 mu m) silica particles dispersed in distilled water at a concentration of 20wt% was employed, whereas for the microabrasion corrosion tests the distilled water in the slurry was substituted by a corrosive solutions in distilled water (1 N H2SO4). Potentiodynamic curves varying from cathodic potentials into the transpassive region were obtained within the course of duration of each microabrasion-corrosion test. The specimens were ground using two different SiC papers (#80 and #4000) to vary their surface topography and were tested with the grooves oriented perpendicular and parallel to the direction of rotation of the ball. Although the effect of surface topography was slight under pure microabrasion conditions, it was more significant under microabrasion-corrosion conditions. It was proposed that under microabrasion conditions, the formation of a low friction passive layer on the specimens made particle entrainment more difficult and therefore the relative orientation between surface topography and ball rotation had a stronger effect on the amount of abrasives that entered the contact, affecting wear rates. Grooves parallel to the rotation of the sphere increased wear rates under microabrasion-corrosion conditions when compared with grooves oriented perpendicular to the contact. Parallel grooves also resulted in higher passivation currents than perpendicular grooves, probably due to more severe damage to the passive layer caused by more abrasives into the contact
引用
收藏
页码:1482 / 1495
页数:14
相关论文
共 51 条
[1]   Wear-mode mapping for the micro-scale abrasion test [J].
Adachi, K ;
Hutchings, IM .
WEAR, 2003, 255 :23-29
[2]   The effects of ball surface condition in the micro-scale abrasive wear test [J].
Allsopp, DN ;
Trezona, RI ;
Hutchings, IM .
TRIBOLOGY LETTERS, 1998, 5 (04) :259-264
[3]  
[Anonymous], 2005, Statistics for Experimenters: Design, Innovation and Discovery
[4]  
[Anonymous], 1991, G5997 ASTM
[5]   THE CORROSION OF IRON IN SULFATE-SOLUTIONS AT PH=0-2 [J].
BALA, H .
ELECTROCHIMICA ACTA, 1984, 29 (01) :119-129
[6]   Effect of cold-working in the passive behavior of 304 stainless steel in sulfate media [J].
Barbucci, A ;
Cerisola, G ;
Cabot, PL .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (12) :B534-B542
[7]   The cumulative effect of alloying elements N, W, Mo and Cu on the corrosion behaviour of 17Cr-13Ni stainless steel in 2 N H2SO4 [J].
Belfrouh, A ;
Masson, C ;
Vouagner, D ;
DeBecdelievre, AM ;
Prakash, NS ;
Audouard, JP .
CORROSION SCIENCE, 1996, 38 (10) :1639-1648
[8]   Synergistic effects of micro-abrasion-corrosion of UNSS30403, S31603 and S32760 stainless steels [J].
Bello, J. O. ;
Wood, R. J. K. ;
Wharton, J. A. .
WEAR, 2007, 263 (1-6 SPEC. ISS.) :149-159
[9]   SURFACE-ROUGHNESS AND THE METASTABLE PITTING OF STAINLESS-STEEL IN CHLORIDE SOLUTIONS [J].
BURSTEIN, GT ;
PISTORIUS, PC .
CORROSION, 1995, 51 (05) :380-385
[10]   Effect of surface topography on the dynamics of the abrasive particles during micro-abrasion [J].
Costa, H. L. ;
Ardila, M. A. N. ;
Labiapari, W. S. ;
Silva, W. M. ;
de Mello, J. D. B. .
WEAR, 2015, 324 :129-139