Tribocorrosion behaviour of 304 stainless steel in different corrosive solutions

Abstract

Tribocorrosion is often complicated and harmful to metallic components, which depends on the mechanics of the tribological contact, on the electrochemical characters, on the properties of the contacting materials, and on the physico‐chemical properties of the environment. In this work, effects of corrosive media on the friction and wear behaviour, on the corrosion behaviour and on the synergistic effect between them were investigated in detail on a pin‐on‐disc tribometer. Although no electrochemical corrosion occurs in distilled water, its lubricity is so bad that plastic ratchetting effect and abrasive wear are observed on 304SS surface which result in severe material loss. In other three simulated seawater, corrosion and wear interact positively, making the pure mechanical wear and corrosion accelerated wear including abrasion and delamination, be the main reasons for 304SS degradation. Note that solution pH also plays an important role in determining material degradation.

Evaluation of pitting susceptibility and tribocorrosion behaviors of AISI 304 stainless steel in marine environments

“…[13][14][15] The pitting susceptibility of AISI 304 stainless steel has been a controversial and much-disputed subject within corrosion science in the last decade. 16,17 In the literature, the relative importance of electrochemical potential has been subject to considerable debate on the pitting initiation of AISI 304 stainless steel. 13,16,[18][19][20][21][22] In parallel with the increasing amount of load at the same frequency, the deterioration of the passive film by mechanical effects can cause a decrease in the potential.…”

Evolution of Calcareous Deposits and Passive Film on 304 Stainless Steel with Cathodic Polarization in Sea Water

“…There are many technologies to protect 304 SS from corrosion in sea water, among which cathodic protection is one of the most effective methods [1,4]. The potential is an important factor to consider for cathodic protection.…”

“…The stainless steel cannot achieve effective protection without enough cathodic polarization [1], while it will suffer over-protection when the potential is too negative, even leading to hydrogen embrittlement especially for some high strength materials [6][7][8][9]. Although some guidelines on proper potential of cathodic protection can be found in the literature [4,8,[10][11][12], an optimized potential of protection for 304 SS in seawater still needs to be determined with a balanced consideration of cost and effectiveness [1,3,6].…”

Effect of sodium octanoate on the tribocorrosion behaviour of 5052 aluminium alloy

“…tribocorrosion process [5,6]. During the tribocorrosion process, accelerated wear was always observed for various metal materials by combining mechanical, chemical and electrochemical factors [7][8][9][10][11][12][13][14][15]. Some inorganic and organic inhibitors, such as rareearth compounds [16,17], 1,4-naphthoquinone [18], sodium decanoate [19] are added as the corrosioninhibitors to reduce the corrosion of aluminium.…”