The role of surface chemistry and fatigue on tribocorrosion of austenitic stainless steel

Zavieh, Amin Hossein; Espallargаs, N.

doi:10.1016/j.triboint.2016.07.020

Cited by 18 publications

(6 citation statements)

References 31 publications

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“…Residual stresses are also known to increase the susceptibility of environmentally assisted cracking with respect to crack initiation and propagation, as shown for weldments [21]. Thus, the cathodic shift during corrosion fatigue loading of brazed joints is expected to be influenced by the fatigue crack initiation and propagation as well as by the passivation kinetics, passive film thickness [33] and local galvanic corrosion effects [21,22]. The fracture position and fracture behaviour as well as the deformation-induced formation of martensite may also affect the corrosion fatigue behaviour.…”

Section: Resultsmentioning

confidence: 99%

Fatigue and Corrosion Fatigue Behaviour of Brazed Stainless Steel Joints AISI 304L/BAu-4 in Synthetic Exhaust Gas Condensate

et al. 2019

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As brazed stainless steel components in service often have to withstand cyclic loads in corrosive environments, the corrosion fatigue properties of brazed joints have to be characterised. Application-relevant corrosion fatigue tests in corrosive media are extremely rare for brazed joints and cyclic deformation curves are barely investigated. In this study, fatigue tests of brazed AISI 304L/BAu-4 joints were performed in air and synthetic exhaust gas condensate K2.2 according to VDA 230-214. The fatigue behaviour of the brazed joints was compared to properties of the austenitic base material. Strain, electrical, magnetic, temperature and electrochemical measurement techniques were applied within fatigue and corrosion fatigue tests to characterise the cyclic deformation and damage behaviour of the brazed joints. It was found that the fatigue strength of 397 MPa at 2 × 106 cycles was reduced down to 51% due to the superimposed corrosive loading. Divergent microstructure-related damage mechanisms were identified for corrosion fatigue loadings and fatigue loadings of specimens in the as-received and pre-corroded conditions. The investigations demonstrate the important role of corrosive environments for the mechanical performance of brazed stainless steel joints.

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Section: Resultsmentioning

confidence: 99%

Fatigue and Corrosion Fatigue Behaviour of Brazed Stainless Steel Joints AISI 304L/BAu-4 in Synthetic Exhaust Gas Condensate

et al. 2019

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“…7a, b. Zavieh et al [19,20] studied the tribocorrosion behavior of austenitic stainless steel in a NaCl solution and also found holes on the subsurface of wear scars. They believed that a thicker passive film could impede the plastic flow of subsurface materials, and more materials superimposed each other to form a dislocation matrix, which eventually resulted in discontinuities of materials as well as voids and pits.…”

Section: Discussionmentioning

confidence: 99%

Tribocorrosion Behavior of 304 Stainless Steel in 0.5 mol/L Sulfuric Acid

Liu

Duan

Jiang

et al. 2018

Acta Metall. Sin. (Engl. Lett.)

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The tribocorrosion behavior of 304 stainless steel was studied through comparing the damage behavior of 304 stainless steel in dilute sulfuric acid to that in distilled water by a reciprocating tribotester. The re-passivation behavior, the surface and sectional morphological features, as well as the change of microhardness of samples were studied, and the tribocorrosion mechanism was also discussed. The experimental results reveal that the damage of stainless steel in dilute sulfuric acid was caused by the steel's mechanical removal and electrochemical dissolution. The wear mechanism of stainless steel is abrasive wear, which mainly consists of micro-cutting and peeling. The synergetic action between corrosion and wear is notable. The corrosive environment leads to the embrittlement of the surface layer, and the wear destroys the passivation film and causes galvanic corrosion.

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“…The subsurface deformation area was also observed in other alloys. Zavieh et al [40] observed that a subsurface alteration occurred on austenitic stainless steel in NaCl at different electrochemical potentials. This was attributed to the shear strain accumulation at the contact, which led to a fine microstructure regardless of the electrochemical condition [40].…”

Section: Subsurface Characterizationmentioning

confidence: 99%

“…Zavieh et al [40] observed that a subsurface alteration occurred on austenitic stainless steel in NaCl at different electrochemical potentials. This was attributed to the shear strain accumulation at the contact, which led to a fine microstructure regardless of the electrochemical condition [40]. This observation has been reported in other studies [41], but differs from the observations found in this presented study.…”

Section: Subsurface Characterizationmentioning

confidence: 99%

Effect of Potential and Microstructure on the Tribocorrosion Behaviour of Beta and Near Beta Ti Alloys II

Neto

Rainforth

2021

J Bio Tribo Corros

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Titanium alloys, especially Ti6Al4V, are commonly applied in orthopaedic implants as a result of their relatively low density, good corrosion properties, satisfactory biocompatibility and bone ingrowth promoting properties. However, Ti implants are susceptible to mechanical failure. Although corrosion and wear related problems have been recognized as a major issue impeding their long-term application, there is still a lack of knowledge about the basic mechanisms. Previously, the tribocorrosion properties of 4 distinct titanium alloys (Ti13Nb13Zr, Ti12Mo6Zr2Fe, Ti29Nb13Ta4.6Zr aged at 300 °C and at 400 °C) was analysed in the published Part I of this study in regard to wear rates, electrochemical behaviour, and the tribocorrosion synergism estimations. This work, Part II, contributes to the previous study and investigates the tested surfaces of these 4 Titanium alloys from the same tribosystem aiming to characterize the wear track surfaces and identify the main wear mechanism, to characterize the tribofilm and to investigate the subsurface alterations occurring under varying contact pressures and electrochemical potentials. The results indicated a dominant abrasion wear mechanism regardless of microstructure, electrochemical potential and normal load (contact pressure). Additionally, grain refinement observed on the subsurface varied with alloy and electrochemical potential, with the variation being mostly independent of alloy microstructure. Finally, a graphitic tribofilm was detected in most conditions, which while inconsequential in regard to wear, may explain the previously observed reduction of friction. Graphic Abstract

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The role of surface chemistry and fatigue on tribocorrosion of austenitic stainless steel

Cited by 18 publications

References 31 publications

Fatigue and Corrosion Fatigue Behaviour of Brazed Stainless Steel Joints AISI 304L/BAu-4 in Synthetic Exhaust Gas Condensate

Fatigue and Corrosion Fatigue Behaviour of Brazed Stainless Steel Joints AISI 304L/BAu-4 in Synthetic Exhaust Gas Condensate

Tribocorrosion Behavior of 304 Stainless Steel in 0.5 mol/L Sulfuric Acid

Effect of Potential and Microstructure on the Tribocorrosion Behaviour of Beta and Near Beta Ti Alloys II

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