Effect of the material surface hardness on the erosion of AISI316

Mantha, D.; Agarwal, Vijay K.; Singh, Sadhna

doi:10.1016/j.wear.2005.02.004

Cited by 116 publications

(43 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Low stacking fault energy implies a wide separation of dislocations to cross-slipping. This difficulty interprets the relatively lower recovery rates, which results in lower erosion rates [41][42][43]. Figure 7 shows the variation of weight loss with ECAP passes as a function of slurry velocity.…”

Section: Effect Of Ecap On Erosion-corrosion At Different Flow Velocimentioning

confidence: 99%

“…At low velocities, the erodent is not completely suspended in the fluid; therefore, the erosion is unable to occur. It is recognized that erosion is a function of the fluid velocity (v) and it and be calculated by the nonlinear formula: Erosion = K·(v) n , where K is a constant depends upon particle size and impacting angle, and n is the velocity exponent [41,42]. Comparing the weight losses for pass zero (annealed copper) and four pass ECAP at different velocities it is observed that E-C resistances increased by 0%, 14%, 31.8%, and 13% at 1.4 m/s, 2.7 m/s, 3.8 m/s, and 5.4 m/s, respectively.…”

Section: Effect Of Ecap On Erosion-corrosion At Different Test Durationsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

et al. 2017

View full text Add to dashboard Cite

Abstract:During the past few decades, ultrafine-grained materials (UFG) have experienced rapid development. Enhanced mechanical and surface properties, such as strength, ductility and erosioncorrosion (E-C) resistance by refining the grain to ultra-fine/nanometer size has been achieved. The equal channel angular pressing (ECAP) is a popular severe plastic deformation (SPD) method to fabricate UFG bulk materials. In this research, the E-C behavior of commercial annealed pure copper subject to four passes of ECAP have been investigated. Hardness measurement of the copper specimen after four passes of ECAP showed an increase of 200% on the hardness value as compared with annealed condition. Simulated seawater was used as an E-C medium. The effect of different E-C parameters such as time, slurry flow velocity, impact angle, and solid particle concentration on ECAP process is studied. The results showed that ECAP enhances the E-C resistance of copper, and this behavior improves with increasing the pass number. Generally, a 30% rise in resistance to E-C was achieved after four ECAP passes as compared to coarse grain copper for the parameters studied in this work. Optical microscopy was used to examine the microstructure and material removal mechanism of the annealed copper. Scanning electron microscopy (SEM) was used to validate the reduction of grain size due to ECAP process. Furthermore, examination of the surface roughness of the copper at different ECAP passes showed that for the same E-C condition the increment of ECAP passes leads to a smoother surface.

show abstract

Section: Effect Of Ecap On Erosion-corrosion At Different Flow Velocimentioning

confidence: 99%

Section: Effect Of Ecap On Erosion-corrosion At Different Test Durationsmentioning

confidence: 99%

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

et al. 2017

View full text Add to dashboard Cite

show abstract

“…29,30 Increasing the hardness of the FeCO 3 film is important since it provides the required durability and the ability to resist environmental stresses such as erosive wear. 31 Having a higher ERP at medium OA-POSS loadings, the hybrid FeCO 3 is expected to be more rubbery and able to withstand various flow effects (Fig. 6b).…”

Section: General Corrosion Rate Evolutionmentioning

confidence: 99%

Siderite micro-modification for enhanced corrosion protection

et al. 2017

View full text Add to dashboard Cite

Production of oil and gas results in the creation of carbon dioxide (CO2) which when wet is extremely corrosive owing to the speciation of carbonic acid. Severe production losses and safety incidents occur when carbon steel (CS) is used as a pipeline material if corrosion is not properly managed. Currently corrosion inhibitor (CI) chemicals are used to ensure that the material degradation rates are properly controlled; this imposes operational constraints, costs of deployment and environmental issues. In specific conditions, a naturally growing corrosion product known as siderite or iron carbonate (FeCO3) precipitates onto the internal pipe wall providing protection from electrochemical degradation. Many parameters influence the thermodynamics of FeCO3 precipitation which is generally favoured at high values of temperatures, pressure and pH. In this paper, a new approach for corrosion management is presented; micro-modifying the corrosion product. This novel mitigation approach relies on enhancing the crystallisation of FeCO3 and improving its density, protectiveness and mechanical properties. The addition of a silicon-rich nanofiller is shown to augment the growth of FeCO3 at lower pH and temperature without affecting the bulk pH. The hybrid FeCO3 exhibits superior general and localised corrosion properties. The findings herein indicate that it is possible to locally alter the environment in the vicinity of the corroding steel in order to grow a dense and therefore protective FeCO3 film via the incorporation of hybrid organic-inorganic silsesquioxane moieties. The durability and mechanical integrity of the film is also significantly improved.

show abstract

“…The localized strength of austenitic phase increases with work hardening of matrix resulting in improvement in the erosion resistance. 36) The target material deforms plastically due to the repeated attack by hard abrasive alumina particles. The tensile toughness also plays important role in erosion resistance as the tough material absorbs kinetic energy of impinging particles.…”

Section: Figures 4(a)-4(e)mentioning

confidence: 99%

Cavitation Erosion and Solid Particle Erosion Behaviour of a Nitrogen Alloyed Austenitic Stainless Steel

et al. 2015

View full text Add to dashboard Cite

The effect of grain size on solid particle erosion and cavitation erosion of a nitrogen alloyed austenitic stainless steel has been investigated. Heat treatment of the steel at elevated temperatures results in an increase in grain size and thus modification in mechanical properties. Particle erosion tests were performed using an air jet erosion tester. An ultrasonic processor with a stationary specimen was used to investigate the cavitation erosion performance. The cavitation erosion rates were found to increase with the increase in grain size. The particle erosion rate shows no significant change with increase in grain size. The worn surfaces were examined to study the characteristic damage features using scanning electron microscope (SEM). The nitrogen alloyed austenitic stainless steel exhibited superior resistance to cavitation erosion and particle erosion than a 316L stainless steel. The hardness, yield strength and ultimate tensile strength of the steels are related with the erosion resistance.

show abstract

Effect of the material surface hardness on the erosion of AISI316

Cited by 116 publications

References 9 publications

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

Siderite micro-modification for enhanced corrosion protection

Cavitation Erosion and Solid Particle Erosion Behaviour of a Nitrogen Alloyed Austenitic Stainless Steel

Contact Info

Product

Resources

About