Abrasive Wear Mechanisms of Multi Component Ferrous Alloys Abraded by Soft, Fine Abrasive Particles

2009 ◽  
pp. 388-389
Author(s):  
J.D.B. De Mello ◽  
A. A. Polycarpou
Keyword(s):  
Abrasive Wear ◽  
Wear Mechanisms ◽  
Ferrous Alloys ◽  
Abrasive Particles

Abrasive wear mechanisms of multi-components ferrous alloys abraded by soft, fine abrasive particles

Wear ◽  
2010 ◽  
Vol 269 (11-12) ◽  
pp. 911-920 ◽  
Author(s):  
José Daniel B. de Mello ◽  
Andreas A. Polycarpou
Keyword(s):  
Abrasive Wear ◽  
Wear Mechanisms ◽  
Ferrous Alloys ◽  
Abrasive Particles

scholarly journals Transitions of Wear Characteristics for Rubber/Steel Seal  Pairs During the Abrasive Wear Process

2021 ◽  
Author(s):  
Qin Zhou ◽  
Shuaishuai Li ◽  
Kai Zhang ◽  
Kun Qin ◽  
Minghao Lv ◽  
...  
Keyword(s):  
Abrasive Wear ◽  
Wear Mechanisms ◽  
304 Stainless Steel ◽  
Wear Loss ◽  
Particle State ◽  
Wear Performance ◽  
Abrasive Particles ◽  
Wear Process ◽  
Single Entry ◽  
Friction Performance

Abstract Abrasive wear resulting from the microclastic rock is a common failure phenomenon in the drilling environmentthat often limits the sealing ability and the service life of seals. In this study, the friction and wear process of fluoro rubber (FKM) seals against 304 stainless steel (SS304) after one single entry of SiO2 abrasives were investigated. The influence of the changes in particle state on friction coefficient evolution, wear loss evolution, wear morphologies and wear mechanisms were discussed in detail. The results indicate that the presence of abrasive particles dispersed between the sealing interface clearly improves the friction performance of the seal pairs and deteriorates the wear performance of the metal counterpart. The movement and breakage of particles after one single entering into the sealing interface were obtained. And on this basis, the stable wear process can be divided into three stages. In addition, the main causes contributed to this change of wear mechanisms are the random movement and process of continuous breakdown of abrasive particles. Furthermore, the transition of the wear mechanism that clearly describes the wearing behavior of the seal pairs under these abrasive wear conditions was identified. The results of this study enhanced our understanding of the abrasive wear degradation of rubber seal in practical drilling applications.

Characterization of Impact Abrasive Wear Produced by Different Rocks

2014 ◽  
Vol 604 ◽  
pp. 47-50 ◽  
Author(s):  
Marcela Petrica ◽  
Thomas Peinsitt ◽  
Ewald Badisch
Keyword(s):  
Abrasive Wear ◽  
Wear Mechanisms ◽  
Core Components

In industry, core components such as crushers, miner feeder devices and impact stone breakers are exposed to heavy wear which involves mechanisms such abrasive wear and / or impact abrasion. The purpose of this work is to identify complex wear mechanisms that occur in such conditions and to correlate them with the properties of typical abrasives found in mining environments.

Abrasive wear mechanisms of fluoropolymer based composite coatings on aluminium substrates

Wear ◽  
1996 ◽  
Vol 200 (1-2) ◽  
pp. 122-136 ◽  
Author(s):  
M.Q. Zhang ◽  
K. Friedrich ◽  
K. Batzar ◽  
P. Thomas
Keyword(s):  
Abrasive Wear ◽  
Wear Mechanisms ◽  
Composite Coatings

Corrosive-wear behavior of LSP/MAO treated magnesium alloys in physiological environment with three pH values

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Yongshui Shen ◽  
Tongjin Sun ◽  
Tao Zhu ◽  
Ying Xiong
Keyword(s):  
Abrasive Wear ◽  
Wear Mechanisms ◽  
Adhesive Wear ◽  
Laser Shock ◽  
Corrosion Wear ◽  
Fatigue Wear ◽  
Wear Rates ◽  
Ph Values ◽  
Wear And Corrosion ◽  
Micro Arc Oxidation

Abstract A laser shock peening (LSP) layer, a micro-arc oxidation (MAO) coating, and an LSP/MAO composite coating were fabricated on the surface of AZ80 magnesium alloy by laser shock and micro-arc oxidation process. The ball-disc grinding method was used to perform wear test on the three treated specimens in simulated body fluids (SBF) with pH values of 4, 7.4 and 9. The morphology and element content of worn surface were investigated by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). The results indicated that the wear rates of the three treated specimens in three pH environment in numerical order were pH 4 > pH 7.4 > pH 9, respectively. The wear rates of the three treated specimens in the same pH environment were arranged in the order of MAO > LSP > LSP/MAO, respectively. The main wear mechanisms of the LSP specimen in pH 4 environment were fatigue wear and corrosion wear, while it were corrosion wear and adhesive wear in pH 7.4 and pH 9 environments. Abrasive wear, fatigue wear and corrosion wear were the main wear mechanisms of the MAO specimen in pH 4 environment, while abrasive wear, adhesive wear and corrosion wear were the main wear mechanisms of that in pH 7.4 and pH 9 environments. The corrosion wear resistance of the LSP/MAO specimen in SBF solution with three pH values was improved due to the synergism of LSP fine crystal layer and MAO coating.

Effect of Nano Sodium Titanate/ Potassium Titanate Whisker on Tribology Behavior of Brake Materials

2020 ◽  
Vol 993 ◽  
pp. 836-843
Author(s):  
Ke Guo ◽  
Zhi Qiang Zhang ◽  
Zhong Zheng Pei ◽  
Jie Xu ◽  
Yi Fan Feng
Keyword(s):  
Wear Resistance ◽  
Friction Coefficient ◽  
Abrasive Wear ◽  
Wear Mechanisms ◽  
Adhesive Wear ◽  
Sodium Titanate ◽  
Brake Pad ◽  
Potassium Titanate

Here we developed a hot-pressed molded resin-based brake pad material reinforced by a nano sodium titanate whisker in comparison with nano potassium titanate whisker. The effect of the whiskers on the tribology behavior was investigated. Though nano sodium titanate whisker reinforced brake material showed higher porosity (+12.29% averagely) and lower hardness (-25.8% averagely) caused by the impurities, it exhibited improved ability in stabilizing the friction coefficient and enhancing 25.5%, 31.1%, 25.9% higher wear resistance, when the volume contents of whisker are 7.5%, 15% and 22.5%, respectively, compared to the nano potassium titanate whisker reinforced brake material. The wear mechanisms of the nano sodium titanate whisker reinforced brake materials were determined as embedded debris, delaminated crater, moderate layers transfer, uniform furrows, primary plateaus and secondary plateaus in similar size, indicating a main wear form of abrasive wear instead of adhesive wear.

scholarly journals Abrasive wear resistance of selected woods

2017 ◽  
Vol 63 (No. 2) ◽  
pp. 91-97
Author(s):  
Brožek Milan
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Sweet Cherry ◽  
Sour Cherry ◽  
Wear Intensity ◽  
Horse Chestnut ◽  
Silver Fir ◽  
Abrasive Particles ◽  
Volume Weight ◽  
Pin On Disk

In this contribution, the results of the wear resistance study of 10 sorts of wood (apple, aspen, beech, hornbeam, horse-chestnut, London plane, mahogany, silver fir, sour cherry and sweet cherry) are published. The laboratory tests were carried out using the pin-on-disk machine when the abrasive clothes of three different grits (240, 120 and 60) were used. The wear intensity was assessed by the volume, weight and length losses of the tested samples. From the results of the carried out tests it follows that the wear resistance of different woods is different. It was proved that the wear resistance of different woods depends on the abrasive particles size, too. Also the technical-economical evaluation was part of the carried out tests. It was univocally proved that at the intensive abrasive wear using the abrasive cloth the best results were shown by hard woods, e.g. apple, beech or mahogany. Soft woods, e.g. horse-chestnut, silver fir or sweet cherry, are cheap, but their wear is bigger compared to hard woods.

Variations of a Ni-P Surface Layer After Nanoparticle Impacts

2005 ◽  
Author(s):  
J. Xu ◽  
J. B. Luo ◽  
G. S. Pan ◽  
W. Zhang ◽  
X. C. Lu
Keyword(s):  
Surface Layer ◽  
Microscopic Examination ◽  
Wear Mechanisms ◽  
Erosive Wear ◽  
Experimental Results ◽  
Phosphorus Concentration ◽  
Fluid Medium ◽  
Abrasive Particles ◽  
Nano Scale ◽  
Surface Collision

In CMP, erosive wear regarded as one of the wear mechanisms underlying the interaction between the abrasive particles and polished surfaces can occur when materials are removed from surface collision of particles which are carried by a fluid medium. In this paper, the microscopic examination of the NiP coatings after nanoparticle impacts is performed. The experimental results indicate that craters and scratches can be observed in the surface after nanoparticle impacts, and crystal grains in nano-scale and element phosphorus concentration can be found in the sub-surface layer of the impacted surface.

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