Role of Nanostructured Hardfacing Alloy on Steel for Enhanced Wear Behavior

Non-Asbestos organic composite friction materials are increasingly used in automotive brake disc pad applications. The present paper deals with the role of various organic fibers Kevlar, Acrylic fibers and the Rock fiber namely the Lapinus fiber on the fade and recovery behavior of friction composites. Three different friction composites were developed with same formulation varying only the percentage of Kevlar, Acrylic and lapinus fibers within the formulation. The formulations containing 13.5% of these fibers were developed as brake pads and designated as NA01, NA02 and NA03 respectively. The chemical and Mechanical properties are tested as per Indian Industrial standards.. The composites are then tested for the tribo-performance using Chase Testing Machine following SAE J661a standards. The fade µ, recovery µ and wear are significantly influenced by the amount and type of fiber combinations. Also the TGA reveals the degradation temperature of these fibers. Composite NA 03 containing Kevlar and lapinus combination is found to have good tribo performance. Worn surface analysis by SEM has proved to be useful in understanding the wear behavior of the composites.

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Monitoring of EDM parameters to develop tribo-adaptive Ti6Al4V surfaces through accretion of alloyed matrix

Industrial Lubrication and Tribology ◽

10.1108/ilt-07-2019-0257 ◽

2019 ◽

Vol 72 (3) ◽

pp. 291-297

Author(s):

Jibin T. Philip ◽

Deepak Kumar ◽

S.N. Joshi ◽

Jose Mathew ◽

Basil Kuriachen

Keyword(s):

Electrical Discharge Machining ◽

Tribological Behavior ◽

Wear Behavior ◽

Removal Rate ◽

Advanced Materials ◽

Surface Alloying ◽

Electrically Conductive ◽

Content Type ◽

Pulse On Time

Purpose Electrical discharge machining (EDM) is well-known for its credibility in the processing of advanced materials, which are electrically conductive. The strenuous effort associated with machining of Ti6Al4V (Ti64) using conventional methods, and its low tribological behavior, present an immediate need to develop solutions to monitor and improve the compatible techniques such as EDM. Design/methodology/approach The present work includes following: monitoring the ED process parameters, namely, current (I) and pulse on time (Ton), in controlling the material removal rate and surface roughness (Ra and Sa) for development of tribo-adaptive surfaces; and investigation on the role of oxides pertinent to the tribo-behavior of Ti64 (bare and EDMed) surfaces. Findings The tribological behavior of Ti6Al4V surfaces got remarkably improved through ED machining, which points to the credibility of the process to establish itself as a surface alloying technique. The recast layer (RL, alloyed matrix) acted as a protective coating; stable enough to assist the developed tribo-oxides such as TiO and Ti8O15 in rendering improved sliding performance at load = 50 N and speed = 0.838 ms−1. Originality/value The surface modification through ED machining was experimentally proven to improve the wear behavior of Ti6Al4V surfaces.

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The Role of the Counterbody’s Oxide on the Wear Behavior of HSS and Hi-Cr

Tribology Letters ◽

10.1007/s11249-017-0954-1 ◽

2017 ◽

Vol 66 (1) ◽

Cited By ~ 5

Author(s):

O. A. Zambrano ◽

K. F. Gallardo ◽

D. M. Polania ◽

S. A. Rodríguez ◽

J. J. Coronado

Keyword(s):

Wear Behavior

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Role of crystallinity on wear behavior of PTFE composites

Wear ◽

10.1016/j.wear.2013.08.019 ◽

2013 ◽

Vol 307 (1-2) ◽

pp. 81-86 ◽

Cited By ~ 37

Author(s):

Marcello Conte ◽

Bihotz Pinedo ◽

Amaya Igartua

Keyword(s):

Wear Behavior ◽

Ptfe Composites

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The role of stacking fault energy on galling and wear behavior

Wear ◽

10.1016/0043-1648(82)90151-x ◽

1982 ◽

Vol 75 (2) ◽

pp. 241-252 ◽

Cited By ~ 59

Author(s):

K.J. Bhansali ◽

A.E. Miller

Keyword(s):

Wear Behavior ◽

Stacking Fault ◽

Stacking Fault Energy

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Role of magnesium and minor zirconium on the wear behavior of 5xxx series aluminum alloys under different environments

Journal of Mechanical and Energy Engineering ◽

10.30464/jmee.2020.4.3.209 ◽

2020 ◽

Vol 4 (3) ◽

pp. 209-220

Author(s):

Mohammad Salim Kaiser ◽

Mohammad Abdul Matin ◽

Kazi Mohammad Shorowordi

Keyword(s):

Aluminum Alloys ◽

Fracture Surface ◽

Wear Behavior ◽

Corrosive Environment ◽

Ambient Conditions ◽

Saline Environment ◽

Β Phase ◽

Pin On Disk ◽

Film Lubrication

The tribological performance of 5xxx series aluminum alloys with ternary zirconium is evaluated at ambient conditions under dry, wet and saline environment. The experiment has been done using a Pin-on-Disk apparatus under an applied load of 20N. The sliding distances varies ranging from 116m-2772m at a sliding velocity of 0.385 ms-1. The results show that presence of Mg and Zr into this alloy helps to increase their strength and wear resistance under dry sliding condition. But they significantly suffer under wet and corrosive environment due to formation of β-phase Al3Mg2, to slip bands and grain boundaries which may lead to and stress-corrosion cracking. The variation of friction coefficient is observed in wet and corrosive environment due to the formation of oxidation film, lubrication, and corrosion action in solution. The SEM fracture surface shows that brittle Al3Mg2 phase initiate the brittle fracture surface for Al-Mg alloy and Zr addition accelerate the brittleness of the alloy owing the fine precipitates of Al3Zr.

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The role of heat treatment on wear behavior of powder metallurgy low alloy steels

Materials & Design (1980-2015) ◽

10.1016/s0261-3069(02)00046-8 ◽

2002 ◽

Vol 23 (7) ◽

pp. 667-670 ◽

Cited By ~ 41

Author(s):

H Khorsand ◽

S.M Habibi ◽

H Yoozbashizadea ◽

K Janghorban ◽

S.M.S Reihani ◽

...

Keyword(s):

Heat Treatment ◽

Powder Metallurgy ◽

Wear Behavior ◽

Low Alloy Steels ◽

Alloy Steels

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A Comprehensive Study about the Role of Crosslink Density on the Tribological Behavior of DLC Coated Rubber

Materials ◽

10.3390/ma13235460 ◽

2020 ◽

Vol 13 (23) ◽

pp. 5460

Author(s):

Suleyman Bayrak ◽

Dominik Paulkowski ◽

Klaus Werner Stöckelhuber ◽

Benjamin Staar ◽

Bernd Mayer

Keyword(s):

Crosslink Density ◽

Wear Behavior ◽

Substrate Material ◽

Butadiene Rubber ◽

Friction Behavior ◽

Functional Layer ◽

Wear And Friction ◽

Substrate Properties ◽

The Impact

The friction and wear behavior of coated rubber components is strongly dependent on the substrate properties. This work deals with the impact of the crosslink density, i.e., the hardness of the rubber substrate on the tribological performance of uncoated and coated rubber. The hardness of nitrile butadiene rubber (NBR) is varied altering the sulfur content. Both the uncoated and coated rubber samples are characterized in terms of surface and mechanical properties. Tribological tests comprise the examination of the macroscopic contact area and the temperature in the contact zone. It was found that the functional layer enhances the wear resistance significantly. Apparently, the wear and friction behavior of the coated rubber correlates with the hardness and the bulk properties of the substrate material.

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