Dry Sliding Wear Mechanism of WC–13Ni Hard Alloy Irradiated by High-Intensity Pulsed Electron Beam

2017 ◽  
Vol 65 (4) ◽  
Author(s):  
F. G. Zhang
Keyword(s):  
Electron Beam ◽  
Hard Alloy ◽  
Wear Mechanism ◽  
High Intensity ◽  
Sliding Wear ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Pulsed Electron Beam

Dry Sliding Wear Behaviour of Fe-Based Powder Sintered Steel

2011 ◽  
Vol 415-417 ◽  
pp. 707-710
Author(s):  
Hua Chen ◽  
Hai Ying Sun
Keyword(s):  
Wear Resistance ◽  
Wear Mechanism ◽  
Sliding Wear ◽  
Hot Forging ◽  
Wear Behaviour ◽  
High Wear Resistance ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Delamination Wear ◽  
Sliding Wear Behaviour

Fe-based system powder metallurgy in the as-sintered was investigated on pin-on-rolling wear tester for their dry sliding wear behaviour. The morphology of worn surfaces and wear mechanism were analysed by SEM. Results show the hot-forging deformation quenching and tempered considerably decreased the porosity and improved wear resistance, and compare with quenching microstructure, tempered microstructure has high wear resistance and match of strength-toughness. Fe-2.0Ni-0.4Mo-0.5C-0.6Cr alloy presented best wear characteristics. SEM observations of the worn surface revealed microploughing and plastic deformation and crack were the basic dry sliding wear morphology,and oxidative wear and delamination wear are dominant wear mechanism.

Dry Sliding Wear Mechanism of Spark Plasma Sintered Si3N4/SiC Composites on Steel

2014 ◽  
Vol 56 (11-12) ◽  
pp. 969-972 ◽  
Author(s):  
Zeynep Taslicukur Ozturk
Keyword(s):  
Wear Mechanism ◽  
Sliding Wear ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Spark Plasma ◽  
Sic Composites

Study on Wear Mechanism and Contact Temperature against Dry Sliding Wear of Ni-Al2O3 Nanocomposite Coating

2020 ◽  
Vol 79 (3) ◽  
pp. 139-143
Author(s):  
Challakere Ramadas Raghavendra ◽  
Satyappa Basavarajappa ◽  
Irappa Sogalad ◽  
Kishan Naik
Keyword(s):  
Wear Mechanism ◽  
Sliding Wear ◽  
Nanocomposite Coating ◽  
Contact Temperature ◽  
Dry Sliding Wear ◽  
Dry Sliding

scholarly journals Dry Sliding Wear Behaviour of Rheocat Al-5.7si-2cu-0.3mg Alloy

2018 ◽  
Vol 7 (3.17) ◽  
pp. 38 ◽  
Author(s):  
M A. Abdelgnei ◽  
M Z. Omar ◽  
M J. Ghazali ◽  
Mohamed A. Gebril ◽  
M N. Mohammed
Keyword(s):  
Wear Mechanism ◽  
Sliding Wear ◽  
Cast Alloy ◽  
Contact Point ◽  
Optical Microscope ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Pin On Disc ◽  
Sliding Wear Behaviour

In this study, the effect of improved microstructure of Al-5.7Si-2Cu-0.3Mg alloys by using semisolid process on hardness and dry sliding wear behaviour were investigated. The microstructures of conventional cast alloy were totally dendritic, while in rheocasting the dendritic transfer to fine globular microstructures after using cooling slope casting. Tribological tests were carried out by using a pin-on-disc apparatus in dry sliding conditions. Wear tests were at low sliding speed 1ms-1 ,applied load at 50N and three different sliding distance (i.e., 1.8Km, 5.4Km and 9Km) respectively. An optical microscope and a scanning electron microscope were used to examine the microstructure and to understand the wear mechanism on the worn surface of both samples. The results showed that, the wear resistance of rheocast alloy was improved and higher than that those produce by conventional casting. The volume loss of rheocast alloy show reduction more than 18% at 1.8Km and 10% at 9Km compared to as-cast alloy. Moderate wear regimes were appeared in both alloys, according to the range of wear rate. The friction coefficient had increased due to increase in the contact point between pin and disc materials. The dominant wear mechanism for conventional and rheocasting alloys was adhesion wear and abrasive wear respectively.  

Sliding Wear and Metal Transfer Under Unlubricated Conditions

1959 ◽  
Vol 81 (1) ◽  
pp. 67-77 ◽  
Author(s):  
R. P. Steijn
Keyword(s):  
Wear Rate ◽  
Wear Mechanism ◽  
Surface Finish ◽  
Sliding Wear ◽  
Metal Transfer ◽  
Hardened Steel ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Finish Material ◽  
Back Transfer

To provide further information on dry sliding wear and the accompanying metal transfer, wear experiments of radioactive brass rings against hardened steel have been conducted in a ring tester. The effect on metal transfer of sliding speed, surface finish, material of the harder surface, and the presence of slots in the steel ring have been investigated. Tests have also been conducted in argon atmospheres to exclude oxidation. Wear of brass on brass has been investigated by using radioactive rings against inactive rings. Results indicate a complex wear mechanism in which transfer, back transfer, and removal of transferred material are intermediate steps, and in which the determining step in wear rate is governed by the geometry of the rings rather than the apparent area of contact.

Wear Behaviour of Al-1050 Alloy Processed by Severe Plastic Deformation

2010 ◽  
Vol 667-669 ◽  
pp. 1101-1106 ◽  
Author(s):  
Chuan Ting Wang ◽  
Nong Gao ◽  
Robert J.K. Wood ◽  
Terence G. Langdon
Keyword(s):  
Plastic Deformation ◽  
Wear Resistance ◽  
Wear Rate ◽  
Wear Mechanism ◽  
Sliding Wear ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Oxidation Wear ◽  
Wear Tests

An Al-1050 alloy was processed by ECAP and HPT, respectively. Dry sliding wear tests were conducted on the as-received and SPD-processed samples under various sliding conditions. A comparison of wear rate indicated that SPD processing decreased the wear resistance. Two main wear mechanisms were observed. The initial wear stage was dominated by severe platelet wear mechanism and later wear was dominated by an oxidation wear mechanism. The results show the severe wear stage of SPD-processed Al-1050 is much longer than that of the as-received Al-1050, which is attributed to the loss of work hardening capacity after SPD processing.

Dry Sliding Wear Behavior of Fe-Ni-Mo-C-Cr Powder Sintered Structural Steel

2012 ◽  
Vol 433-440 ◽  
pp. 572-577
Author(s):  
Hua Chen ◽  
Hai Ying Sun ◽  
Zhan Kui Zhao ◽  
Zhi Long Chai
Keyword(s):  
Wear Resistance ◽  
Wear Mechanism ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Hot Forging ◽  
High Wear Resistance ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Delamination Wear ◽  
Cr System

Fe-Ni-Mo-C-Cr system powder metallurgy in the as-sintered was investigated on pin-on-rolling wear tester for their dry sliding wear behavior. The morphology of worn surfaces and wear mechanism were analysed by SEM. Results show the hot-forging deformation quenching and tempered considerably decreased the porosity and improved wear resistance, and compare with quenching microstructure, tempered microstructure has high wear resistance and match of strength-toughness. Fe-2.0Ni-0.4Mo-0.5C-0.6Cr alloy presented best wear characteristics. SEM observations of the worn surface revealed microploughing and plastic deformation and crack were the basic dry sliding wear morphology,and oxidative wear and delamination wear are dominant wear mechanism.

Effect of electron beam surface melting on the microstructure and wear behavior of Stellite 12 hardfacing

2019 ◽  
Vol 71 (5) ◽  
pp. 636-641
Author(s):  
Ali Abdul Munim Alhattab ◽  
Shaikh Asad Ali Dilawary ◽  
Amir Motallebzadeh ◽  
Cevat Fahir Arisoy ◽  
Huseyin Cimenoglu
Keyword(s):  
Wear Resistance ◽  
Electron Beam ◽  
Sliding Wear ◽  
Surface Melting ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Content Type ◽  
The Matrix ◽  
Beam Surface ◽  
Stellite 12

PurposeThe purpose of this study is to investigate the effect of electron beam surface melting (EBSM) on the properties of Plasma Transfer Arc (PTA) deposited Stellite 12 hardfacing.Design/methodology/approachFor this purpose, structural characterization and dry sliding wear tests have been conducted on the hardfacings at room temperature. The wear tracks formed on the surfaces of the hardfacings were examined by a stylus-type profilometer and a scanning electron microscope.FindingsRefinement of the matrix and the carbides following EBSM process led to about 15 per cent increment in hardness as compared to PTA state. Despite an increase in the surface hardness, EBSM’ed hardfacing exhibited about 50 per cent lower sliding wear resistance than PTA hardfacing against alumina ball. According to the worn surface examinations, reduction in the wear resistance of Stellite 12 after EBSM process has been associated with the extensive refinement of the carbides which made them easier to be removed from the matrix during the sliding contact.Originality/valueThe authors of current study have applied EBSM to PTA deposited Stellite 12 hardfacing alloy to investigate if the surface structure and properties could be improved. More specifically the dry sliding wear performance of PTA and EBSM’ed hardfacings have been focused in the scope of this study. To the best of the authors’ knowledge, this approach, i.e. use of EBSM as a post deposition treatment of Stellite 12 hardfacings, has not been reported in open literature.

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