scholarly journals INFLUENCE OF THE ALUMINA ADDITION IN THE WEAR RESISTANCE OF THE SINTERED AISI 52100 STEEL

2020 ◽  
pp. 207-211
Author(s):  
Bruna Horta Bastos Kuffner ◽  
Gilbert Silva ◽  
Carlos Alberto Rodrigues ◽  
Geovani Rodrigues
Keyword(s):  
Wear Resistance ◽  
Aisi 52100 ◽  
Aisi 52100 Steel ◽  
Alumina Addition

Microstructure and tribological properties of gray cast iron specimens coated by aluminizing, boronizing, chromizing and siliconizing

2012 ◽  
Vol 1516 ◽  
pp. 115-120 ◽  
Author(s):  
T. Murakami ◽  
K. Matsuzaki ◽  
Y. Gomi ◽  
S. Sasaki ◽  
H. Inui
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Tribological Properties ◽  
Gray Cast Iron ◽  
Steel Ball ◽  
Gray Cast ◽  
Iron Plate ◽  
Aisi 52100 ◽  
Alpha Olefin ◽  
Aisi 52100 Steel

ABSTRACTIn this study, aluminized, boronized, chromized and siliconized gray cast iron plate specimens were prepared, and their microstructures and tribological properties were investigated. The surfaces of the aluminized, boronized, chromized and siliconized specimens mainly consisted of FeAl, Fe2B, (Cr, Fe)23C6 and FeSi phases, respectively. Also, the surface of the boronized specimen exhibited the highest microvickers hardness of all the specimens. The aluminized, boronized and chromized specimens exhibited friction coefficients as low as the non-coated specimens when sliding against AISI 52100 steel ball specimens in poly-alpha-olefin. In addition, the boronized and chromized specimens exhibited much higher wear resistance than the non-coated specimens.

Microstructural Evolution and Wear Resistance of Friction Stir-Processed AISI 52100 Steel

2016 ◽  
Vol 47 (7) ◽  
pp. 3564-3572 ◽  
Author(s):  
R. A. Seraj ◽  
A. Abdollah-zadeh ◽  
M. Hajian ◽  
F. Kargar ◽  
R. Soltanalizadeh
Keyword(s):  
Wear Resistance ◽  
Microstructural Evolution ◽  
Friction Stir ◽  
Aisi 52100 ◽  
Aisi 52100 Steel

Comparison Friction and Wear Properties of Overbased Calcium Sulfonate Complex Grease and Polyurea Grease

2013 ◽  
Vol 734-737 ◽  
pp. 2484-2487
Author(s):  
Yong Jian Gao ◽  
Xiang Yu Ge ◽  
Zhen Zhong Wen ◽  
Yan Qiu Xia
Keyword(s):  
Wear Resistance ◽  
Friction And Wear ◽  
High Wear Resistance ◽  
Wear Properties ◽  
Calcium Sulfonate ◽  
Aisi 52100 ◽  
Aisi 52100 Steel ◽  
Friction And Wear Properties ◽  
Polyurea Grease ◽  
Worn Surfaces

The friction and wear properties of the overbased calcium sulfonate complex grease and polyurea grease were evaluated using an Optimol SRV reciprocating friction and wear tester under the boundary lubrication conditions. The morphologies of the worn surfaces of the AISI 52100 steel discs were observed using a scanning electron microscope (SEM). In addition, the elemental compositions and chemical states of several typical elements on the worn surfaces of the AISI 52100 steel discs were examined by means of X-ray photoelectron spectroscopy (XPS). The results show that the overbased calcium sulfonate complex greases and polyurea grease have stable friction coefficients as low as 0.10-0.11. The calcium sulfonate complex grease has better wear resistance properties than polyurea grease, polyurea grease has better reducing friction properties than calcium sulfonate complex grease, According to the XPS analyses, it is considered that the formation of tribochemical films led to lower friction coefficient and high wear resistance.

scholarly journals WEAR RESISTANCE OF Al–12 WT.% Si REINFORCED WITH NbC PARTICLES BY LASER CLADDING

2017 ◽  
Author(s):  
M. Lopes ◽  
A. Ramalho ◽  
R. Anandkumar ◽  
A. Almeida ◽  
R. Vilar ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Laser Cladding ◽  
Considerable Increase ◽  
Composite Coatings ◽  
Matrix Material ◽  
Matrix Alloy ◽  
Steel Sphere ◽  
Aisi 52100 ◽  
The Matrix ◽  
Aisi 52100 Steel

Al12Si–NbC composite coatings were deposited by laser cladding on a substrate of Al–7Si alloy. The microstructure and wear resistance of the coatings were evaluated in comparison to the properties of the substrate and the matrix alloy. The wear resistance was evaluated using ball-on-plate reciprocating sliding tests using an AISI 52100 steel sphere as counterbody. The coatings microstructure consists of NbC particles dispersed in a matrix of α–Al and α–Al/Si eutectic. The reinforcement with NbC particles induces a considerable increase in the average hardness of the matrix material from 85±1 HV to 147±40 HV and in the respective wear resistance. The wear mechanisms involve oxidation, adhesion with plastic deformation and delamination.

VASCO M-50

Alloy Digest ◽  
1974 ◽  
Vol 23 (11) ◽  
Keyword(s):  
Elevated Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
High Speed ◽  
High Speed Steel ◽  
High Strength ◽  
Heat Treating ◽  
High Load ◽  
Aisi 52100 ◽  
Aisi 52100 Steel

Abstract VASCO M-50 is a hardenable (martensitic), low-alloy high-speed steel developed primarily for high-strength, high-load components (such as bearings and gears) designed for elevated-temperature service. It may be used at temperatures up to 600 F; this is in contrast to AISI 52100 steel which may be used up to only 350 F. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: TS-278. Producer or source: Teledyne Vasco.

scholarly journals Study on the Influence of the Ball Material on Abrasive Particles’ Dynamics in Ball-Cratering Thin Coatings Wear Tests

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 668
Author(s):  
Gustavo Pinto ◽  
Andresa Baptista ◽  
Francisco Silva ◽  
Jacobo Porteiro ◽  
José Míguez ◽  
...  
Keyword(s):  
Aisi 304 ◽  
Thin Coatings ◽  
Iron And Steel ◽  
Test Configuration ◽  
Abrasive Particles ◽  
Aisi 52100 ◽  
Aisi 304 Steel ◽  
Aisi 52100 Steel ◽  
Steel Balls ◽  
Particles Dynamics

Micro-abrasion remains a test configuration hugely used, mainly for thin coatings. Several studies have been carried out investigating the parameters around this configuration. Recently, a new study was launched studying the behavior of different ball materials in abrasive particles’ dynamics in the contact area. This study intends to extend that study, investigating new ball materials never used so far in this test configuration. Thus, commercial balls of American Iron and Steel Institute (AISI) 52100 steel, Stainless Steel (SS) (AISI) 304 steel and Polytetrafluoroethylene (PTFE) were used under different test conditions and abrasive particles, using always the same coating for reference. Craters generated on the coated samples’ surface and tracks on the balls’ surface were carefully observed by Scanning Electron Microscopy (SEM) and 3D microscopy in order to understand the abrasive particles’ dynamics. As a softer material, more abrasive particles were entrapped on the PTFE ball’s surface, generating grooving wear on the samples. SS AISI 304 balls, being softer than the abrasive particles (diamond), also allowed particle entrapment, originating from grooving wear. AISI 52100 steel balls presented particle dynamics that are already known. Thus, this study extends the knowledge already existing, allowing to better select the ball material to be used in ball-cratering tests.

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