scholarly journals Crack Elimination and Surface Quality Enhancement of the Wear-resistant Layer on Guide Slippers of Coal Cutting Machines

2021 ◽  
Vol 2002 (1) ◽  
pp. 012017
Author(s):  
Jialu Chen ◽  
Yu Xue ◽  
Kun Liu ◽  
Fengge Jiang
Keyword(s):  
Surface Quality ◽  
Quality Enhancement ◽  
Wear Resistant ◽  
Coal Cutting ◽  
Resistant Layer

Arc deposition of wear resistant layer TiN on Ti6Al4V using simultaneous feeding of nitrogen and wire

2020 ◽  
Vol 381 ◽  
pp. 125141 ◽  
Author(s):  
Jiankang Huang ◽  
Shien Liu ◽  
Shurong Yu ◽  
Xiaoquan Yu ◽  
Huizi Chen ◽  
...  
Keyword(s):  
Wear Resistant ◽  
Resistant Layer ◽  
Arc Deposition

Wear properties of the deep gradient wear-resistant layer applied to 20CrMnTi gear steel

Wear ◽  
2019 ◽  
Vol 424-425 ◽  
pp. 216-222 ◽  
Author(s):  
Weidi Kong ◽  
Dekun Zhang ◽  
Qing Tao ◽  
Kai Chen ◽  
Jian Wang ◽  
...  
Keyword(s):  
Wear Properties ◽  
Wear Resistant ◽  
Gear Steel ◽  
Resistant Layer

scholarly journals QUALITY AND PRODUCTIVITY ENHANCEMENT AT THE MACHINING OF WEAR RESISTANT HARD COATS

2017 ◽  
Vol 45 (4) ◽  
pp. 23
Author(s):  
Peter Monka ◽  
Katarina Monkova ◽  
David Kološ ◽  
Marek Urban
Keyword(s):  
Surface Quality ◽  
High Temperatures ◽  
Operating Conditions ◽  
Core Material ◽  
Efficient Production ◽  
Wear Resistant ◽  
Final Surface ◽  
The Common ◽  
Main Factors ◽  
Cobalt Chrome

The article deals with the quality and productivity increasing at the machining of wear resistant hard coats. The goal of the authors was to understand the main factors that influence final surface quality at machining of the coatings from cobalt - chrome alloys. This type of alloy is generally selected to the operating conditions in which it is necessary to resist various forms of wear, high temperatures and corrosion. Efficient production of these components can be achieved by appropriate combination of economically preferred core material components of which the common characteristic is defined by toughness and coating optimized for specific operating conditions.

scholarly journals EFFICIENT CHOICE OF METHOD FOR PARTS REDUCTION BY METHOD OF MANUAL ARC WELD SURFACING OF WEAR-RESISTANT LAYER

2019 ◽  
Vol 2019 (2) ◽  
pp. 12-15
Author(s):  
Константин Макаренко ◽  
Konstantin Makarenko ◽  
Алексей Забелин ◽  
Aleksey Zabelin ◽  
Денис Савинов ◽  
...  
Keyword(s):  
Wear Resistant ◽  
Resistant Layer

scholarly journals Influence of the thickness of nanolayers in wear-resistant layer of Ti-TiN-(Ti,Cr,Al)N coating on the tool life and wear pattern of the carbide cutting tools in steel turning

Procedia CIRP ◽  
2021 ◽  
Vol 101 ◽  
pp. 262-265
Author(s):  
Alexey Vereschaka ◽  
Marina Volosova ◽  
Nikolay Sitnikov ◽  
Filipp Milovich ◽  
Nikolay Andreev ◽  
...  
Keyword(s):  
Tool Life ◽  
Cutting Tools ◽  
Wear Resistant ◽  
Wear Pattern ◽  
Steel Turning ◽  
Resistant Layer

scholarly journals Influence of the Thickness of Multilayer Composite Nano-Structured Coating Ti–TiN–(Ti,Al,Si)N on the Tool Life of Metal-Cutting Tools and the Nature of Wear

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 730 ◽  
Author(s):  
Alexey Vereschaka ◽  
Sergey Grigoriev ◽  
Nikolay Sitnikov ◽  
Anatoliy Aksenenko ◽  
Filipp Milovich ◽  
...  
Keyword(s):  
Tool Life ◽  
Metal Cutting ◽  
Cutting Tools ◽  
Multilayer Composite ◽  
Scratch Testing ◽  
Wear Resistant ◽  
And Performance ◽  
Resistant Layer ◽  
Carbide Inserts ◽  
Cutting Speeds

This article discusses the influence of the thickness of a nano-structured wear-resistant layer of the Ti–TiN–(Ti,Al,Si)N multilayer composite coating on its mechanical and performance properties. The study was focused on the coatings with the following thicknesses of its wear-resistant layers: 2, 3.5, 5, 7, 11, and 15 μm. The relation between the thickness of a wear-resistant layer and the time of its deposition was investigated, and the effect of the above thickness on hardness and wear resistance in scratch testing was considered. Cutting tests were conducted in turning steel C45 with carbide inserts with the coatings under study at various cutting speeds (vc = 250, 300 and 350 m/min). The study found the value of thickness of wear-resistant layer providing the longest tool life at various cutting speeds. The differences in the nature of wear for the coatings with various thicknesses of wear-resistant layers were considered.

scholarly journals Shaft Wear After Surfacing with Micro-Jet Cooling / Zużycie Ścierne Wałów Po Napawaniu Z Chłodzeniem Mikro-Strugowym

2015 ◽  
Vol 60 (4) ◽  
pp. 2625-2630
Author(s):  
T. Węgrzyn ◽  
J. Piwnik ◽  
Ł. Wszołek ◽  
W. Tarasiuk
Keyword(s):  
Surface Properties ◽  
Base Metal ◽  
Tribological Properties ◽  
Construction Equipment ◽  
Cooling Process ◽  
Wear Resistant ◽  
Important Method ◽  
Jet Cooling ◽  
Machine Elements ◽  
Resistant Layer

A paper presents a piece of information about innovate surfacing technology with micro-jet cooling. There are put down information about parameters of shaft surfacing with micro-jet cooling process. There were given information about influence of various micro-jet gases on metallographic structure of machine shaft after surfacing. There were analyzed tribological properties of welds. Welding surfacing process is very often used to apply a hardness or wear-resistant layer of base metal. It is very important method of extending the life of machines, tools, and construction equipment. Surfacing is also known as wearfacing, is often used to build up shafts, gears or cutting edges. Regenerated surface properties of various machine elements do not provide good tribological properties. The tribological interactions of a solid shaft surfaces were tested after welding with micro-jet cooling.

Effect of elastic and plastic deformations on tribological behavior of graphene-reinforced Ni3Al matrix composites

2017 ◽  
Vol 232 (10) ◽  
pp. 1261-1272 ◽  
Author(s):  
Yuchun Huang ◽  
Xiaoliang Shi ◽  
Kang Yang ◽  
Jialiang Zou ◽  
Qiao Shen ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Tribological Properties ◽  
Tribological Behavior ◽  
Tribological Performance ◽  
Plastic Deformations ◽  
Wear Resistant ◽  
Elastic And Plastic Deformations ◽  
Resistant Layer ◽  
Al Matrix ◽  
Self Lubricating Composites

The elastic and plastic deformations have significant effect on the tribological properties of the graphene-reinforced Ni3Al matrix self-lubricating composites. The primary purpose of this study is to investigate the tribological behavior and wear mechanisms of graphene-reinforced Ni3Al matrix self-lubricating composites by researching the effects of different loads and the corresponding friction heat on the elastic or plastic deformation. The dry sliding tribology tests of graphene-reinforced Ni3Al matrix self-lubricating composites are carried out at the loads of 7, 10, 13, and 16N, respectively. The elastic or plastic deformation is judged by comparing the yield stress with the contact stress analyzed by the numerical simulation method. It is found that graphene-reinforced Ni3Al matrix self-lubricating composites exhibit good tribological properties at 13 N due to the elastic deformation, leading to the formation of relatively stable wear resistant layer. Graphene-reinforced Ni3Al matrix self-lubricating composites show poor tribological performance at 16 N for the plastic deformation, resulting in the destruction of the wear resistant layer and the generation of surface cracks and material spalling. From the mechanical mechanism of wear, the plastic deformation and thermal stress are the important factors to lead to the material spalling. The results could be used to guide the selection of suitable working conditions for having good tribological performance of low wear and long service life.

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