Effect of cyanide bath composition on depth and wear resistance of case

1968 ◽  
Vol 10 (10) ◽  
pp. 767-769 ◽  
Author(s):  
Ya. N. Funshtein ◽  
L. S. Lyakhovich
Keyword(s):  
Wear Resistance ◽  
Bath Composition ◽  
Cyanide Bath

Electroless deposition bicomponent dispersed phase composite coatings

2021 ◽  
pp. 86-89
Author(s):  
G.M. Mukhametova ◽  
A.A. Abrashov ◽  
E.G. Vinokurov ◽  
V.D. Skopintsev
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Succinic Acid ◽  
Electroless Deposition ◽  
Composite Coatings ◽  
Dispersed Phase ◽  
Bath Composition ◽  
Hard Particles ◽  
Coating Composition ◽  
Soft Particles

The deposition of bicomponent composite coatings containing both hard and soft particles is studied. Technologically important characteristics (deposition rate, coating composition) of electroless deposition of bicomponent Ni—Cu—P— Cr2O3—MoS2 composite coatings from slightly acidic baths are determined. Bath composition, mol/L: NiSO4 — 0,12; CuSO4 — 0,0016; NaH2PO2 — 0,37; NH2CH2COOH — 0,13; Succinic acid — 0,18; Pb (CH3COO)2 — 10–5; рН 6,5. A mixture of dispersed hard particles (Cr2O3) and soft particles (MoS2) was added to the solution for electroless deposition of a copper doped Ni—P alloy. It was found that when adding a mixture of dispersed Cr2O3 (40...25 % wt.) and MoS2 (60...75 % wt.) at a concentration of 10 g/L, the solution remains stable during deposition and allows the formation of Ni — Cu (1...1.5 wt.%) — P (4 wt.%) — Cr2O3(3 % wt.) — MoS2 (0.12— 0.16 % wt.) coatings at a rate of 15 mg/(cm2 •h). Deposited coatings after heat treatment at 400 °C has a microhardness of 11.1...11.2 GPA. It is concluded that the technology of electroless deposition of bicomponent composite coatings Ni—Cu—P—Cr2O3—MoS2 is promising for obtaining materials with increased hardness and wear resistance.

Application of TEM to Deformation, Wear, and Fracture of Ceramics

1974 ◽  
Vol 32 ◽  
pp. 472-473
Author(s):  
B. J. Hockey
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Brittle Materials ◽  
High Temperature Strength ◽  
Wide Range ◽  
Corrosive Environments ◽  
Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

Abrasive wear of polymer/steel gear drives

2008 ◽  
Vol 4 (1) ◽  
pp. 1-26
Author(s):  
Gábor Kalácska
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Material Selection ◽  
Solid Particles ◽  
Soil Types ◽  
General View ◽  
Modern Engineering ◽  
Clean Environment ◽  
Engineering Polymers ◽  
Plastic Gears

Research was performed on the friction, wear and efficiency of plastic gears made of modern engineering polymers and their composites both in a clean environment (adhesive sliding surfaces) and in an environment contaminated with solid particles and dust (abrasive), with no lubrication at all. The purpose is to give a general view about the results of abrasive wear tests including seven soil types as abrasive media. At the first stage of the research silicious sand was applied between the meshing gears and the wear of plastic and steel gears was evaluated and analyzed from the point of different material properties (elongation at break, hardness, yield stress, modulus of elasticity) and its combinations. The different correlations between the experienced wear and material features are also introduced. At the second stage of the project the abrasive sand was replaced with different physical soil types. The abrasive wear of gears is plotted in the function of soil types. The results highlight on the considerable role of physical soil types on abrasive wear resistance and the conclusions contain the detailed wear resistance. The results offer a new tribology database for the operation and maintenance of agricultural machines with the opportunity of a better material selection according to the dominant soil type. This can finally result longer lifetime and higher reliability of wearing plastic/steel parts.

Comparative high-temperature wear resistance of CHS88U-VI alloy and H30N50YU5T2 satellite

2014 ◽  
Vol 0 (4) ◽  
Author(s):  
Oleksandr M. Kostin ◽  
Anastasiia Yu. Butenko ◽  
Volodymyr O. Martynenko
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
High Temperature Wear

Tempering and wear resistance of laser cladded MMC coating for corrugated rollers

2007 ◽  
Author(s):  
Zhaoyong Qian ◽  
Minlin Zhong ◽  
Wenjin Liu ◽  
Dongye Zhang ◽  
Ruiquan Kang
Keyword(s):  
Wear Resistance

INCREASING THE WEAR RESISTANCE OF ELEMENTS AND COMPONENTS OF FORGING AND STAMPING EQUIPMENT (FOR EXAMPLE, PERFORMING SEPARATION OPERATIONS)

2020 ◽  
Author(s):  
K.O. Kobzev ◽  
◽  
S.A. Vyalov ◽  
E.S Bozhko ◽  
I.A. Zolotuhina ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Technological Capabilities ◽  
Recoil Force ◽  
The Press ◽  
Strength And Durability

The article describes the possibilities of increasing the durability of crank presses. The influence of the main parameters of the press on the value of the recoil force was studied. Based on the analysis of this topic, the types of expansion of technological capabilities of crank presses and their strength and durability were summarized.

Project to improve wear resistance of gas separators of electric submersible pumps at Rosneft Oil Company

2020 ◽  
pp. 62-65
Author(s):  
D.А. Minchenko ◽  
◽  
S.B. Yakimov ◽  
A.B. Noskov ◽  
D.A. Kosilov ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Improve Wear Resistance ◽  
Oil Company

Dependence of the lifelength of a hydraulic hammer pick on the wear resistance of its material

2020 ◽  
Vol 5 ◽  
pp. 68-79
Author(s):  
V.I. Bolobov ◽  
◽  
Thanh Binh Le ◽  
S.A. Chupin ◽  
V.A. Plashchinsky ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Hydraulic Hammer
Sign in / Sign up

Export Citation Format

Share Document