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

scholarly journals Influence of Ni and Cr on the high-temperature wear resistance of FeNiCrAl coatings

2019 ◽  
Vol 12 ◽  
pp. 959-969 ◽  
Author(s):  
Haoliang Tian ◽  
Changliang Wang ◽  
Mengqiu Guo ◽  
Zhihui Tang ◽  
Shicheng Wei ◽  
...  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
High Temperature Wear

scholarly journals Improvement of High Temperature Wear Behavior of In-Situ Cr3C2-20 wt. % Ni Cermet by Adding Mo

Crystals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 682
Author(s):  
Liang Sun ◽  
Wenyan Zhai ◽  
Hui Dong ◽  
Yiran Wang ◽  
Lin He
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Wear Mechanism ◽  
Room Temperature ◽  
Wear Behavior ◽  
Ceramic Particle ◽  
High Temperature Wear ◽  
The Coefficient Of Friction ◽  
Mo Content

Cr3C2-Ni cermet is a kind of promising material especially for wear applications due to its excellent wear resistance. However, researches were mainly concentrated on the experiment condition of room temperature, besides high-temperature wear mechanism of the cermet would be utilized much potential applications and also lack of consideration. In present paper, the influence of Mo content on the high-temperature wear behavior of in-situ Cr3C2-20 wt. % Ni cermet was investigated systematically. The friction-wear experiment was carried out range from room temperature to 800 °C, while Al2O3 ceramic was set as the counterpart. According to experimental results, it is indicated that the coefficient of friction (COF) of friction pairs risen at the beginning of friction stage and then declined to constant, while the wear rate of Cr3C2-20 wt. % Ni cermet risen continuously along with temperature increased, which attributes to the converted wear mechanism generally from typical abrasive wear to severe oxidation and adhesive wear. Generally, the result of wear resistance was enhanced for 13.4% (at 400 °C) and 31.5% (at 800 °C) by adding 1 wt. % Mo. The in-situ newly formed (Cr, Mo)7C3 ceramic particle and the lubrication phase of MoO3 can effectively improve the wear resistance of Cr3C2-20 wt. % Ni cermet.

High temperature wear resistance of laser cladding NiCrBSi and NiCrBSi/WC-Ni composite coatings

Wear ◽  
2011 ◽  
Vol 270 (7-8) ◽  
pp. 492-498 ◽  
Author(s):  
Chun Guo ◽  
Jiansong Zhou ◽  
Jianmin Chen ◽  
Jierong Zhao ◽  
Youjun Yu ◽  
...  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Laser Cladding ◽  
Composite Coatings ◽  
High Temperature Wear

scholarly journals EFFICIENCY OF HARDENING OF METALLURGICAL EQUIPMENT SPARE PARTS BY HARD ALLOY

2019 ◽  
Vol 61 (12) ◽  
pp. 939-947
Author(s):  
V. А. Bystrov
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Service Life ◽  
Hard Alloy ◽  
Solid Particle ◽  
Thermal Stresses ◽  
Spare Parts ◽  
Solid Particles ◽  
High Temperature Wear ◽  
Hardening Process

Composite  materials  (CM)  are  widely  used  for  hardening  of  wearing parts operating at high temperature wear types. They are based  on  high-melting  hard  alloys,  as  which  are  used  carbides  of  transition  metals  of  IV – VI  groups A  determining  the  physics  of  high-temperature wear. For these purposes baked TiC of TN 20 type on the basis  of (Ti, Mo)C – Ni – Mo is used that has a ring structure preventing the  formation of complex alloyed structures on the bounda ry of solid particle-matrix. Due to the minimal solubility of the sintered hard alloy of  TN 20 type in the alloy-bond, at the interface of solid particle – matrix  practically does not stand out complex structural phases causing embrittlement and growth of residual thermal stresses and strains. It leads  to increased wear resistance and longer service life of hardened parts.  In order to increase the opera ting efficiency of metallurgical units due  to  hardening  of  spare  parts  with  a  composite  material  based  on  sintered hard alloy of the TN 20 type using electroslag surfacing (ESW),  a comprehensive program has been developed to control the efficiency  of hardening parts. In the management of hard alloy surfacing the special  attention  is  given  to  heat  and  high  temperature  wear  resistance  determined  by  the  set  of  CM  properties  of  solid  particles.  Therefore,  maintaining of high mechanical, thermal and energy characteristics of  carbides and decrease of the solubility of solid particles in a CM matrix  at surfacing is a priority for improving efficiency in hardening process  of spare parts. Integrated ESW management program for CM is based  on  effects,  aimed  to  prevent  the  formation  of  complex  alloyed  structures on surface of the solid section of particle-matrix; to reduce thermal stresses and deformations (leading to the cracks formation, chipping and deleting solid particles in abrasive wear) and to improve high  temperature wear resistance. Use of the developed control systems for  hardening  process  of  metallurgical  equipment  wearing  parts  has  significantly  increased  the  service  life  of  spare  parts  and  producti vity  of  the metallurgical units, which ensured a certain economic effect.

A comparative study on the high temperature dry sliding wear behavior of TiN and AlTiN/TiSiN coatings fabricated by PVD technique

2019 ◽  
Vol 71 (7) ◽  
pp. 861-868 ◽  
Author(s):  
Emre Altaş ◽  
Azmi Erdogan ◽  
Fatih Koçyiğit
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Physical Vapor Deposition ◽  
Wear Behavior ◽  
Experimental Studies ◽  
Hard Coatings ◽  
Dry Sliding Wear ◽  
Microstructural Investigation ◽  
Content Type ◽  
High Temperature Wear

Purpose This study aims to investigate the high-temperature wear behavior of the TiN- and AlTiN/TiSiN-coated WC materials. Design/methodology/approach The coating process was carried out using the physical vapor deposition (PVD) method. Wear tests were performed by a ball-on-disc wear device with a high-temperature wear module. In microstructural investigation of the materials, it was benefited from traditional characterization methods such as, SEM, EDX analysis and microhardness measurement. Findings The best wear performance was obtained with AlTiN/TiSiN-coated WC materials at all loads and temperatures, followed by TiN-coated and uncoated WC samples. An important wear was not observed on the samples tested at room temperature tests. It was found that the temperature increase is an effective parameter on the decrease of the wear resistance of the samples. In addition, it was seen that the increasing load and temperature change the wear mechanism on the uncoated WC sample. The wear mechanisms observed at high temperatures were delamination and oxidation for the WC, fatigue for AlTiN/TiSiN-coated WC and micro-scratch and micro-spalling for TiN-coated WC. Originality/value The results of the experimental studies demonstrated that hard coatings improving wear resistance of WC.

A Study in the High Temperature Tribological Characteristics of the Plasma Sprayed ZrO2 Coating

1998 ◽  
Author(s):  
Y.S. Song ◽  
J.-C. Han ◽  
M.-H. Park ◽  
B.-H. Ro ◽  
K.-H. Lee ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Thermal Stress ◽  
High Temperature ◽  
Bond Strength ◽  
Thermal Shock ◽  
Plasma Spray ◽  
Intermediate Layer ◽  
Stabilized Zirconia ◽  
High Temperature Wear ◽  
The Difference

Abstract The Thermal Barrier Coating (TBC) used to improve the heat barrier and wear resistant property in high temperature of the aircraft engine and the automobile engine, usually has a two layer structure. One is a ceramic top layer for heat insulation and the other is a metal bond layer to facilitate the bond strength between the top ceramic layer and the substrate. But, the coated layers can be peeled off because of the accumulation of the thermal stress by the difference of the thermal expantion coefficient between metal and ceramics in a heat cyclic environment. In this study, the intermediate layer produced by plasma spray process was introduced to reduce the thermal stress. The powders of plasma spray coating were Yttria Stabilized Zirconia (YSZ), Magnesia Stabilized Zirconia (MSZ) and NiCrAIY. The intermediate layer was sprayed with the powders of partially stabilized zirconia with 50wt% NiCrAIY between the ceramics top coat and the bond coat for the purpose of alleviating heat expansion. The high temperature wear and thermal shock test were conducted. The high temperature wear resistance of the YSZ TBC was better than that of the MSZ TBC. The wear resistance decreased with incresing temperature between 400°C to 600°C. The 3 layers TBC with YSZ top coating showed the best thermal shock resistance. This means that the intermediate layer played an importnat roll to alleviate the difference of the thermal expansion between metallic layer and ceramics layer. SEM and OM were examined. The bond strength, hardness test, and wear test were also studied

Nanoparticles Reinforcement for the Improved Strength and High-Temperature Wear Resistance of Mn-Cr Steel

2018 ◽  
Vol 49 (11) ◽  
pp. 5683-5694 ◽  
Author(s):  
A. Kračun ◽  
D. Jenko ◽  
M. Godec ◽  
S. V. Savilov ◽  
G. Prieto ◽  
...  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
High Temperature Wear
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