High-Temperature Wear Properties of the Nitrided Alloys for Steam Turbine Valve System Parts

2005 ◽  
Vol 475-479 ◽  
pp. 4133-4136
Author(s):  
I.S. Kim ◽  
H.S. Kim ◽  
I.C. Hur ◽  
K.S. Son ◽  
Je Hyun Lee ◽  
...  
Keyword(s):  
High Temperature ◽  
Steam Turbine ◽  
Wear Debris ◽  
Nitrided Layer ◽  
Surface Hardness ◽  
Wear Properties ◽  
Wear Coefficient ◽  
Valve System ◽  
High Temperature Wear ◽  
Nitrided Specimen

ASTM A355, SUS422 and Nimonic 901 steel were nitrided and their wear characteristics such as the wear coefficient, amount of wear, shape and composition of wear debris were evaluated. Fe3N and Fe4N were observed in the nitrided layer of ASTM A355. Fe3N, Fe4N and CrN were appeared in the nitride of SUS422. However, only CrN phase was observed in the layer of Nimonic 901. The amount of wear and wear coefficient for the nitride specimen decreased remarkably compared with non-nitrided specimens. Also, the surface hardness and ductility increased and small debris was formed in the nitrided specimen.

High-Temperature Wear Properties of the Nitrided Alloys for Steam Turbine Valve System Parts

2005 ◽  
pp. 4133-4136
Author(s):  
I.S. Kim ◽  
H.S. Kim ◽  
I.C. Hur ◽  
K.S. Son ◽  
Je Hyun Lee ◽  
...  
Keyword(s):  
High Temperature ◽  
Steam Turbine ◽  
Wear Properties ◽  
Valve System ◽  
High Temperature Wear

Effect of High Temperature on Wear Behavior of Stir Cast Aluminium/Boron Carbide Composites

2020 ◽  
Vol 22 (4) ◽  
pp. 1031-1046
Author(s):  
X. Canute ◽  
M. C. Majumder
Keyword(s):  
High Temperature ◽  
Wear Rate ◽  
Boron Carbide ◽  
Wear Behavior ◽  
Base Alloy ◽  
Weight Fraction ◽  
Sliding Velocity ◽  
Wear Properties ◽  
High Temperature Wear ◽  
The Matrix

AbstractThe need for development of high temperature wear resistant composite materials with superior mechanical properties and tribological properties is increasing significantly. The high temperature wear properties of aluminium boron carbide composites was evaluated in this investigation. The effect of load, sliding velocity, temperature and reinforcement percentage on wear rate was determined by the pin heating method using pin heating arrangement. The size and structure of base alloy particles change considerably with an increase of boron carbide particles. The wettability and interface bonding between the matrix and reinforcement enhanced by the addition of potassium flurotitanate. ANOVA technique was used to study the effect of input parameters on wear rate. The investigation reveals that the load had higher significance than sliding velocity, temperature and weight fraction. The pin surface was studied with a high-resolution scanning electron microscope. Regression analysis revealed an extensive association between control parameters and response. The developed composites can be used in the production of automobile parts requiring high wear, frictional and thermal resistance.

Effects of loads on high-temperature wear properties of HVOF sprayed CoCrAlYTa-10%Al2O3 and Cr3C2-NiCr coatings

2019 ◽  
Vol 6 (10) ◽  
pp. 106541 ◽  
Author(s):  
Zheng Wei ◽  
Yuping Wu ◽  
Weihua Yang ◽  
Sheng Hong ◽  
Lei Qiao ◽  
...  
Keyword(s):  
High Temperature ◽  
Wear Properties ◽  
High Temperature Wear

High Temperature Wear Properties of Artificially Aged 6061Al-B 4 C p Metal Matrix Composite

2018 ◽  
Vol 5 (8) ◽  
pp. 16080-16084
Author(s):  
R. Akash ◽  
S. Amar ◽  
G.L. Rajesh ◽  
Vijaykumar Hiremath ◽  
V. Auradi
Keyword(s):  
High Temperature ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Wear Properties ◽  
High Temperature Wear

Mechanical and high temperature wear properties of extruded Al composite reinforced with Al 13 Fe 4 CMA nanoparticles

2016 ◽  
Vol 90 ◽  
pp. 532-544 ◽  
Author(s):  
Narguess Nemati ◽  
Masoud Emamy ◽  
Oleksiy V. Penkov ◽  
Jaekang Kim ◽  
Dae-Eun Kim
Keyword(s):  
High Temperature ◽  
Wear Properties ◽  
High Temperature Wear ◽  
Al Composite

High-temperature wear properties of gradient microstructure induced by ultrasonic impact treatment

2019 ◽  
Vol 246 ◽  
pp. 178-181 ◽  
Author(s):  
Xiangyang Mao ◽  
Jianyu Sun ◽  
Yuyang Feng ◽  
Xiaomeng Zhou ◽  
Xiuming Zhao
Keyword(s):  
High Temperature ◽  
Wear Properties ◽  
Ultrasonic Impact Treatment ◽  
High Temperature Wear ◽  
Gradient Microstructure

High Temperature Wear Behaviors of Electro-Brush Plating Ni-P Coatings

2010 ◽  
Vol 97-101 ◽  
pp. 1506-1509 ◽  
Author(s):  
Zhi Ming Li ◽  
Shi Qiang Qian ◽  
Wei Wang ◽  
Hong Wei Shen ◽  
He Sun Long
Keyword(s):  
High Temperature ◽  
Wear Test ◽  
Wear Properties ◽  
High Temperature Wear ◽  
Frictional Wear ◽  
Spalling Failure ◽  
Coating Time ◽  
Brush Plating ◽  
Disc Configuration ◽  
Ball On Disc

This paper have studied the high temperature frictional wear properties of Ni-P coatings on 20CrMo steel manufactured by electro-brush plating. A ball-on-disc configuration with no lubricants was employed and 4 mm diameter Si3N4 ball was used as static counterpart. The results showed that with the coating time increased from 0 to 24 minutes, the overall average friction coefficient and the mass worn loss of specimens were both declined in the wear test at 450 oC for 180 minutes. The wear became slighter as the coating time increased. When the coating time were 0, 6, 12 and 18 minutes, the main wear form of samples were deep microscopic plough cutting and spalling failure. As the coating time increased to 24 minutes, its main wear form were shallower microscopic plough cutting, almost no spalling failure.

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