scholarly journals Evaluating Scuffing Failure in Dry Sliding Conditions of Monolayer Chromium Piston Ring/Bulk Grey Cast Iron Liner Interface

2020 ◽  
Vol 15 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Syed Danish Fayaz ◽  
Mohammad Farooq Wani
Keyword(s):  
Cast Iron ◽  
Piston Ring ◽  
Grey Cast Iron ◽  
Dry Sliding ◽  
Grey Cast ◽  
Scuffing Failure

scholarly journals Friction and Wear Characteristics of TIG Processed Surface Modified Grey Cast Iron

2009 ◽  
Vol 1 (3) ◽  
pp. 516-527 ◽  
Author(s):  
S. N. Pandya ◽  
S. K. Nath ◽  
G. P. Chaudhary
Keyword(s):  
Cast Iron ◽  
Sliding Wear ◽  
Gray Cast Iron ◽  
Welding Current ◽  
Grey Cast Iron ◽  
Gray Cast ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Modified Surfaces ◽  
Grey Cast

The surface of gray cast iron has been modified by Tungsten Inert Gas (TIG) process. Welding current of magnitude 25, 35, and 45 amperes have been used to melt the surface of gray cast iron. Microstructural characterization, hardness measurement and dry sliding wear tests have been performed on these modified surfaces. It has been observed that increase in welding current caused the microstructure of grey cast iron to be gradually refined. Graphite flakes segregated between interdendritic regions in the as-received grey cast iron have been completely replaced by a uniform distribution of finer graphite flakes in the matrix. Hardness has been found to increase with increase in welding current. Wear resistance of the gray cast iron also increased with increase in the welding current reaching maximum value for 45 amperes. The increased hardness and wear resistance of these modified surfaces have been explained on the basis of microstructural changes occurring at the surfaces of gray cast iron.  Keywords: Gray cast iron; Surface modification; TIG process; Dry sliding wear.© 2009 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.DOI: 10.3329/jsr.vli3.2577    J. Sci. Res. 1 (3), 516-527 (2009)

Wear behavior of pits textured grey cast iron rings with Zr/ZrN coatings under dry sliding

2020 ◽  
pp. 135065012094091
Author(s):  
Risheng Long ◽  
Shaoni Sun ◽  
Youwei Zhang
Keyword(s):  
Cast Iron ◽  
Physical Vapor Deposition ◽  
Wear Behavior ◽  
Normal Load ◽  
Surface Hardness ◽  
Wear Test ◽  
Surface Characteristics ◽  
Grey Cast Iron ◽  
Dry Sliding ◽  
Grey Cast

This study presents the influence of Zr/ZrN coatings on the tribological performance of pits textured grey cast iron parts under dry sliding. A laser marking system and a physical vapor deposition equipment were applied to manufacture pits textured grey cast iron rings combined with Zr/ZrN coatings. A pin-on-disc wear test rig was used to reveal the wear behavior of samples under dry wear condition, at a rotating speed of 200 r/min, with a normal load of 70 N. The wear losses and the worn surfaces of all rings were obtained by an electronic balance and a three-dimensional surface profilometer, respectively. The results show that Zr/ZrN coatings can significantly increase the surface roughness and surface hardness of grey cast iron rings. As a result, Zr/ZrN coatings increase the friction coefficients of all coated GCI rings, and reduce the wear losses of some ones. In this work, when surface texturing combines with Zr/ZrN coatings, the final tribological properties of coated grey cast iron rings may be either improved or deteriorated, depending on surface characteristics, texturing parameters and loads. Compared with the uncoated smooth grey cast iron ring, Zr/ZrN coatings cannot effectively improve the wear behavior of pits textured samples. Among all coated grey cast iron rings, when the diameter of the pit is 0.8 mm, and the distance between pits is 1.25 mm, the pits textured grey cast iron ring can provide the optimal anti-wear performance. This work would provide a valuable reference for the surface design of journal bearings and roller bearings.

Dry sliding wear of grey cast iron containing 0.2–1.0 wt.% P

Wear ◽  
1987 ◽  
Vol 117 (3) ◽  
pp. 375-379 ◽  
Author(s):  
W.J. Tomlinson ◽  
G.J. Vandrill
Keyword(s):  
Cast Iron ◽  
Sliding Wear ◽  
Grey Cast Iron ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Grey Cast

CHARACTERISTIC INTERNAL FRICTION SPECTRUM OF GREY CAST IRON

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-929-C5-934 ◽  
Author(s):  
P. Millet ◽  
R. Schaller ◽  
W. Benoit
Keyword(s):  
Cast Iron ◽  
Internal Friction ◽  
Grey Cast Iron ◽  
Grey Cast ◽  
Internal Friction Spectrum
Sign in / Sign up

Export Citation Format

Share Document