scholarly journals Influence of carbon diffusion on microstructure and wear behaviour of duplex stainless steel surface layers on lamellar grey cast iron

2019 ◽  
Vol 50 (10) ◽  
pp. 1165-1180 ◽  
Author(s):  
B. Heider ◽  
M. Oechsner ◽  
T. Engler ◽  
J. Ellermeier ◽  
U. Reisgen ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Cast Iron ◽  
Duplex Stainless Steel ◽  
Steel Surface ◽  
Carbon Diffusion ◽  
Grey Cast Iron ◽  
Wear Behaviour ◽  
Stainless Steel Surface ◽  
Surface Layers ◽  
Grey Cast

Sliding wear characteristics of grey cast iron as affected by the type and fraction of solid lubricants in oil

2014 ◽  
Vol 66 (5) ◽  
pp. 569-578
Author(s):  
B.K. Prasad
Keyword(s):  
Cast Iron ◽  
Wear Rate ◽  
Sliding Wear ◽  
Frictional Heating ◽  
Solid Lubricants ◽  
Grey Cast Iron ◽  
Wear Behaviour ◽  
Specific Response ◽  
Content Type ◽  
Grey Cast

Purpose – The purpose of the paper is to assess the influence of the volume fraction solid lubricants like talc lead and graphite in oil separately and in combination towards controlling the sliding wear behaviour of a grey cast iron and understand the factors controlling the response of the material in a given set of experimental conditions. Design/methodology/approach – The composition of the lubricating medium (oil) has been changed by dispersing 5 per cent graphite, talc and lead particles separately and in combination. Sliding wear tests were conducted on grey cast iron samples over a range of applied pressures. Parameters determined were wear rate and frictional heating. The wear behaviour of the samples was further substantiated through the features of wear surfaces, subsurface regions and debris particles. Material removal mechanisms and factors responsible for a specific response of the samples have also been analysed. Findings – The wear rate increased with increasing applied pressure. Addition of graphite and lead to the oil separately or in combination brought about a reduction in the wear rate of the samples; talc and talc + lead produced a reverse trend. Temperature near the specimen surface increased with test duration and applied pressure. The test environment influenced the frictional heating in a manner similar to that of the wear rate. Adhesion and abrasion were observed to be the operating material removal mechanisms. Smearing of the solid lubricating phase and delamination resulting from cracking tendency also controlled the wear response. Research limitations/implications – Oil is a very popular lubricant used in engineering applications involving friction and wear. Solid lubricants are used along with the oil. The nature, characteristics and content of the solid lubricants very much control the performance. Limited information is available pertaining to assessing the influence of the type and fraction of solid lubricants in the oil towards controlling the wear behaviour of cast irons (popularly known tribomaterials). The present study enables to understand the effectiveness of talc, lead and graphite in oil towards governing the wear characteristics of cast iron and analyse wear mechanisms and controlling parameters. Practical implications – Graphite and talc are available in nature in abundance. Graphite is a popularly known solid lubricant, while talc is less explored. Lead is also well-known as a solid lubricant but poses health hazard in practice due to its toxic nature. The present study explores the lubricating capability of talc when mixed with oil separately or in combination with lead and graphite towards controlling the wear response of a grey cast iron. It enables to understand the factors responsible for the specific response of talc. Social implications – Assessment of the lubricating potential of talc as a possible substitute to lead is important in view of the toxic nature of the latter. If successful, the exercise could enable to replace lead with talc. Originality/value – The present manuscript is an original piece of the author's research work.

scholarly journals Design and analysis of disc brake system in high speed vehicles

2021 ◽  
Vol 12 ◽  
pp. 19
Author(s):  
Anil Babu Seelam ◽  
Nabil Ahmed Zakir Hussain ◽  
Sachidananda Hassan Krishanmurthy
Keyword(s):  
Stainless Steel ◽  
Cast Iron ◽  
High Speed ◽  
Heat Dissipation ◽  
Optimal Choice ◽  
Grey Cast Iron ◽  
Brake Disc ◽  
Disc Brake ◽  
Brake Rotor ◽  
Grey Cast

Brakes are the most important component of any automobile. Brakes provide the ability to reduce or bring automobile to a complete stop. The process of braking is usually achieved by applying pressure to the brake discs. The main objective of this research paper is to propose an appropriate design and to perform analysis of a suitable brake rotor to enhance the performance of the high-speed car. The design of the brake disc is modelled using Solid works and the analysis is carried out using Ansys software. The analysis has been conducted by considering stainless steel and grey cast iron using same brake rotor design so that optimal choice of brake disc can be considered. The analysis considered involves static structural analysis and steady state thermal analysis considering specific parameters on brake rotor to increase the life of brake rotor. From the analysis it is found that the performance and life of disc brake depends upon heat dissipation. From the analysis results it can be concluded that grey cast iron has performed better as compared to stainless steel as this material has anti-fade properties which improves the life of the brake rotor.

AES of thin oxide layers on a duplex stainless steel surface

2010 ◽  
Vol 42 (6-7) ◽  
pp. 762-765 ◽  
Author(s):  
Djordje Mandrino ◽  
Črtomir Donik ◽  
Monika Jenko
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Steel Surface ◽  
Stainless Steel Surface ◽  
Oxide Layers ◽  
Thin Oxide

Mechanical and wear behaviour of alloyed hypereutectic grey cast iron

2010 ◽  
Vol 26 (7) ◽  
pp. 842-848 ◽  
Author(s):  
A. Vadiraj ◽  
G. Balachandran ◽  
M. Kamaraj ◽  
B. Gopalakrishna ◽  
D. V. Rao
Keyword(s):  
Cast Iron ◽  
Grey Cast Iron ◽  
Wear Behaviour ◽  
Grey Cast

Dry Sliding Wear Behaviour of Titanium and Boron Carbide Nano Coated Grey Cast Iron Cylinder Liner

2014 ◽  
Vol 592-594 ◽  
pp. 1291-1295 ◽  
Author(s):  
S. Ananth ◽  
T.V. Moorthy
Keyword(s):  
Surface Roughness ◽  
Cast Iron ◽  
Wear Test ◽  
Cylinder Liner ◽  
Grey Cast Iron ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Pin On Disc ◽  
Grey Cast ◽  
Engine Components

Among several nanocoatings, Ti and B4C hard coating shows excellent wear performance in cutting tool operation. This hard nanocoating Implemented on GCI substrate using EB-PVD coating is to make them suitable for engine components and to act as a protective coating against surface wear and reduce the wear of the components. The wear test was conducted using Pin-on-disc equipment at the room temperature and surface roughness was measured using surface roughness tester.The wear parameters such as sliding speed and sliding distance were kept constant and the load is varied. Coating hardness was measured using Brinell hardness tester.The investigation shows that Ti, B4C coatings have significant effect on GCI sleeve. Also, the result shows that the coating of Ti, B4C improved the wear resistance of the grey cast iron.

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