Wear Properties of Stainless Steel Lubricated by Cerbera and Rubber Seeds Methyl Esters under Boundary Lubrication Condition

2021 ◽  
Vol 892 ◽  
pp. 1-9
Author(s):  
Zahrul Fuadi ◽  
Rudi Kurniawan ◽  
Muhammad Dirhamsyah ◽  
Samsul Bahri ◽  
Mahadir Muhammad ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Tribological Properties ◽  
Diesel Fuel ◽  
Methyl Esters ◽  
Biodiesel Fuel ◽  
Wear Properties ◽  
Food Stock ◽  
Steel Material ◽  
Stainless Steel Material ◽  
Lubrication Condition

The use of biodiesel fuel converted from vegetable-based oil are continuously increasing due sustainability and environment concerns. It is important to increase the portion of converted fuel from non-edible sources to reduce the use of food stock. In this study, the tribological properties of stainless-steel material was investigated when lubricated by two kinds of methyl esters converted from non-edible vegetable oils, i.e. Cerbera oil and Rubber seeds oil. The friction and wear were investigated by using a ball-on-disk tribometer at severe friction condition. The results show that the wear of material lubricated by both methyl esters was much smaller than that lubricated by petrol diesel fuel. At temperature of 27°C, the worn area on the ball specimens for the case of Cerbera and Rubber seeds methyl esters were 0.396 mm2 and 0.391 mm2 compared to 3.642 mm2 for the case of petroleum diesel fuel. At 80°C, they were 0.410 mm2 and 0.429 mm2 compared to 4.152 mm2 for the case of petroleum diesel fuel. This shows that both Cerbera and Rubber seeds methyl esters has a good tribological properties comparable to other methyl esters sources used for mineral diesel fuel substitute.

Tribological properties of plasma nitrided stainless steel against SAE52100 steel under ionic liquid lubrication condition

2006 ◽  
Vol 39 (7) ◽  
pp. 635-640 ◽  
Author(s):  
Yanqiu Xia ◽  
Shijie Wang ◽  
Feng Zhou ◽  
Haizhong Wang ◽  
Yimin Lin ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Ionic Liquid ◽  
Tribological Properties ◽  
Lubrication Condition

Application of the First Higher-Order (M21) Mode Rayleigh Wave to the Inspection of Stainless Steel Overlays

1990 ◽  
Vol 112 (3) ◽  
pp. 298-301 ◽  
Author(s):  
D. E. Bray
Keyword(s):  
Stainless Steel ◽  
Point Contact ◽  
Base Material ◽  
Higher Order ◽  
Inspection Method ◽  
High Frequencies ◽  
Steel Material ◽  
Welding Defects ◽  
Stainless Steel Material ◽  
Probe Placement

Efficient inspection of stainless steel overlays appears to present a particularly challenging problem due to the anisotropy that is characteristic of that material. An improved inspection technique may be available, however, when the dissimilar properties of the overlay and the base material are utilized. Higher order mode Rayleigh waves which at high frequencies remain confined to the upper layer of the stainless steel material are demonstrated to be able to detect welding defects in the overlay material in a field some distance away from the probe. With this technique, a larger area may be scanned with each probe placement rather than the point contact probe inspection method that is typically used.

The Effect of Biodiesel Composition on Characteristics of Blended Summer Diesel Fuel

2020 ◽  
Vol 850 ◽  
pp. 133-137
Author(s):  
Valdis Kampars ◽  
Ruta Kampare ◽  
Anastasija Naumova
Keyword(s):  
Fatty Acid ◽  
Diesel Fuel ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
Biodiesel Fuel ◽  
Engine Fuel ◽  
Flow Properties ◽  
Cold Flow ◽  
Acid Methyl ◽  
Good Potential

The blends of varying proportions of biodiesel fuel containing fatty acid methyl esters and triacetin (FAME*), synthesised accordingly to Latvian patent LV 15 373 and summer diesel were prepared, analysed and compared with diesel fuel. The selected fuel properties (viscosity, density, carbon residue and cold flow properties) tested accordingly to standard LVS-EN 14214 have indicated a good potential of FAME*, obtained by synthesis of fatty acid methyl esters (FAME) by simultaneous conversion of glycerol to triacetin as a renewable diesel engine fuel. The results showed that blends containing 5 to 25% of FAME* in summer diesel yielded the properties closely matching that of diesel.Introduction

scholarly journals ANALYSIS OF THE ECOLOGICAL PARAMETERS OF THE DIESEL ENGINE POWERED WITH BIODIESEL FUEL CONTAINING METHYL ESTERS FROM CAMELINA SATIVA OIL

Transport ◽  
2010 ◽  
Vol 25 (1) ◽  
pp. 22-28 ◽  
Author(s):  
Sergejus Lebedevas ◽  
Galina Lebedeva ◽  
Violeta Makarevičienė ◽  
Irina Kazanceva ◽  
Kiril Kazancev
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Methyl Esters ◽  
Chemical Properties ◽  
Acid Methyl Ester ◽  
Fuel Mixture ◽  
Camelina Sativa ◽  
Biodiesel Fuel ◽  
Load Range ◽  
Acid Methyl

The article explores the possibilities of using fatty acid methyl esters derived from the oil of a new species of oily plant Camelina sativa not demanding on soil. The performed research on the physical and chemical properties of pure methyl esters from Camelina sativa show that biofuels do not meet requirements for the biodiesel fuel standard (LST EN 14214:2009) of a high iodine value and high content of linoleic acid methyl ester, so they must be mixed with methyl esters produced from pork lard the content of which in the mixture must be not less than 32%. This article presents the results of tests on combustion emission obtained when three‐cylinder diesel engine VALMET 320 DMG was fuelled with a mixture containing 30% of this new kind of fuel with fossil diesel fuel comparing with emissions obtained when the engine was fuelled with a fuel mixture containing 30% of conventional biodiesel fuel (rapeseed oil methyl esters) with fossil diesel fuel. The obtained results show that using both types of fuel, no significant differences in CO and NOx concentrations were observed throughout the tested load range. When operating on fuels containing methyl esters from Camelina sativa, HC emissions decreased by 10 to 12% and the smokeness of exhaust gas by 12 to 25%.

Study of Magnetorheological Brush Finishing (MRBF) for Concave Surface of Conformal Optics

2012 ◽  
Vol 497 ◽  
pp. 170-175
Author(s):  
Yun Zhang ◽  
Jing Feng Zhi ◽  
Yue Wang Yu ◽  
Xu Xing Zhu ◽  
Wei Zuo
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Surface Damage ◽  
Aspheric Surface ◽  
Precision Turning ◽  
Good Surface ◽  
Steel Material ◽  
Stainless Steel Material ◽  
Ultra Precision ◽  
Magnetorheological Polishing

Stainless steel; Aspheric mould; Ultra-precision turning; Magnetorheological polishing The ultra precision turning and the inclined-axis type of magnetorheological polishing were introduced for the small aspheric mould of stainless steel. The method was based on the principle of two kinds of processing methods, and the processing feature of stainless steel material. Firstly, the ultra-precision turning was employed to shape aspheric surface rapidly and obtain a relatively good surface. And then, the inclined-axis type of magnetorheological polishing as the final finishing was used to decrease sub-surface damage to obtain better precision. Several of experiments were carried out, the experimental results show that surface roughness can be achieved for Ra 0.0073μm.

Process Optimization for Welding Stainless Steel Clad Material Based on Orthotropic Bridge Plates

2012 ◽  
Vol 178-181 ◽  
pp. 2066-2069 ◽  
Author(s):  
Ji Fang ◽  
Yong Zhi Li
Keyword(s):  
Stainless Steel ◽  
Railway Bridge ◽  
Welding Quality ◽  
Grass Roots ◽  
Steel Material ◽  
Stainless Steel Material ◽  
Under Construction ◽  
First Time ◽  
Welding Stainless Steel

Clad plates welding of stainless steel welding on interlayer between grass roots and the transition layer is a key technology.Structure and properties of welded joints is very uneven,and there have often welding repair cracks. Clad plates of stainless steel material is used to weld under construction in the Southern link’s railway bridge for the first time at home .However, there occurs welding warpage of the convex parts and roughness appears excessive on the overall clad plates and severe deformation, and the quality of railway bridge is affected seriously. Reasons of the impacting welding quality are analyzed and specific measures to control them are proposed and the construction program is optimized.the efficiency and quality of welding can be improved ,a good foundation for the compound plates welding is layed,it will be contribute to ensure the overall quality of the welding quality of railway bridge especially the use of clad plates.

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