scholarly journals Effect of Carbon Target Current on Ultralow Frictional Behavior of CrCN Coatings under Glycerol Lubrication

Coatings ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1155
Author(s):  
Naiyu Liu ◽  
Jianguo Gao ◽  
Luyao Xu ◽  
Yong Wan ◽  
Ruichuan Li
Keyword(s):  
Stainless Steel ◽  
Friction Coefficient ◽  
Friction And Wear ◽  
304 Stainless Steel ◽  
Stainless Steel Surface ◽  
Wear Properties ◽  
Aisi 304 ◽  
Carbon Target ◽  
Lubricating Layer ◽  
Green Lubricant

The aim of this paper is to find an effective way to reduce the friction and wear of steel. CrCN coating was deposited on AISI 304 stainless steel by magnetron sputtering technology, and the friction and wear properties of the coating under glycerol lubrication were studied. The hardness of CrCN coatings on stainless steel surface can reach to 17.87 GPa when the carbon target deposition current is 2A. The CrCN coating presents low friction coefficient (COF) under the lubrication of glycerol, a highly efficient green lubricant. When the load is 0.5 N, the lowest friction coefficient is only 0.01. XPS analysis on the wear track suggested that glycerol decomposed during sliding and a fluid lubricating layer was formed, which provides ultralow friction. The paper shows that the glycerol could be used as an efficient lubricant for the CrCN coating.

scholarly journals Chemical sanitizers to control biofilms formed by two Pseudomonas species on stainless steel surface

2012 ◽  
Vol 32 (1) ◽  
pp. 142-150 ◽  
Author(s):  
Danila Soares Caixeta ◽  
Thiago Henrique Scarpa ◽  
Danilo Florisvaldo Brugnera ◽  
Dieyckson Osvani Freire ◽  
Eduardo Alves ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Stainless Steel ◽  
Biofilm Formation ◽  
Skim Milk ◽  
304 Stainless Steel ◽  
Stainless Steel Surface ◽  
Aisi 304 ◽  
Pseudomonas Species ◽  
Sodium Dichloroisocyanurate ◽  
Different Temperatures

The biofilm formation of Pseudomonas aeruginosa and Pseudomonas fluorescens on AISI 304 stainless steel in the presence of reconstituted skim milk under different temperatures was conducted, and the potential of three chemical sanitizers in removing the mono-species biofilms formed was compared. Pseudomonas aeruginosa cultivated in skim milk at 28 °C presented better growth rate (10.4 log CFU.mL-1) when compared with 3.7 and 4.2 log CFU.mL-1 for P. aeruginosa and P. fluorescens cultivated at 7 °C, respectively. Pseudomonas aeruginosa formed biofilm when cultivated at 28 °C. However, only the adhesion of P. aeruginosa and P. fluorescens was observed when incubated at 7 °C. The sodium dichloroisocyanurate was the most efficient sanitizer in the reduction of the adhered P. aeruginosa cells at 7 and 28 °C and those on the biofilm, respectively. The hydrogen peroxide was more effective in the reduction of adhered cells of P. fluorescens at 7 °C.

Coating of Fe-Mn-Si Shape Memory Materials on AISI 304 Stainless Steel by Laser Cladding Method

2013 ◽  
Vol 477-478 ◽  
pp. 1393-1396
Author(s):  
Peng Xu ◽  
Heng Ju ◽  
Cheng Xin Lin ◽  
Chao Yu Zhou
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Friction Coefficient ◽  
Shape Memory ◽  
Laser Cladding ◽  
304 Stainless Steel ◽  
Wear Loss ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Shape Memory Materials

Using laser cladding method, the coating of Fe-Mn-Si shape memory materials (SMM) was prepared on the surface of AISI 304 stainless steel. The microstructure and microhardness of SMM laser cladding coating were measured by using a metallographic microscope and a scanning electron microscope, respectively. The phase composition was determined by X-ray diffraction. The wear resistance was evaluated on a high speed reciprocating friction tester. The results show that microhardness of the SMM coating is about Hv263, higher than that of the substrate (Hv225); the SMM coating is composed of ε-martensite and γ-austenite phases; the average friction coefficient of the substrate and SMM coating is about 0.85 and 0.71; the SMM laser cladding coating is of excellent wear resistance validated by friction coefficient, worn-out appearance and wear loss.

Tribological Properties of Ion Implanted Amorphous Fe50Ti50 Films

1987 ◽  
Vol 93 ◽  
Author(s):  
G.-P. Hirvonen ◽  
M. Nastasi ◽  
J. W. Mayer
Keyword(s):  
Tribological Properties ◽  
Friction And Wear ◽  
Peak Pressure ◽  
Ion Beam ◽  
Surface Friction ◽  
304 Stainless Steel ◽  
Wear Properties ◽  
Aisi 304 ◽  
Pin On Disc ◽  
Friction And Wear Properties

ABSTRACTA surface layer of Fe50Ti50 on AISI 304 stainless steel was produced by ion beam mixing a Fe-Ti multilayer structure. Subsequently, the layer was implanted with C, N, or C+N ions. The dry sliding properties of these surfaces were tested using a ceramic pin as a rider in pin-on-disc measurements. Implantations produced significant improvements in the surface friction and wear properties. Samples implanted with C or C+N showed good tribological properties even under conditions where the Herzian peak pressure exceeded the yield strength of the substrate. As a result of different treatments the appearance of the wear tracks examined with a scanning electron microscope was also changed.

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