The Study about the Effect of Work-Piece Space on Copper-Cerium Alloy Case Thickness and Component

2013 ◽  
Vol 803 ◽  
pp. 285-288
Author(s):  
Bo Gao ◽  
Jin Yong Xu ◽  
Wen Yao Luo ◽  
Yi Guang Wang ◽  
Cheng Gao
Keyword(s):  
Stainless Steel ◽  
Hollow Cathode ◽  
Case Depth ◽  
Work Piece ◽  
Plasma Surface ◽  
Glow Plasma

In this paper, the author uses double glow plasma surface metallurgy technology, prepares antibacterial stainless steel with copper-cerium case on its surface, does some research on how work-piece space affects Copper-cerium case thickness and component in the case. According to experiment, we find in the range of 10 mm to 25 mm, copper-cerium case depth firstly increase and then decrease with the distance expands; copper-cerium component first rises and then falls with the work-piece space .When the distance is 15mm, hollow cathode effect forms between two plates, we can obtain ideal copper-cerium alley case.

DOUBLE GLOW PLASMA SURFACE TITANIZING ON AISI 316 STAINLESS STEEL WITH IMPROVED WEAR RESISTANCE: EFFECTS OF PROCESS PARAMETERS

2019 ◽  
Vol 27 (07) ◽  
pp. 1950178
Author(s):  
YONG MA ◽  
NAIMING LIN ◽  
QIANG LIU ◽  
JIAOJUAN ZOU ◽  
XIUZHOU LIN ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Wear Rate ◽  
Process Parameters ◽  
Coating Thickness ◽  
Optimal Process ◽  
Plasma Surface ◽  
Aisi 316 Stainless Steel ◽  
Aisi 316 ◽  
Glow Plasma

Using the double glow plasma surface alloying technique, a titanizing coating with improved wear resistance can be prepared on AISI 316 stainless steel. The purpose of this paper is to investigate process parameter effects by orthogonal array design. Four main factors, titanizing temperature, holding time, voltage difference and electrode distance, are adopted in orthogonal experiments. For each factor, four levels are set. The range analysis is used to investigate the factor and level influences on the coating thickness and specific wear rate. Meanwhile, the analysis of variance method is applied to calculate the contributions of each factor. The results indicate that temperature is most critical. In balancing the coating thickness and the wear property, the optimal process parameters are 950∘C, 3[Formula: see text]h, 200[Formula: see text]V and 18[Formula: see text]mm. Corresponding to the optimal process, the thickness and the specific wear rate of the titanizing coating are 10[Formula: see text][Formula: see text]m and 2.609E−05 mm3⋅ N−1⋅ m−1, respectively.

Wear Resistance of Plasma Surface Copper Infiltrated on 0Cr18Ni9 Stainless Steel

2012 ◽  
Vol 217-219 ◽  
pp. 1297-1300
Author(s):  
Jin Yong Xu ◽  
Jing Chun Zhang ◽  
Yan Tang ◽  
Feng Tang ◽  
Zhao Rong Li ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Friction Coefficient ◽  
Wear Rate ◽  
Comparative Test ◽  
Plasma Surface ◽  
Glow Plasma

The copper infiltrated stainless steel was formed by double glow plasma surface metallurgy technology on 0Cr18Ni9 steel. A comparative test with untreated samples was carried out. The results indicates that the friction coefficient decreases with the load increasing, and copper infiltrated stainless steel is superior to untreated samples in wear rate and wear resistance, finally makes an analysis of the reasons.

scholarly journals Recent Advances in Hollow Cathode Technology for Plasma-Enhanced ALD—Plasma Surface Modifications for Aluminum and Stainless-Steel Cathodes

Coatings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1506
Author(s):  
Kenneth Scott Alexander Butcher ◽  
Vasil Georgiev ◽  
Dimka Georgieva
Keyword(s):  
Stainless Steel ◽  
Surface Modification ◽  
Hollow Cathode ◽  
Atomic Layer ◽  
Plasma Surface ◽  
Metal Work Function ◽  
Gas Plasma ◽  
Lower Oxygen ◽  
Order Of Magnitude ◽  
Langmuir Probe Measurements

Recent designs have allowed hollow cathode gas plasma sources to be adopted for use in plasma-enhanced atomic layer deposition with the benefit of lower oxygen contamination for non-oxide films (a brief review of this is provided). From a design perspective, the cathode metal is of particular interest since—for a given set of conditions—the metal work function should determine the density of electron emission that drives the hollow cathode effect. However, we found that relatively rapid surface modification of the metal cathodes in the first hour or more of operation has a stronger influence. Langmuir probe measurements and hollow cathode electrical characteristics were used to study nitrogen and oxygen plasma surface modification of aluminum and stainless-steel hollow cathodes. It was found that the nitridation and oxidation of these metal cathodes resulted in higher plasma densities, in some cases by more than an order of magnitude, and a wider range of pressure operation. Moreover, it was initially thought that the use of aluminum cathodes would not be practical for gas plasma applications, as aluminum is extremely soft and susceptible to sputtering; however, it was found that oxide and nitride modification of the surface could protect the cathodes from such problems, possibly making them viable.

The Effects of Voltage on Cu-Ce Infiltration Layer of 304 Stainless Steel by Double Glow Plasma Surface Metallurgy

2012 ◽  
Vol 538-541 ◽  
pp. 298-301
Author(s):  
Feng Tang ◽  
Jin Yong Xu ◽  
Yan Tang ◽  
Cheng Gao ◽  
Peng Gao ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Surface Hardness ◽  
304 Stainless Steel ◽  
Stainless Steel Surface ◽  
Layer Depth ◽  
Cathode Voltage ◽  
Plasma Surface ◽  
Source Voltage ◽  
Glow Plasma ◽  
Depth Increase

The Cu-Ce infiltration layer was formed on 304 Stainless Steel surface by double glow plasma surface metallurgy technology. The effects of source voltage and cathode voltage on surface alloying concentration, surface hardness and infiltration layer depth were analyzed by comparative test. The results showed: In the experimental range, the contents of Cu and Ce, surface hardness, deposition layer depth increase with the source voltage increasing, which is contrary to the cathode voltage; the diffusion layer depth increases with either voltage increasing in a certain range.

The Effects of Temperature and Time on Cu-Ce Infiltration Layer of 304 Stainless Steel by Double Glow Plasma Surface Metallurgy

2013 ◽  
Vol 675 ◽  
pp. 322-325
Author(s):  
Feng Tang ◽  
Jin Yong Xu ◽  
Yan Tang ◽  
Cheng Gao ◽  
Bo Gao ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Heat Insulation ◽  
Surface Hardness ◽  
304 Stainless Steel ◽  
Stainless Steel Surface ◽  
Layer Depth ◽  
Plasma Surface ◽  
Effects Of Temperature ◽  
Glow Plasma ◽  
Depth Increase

The Cu-Ce infiltration layer was formed on 304 Stainless Steel surface by double glow plasma surface metallurgy technology. The effects of heat insulation temperature and heat insulation time on surface alloying concentration, surface hardness and infiltration layer depth were analyzed by comparative test. The results showed: In the experimental range, the contents of Cu and Ce, surface hardness, diffusion layer depth increase with the temperature and time increasing; the deposition layer depth increases with time increasing and decreases with temperature increasing in a certain range.

ChemInform Abstract: Double Glow Plasma Surface Metallurgy and Its Applications

ChemInform ◽  
2010 ◽  
Vol 41 (26) ◽  
pp. no-no
Author(s):  
Zhong Xu ◽  
Zhiyong He ◽  
Pingze Zhang
Keyword(s):  
Plasma Surface ◽  
Glow Plasma
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