An Overview of PVD Coating Development for Co-Based Alloys

2009 ◽  
pp. 169-169-10
Author(s):  
MA Pellman
Keyword(s):  
Pvd Coating

PVD Coated Bipolar Plates for PEM Fuel Cells

2005 ◽  
Vol 2 (4) ◽  
pp. 290-294 ◽  
Author(s):  
Shuo-Jen Lee ◽  
Ching-Han Huang ◽  
Yu-Pang Chen ◽  
Chen-Te Hsu
Keyword(s):  
Corrosion Resistance ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Physical Vapor Deposition ◽  
Corrosion Current ◽  
Pem Fuel Cells ◽  
Bipolar Plates ◽  
Coating Materials ◽  
Pvd Coating ◽  
Simulated Fuel

Aluminum was considered a good candidate material for bipolar plates of the polymer electrolyte membrane (PEM) fuel cells due to its low cost, light weight, high strength and good manufacturability. But there were problems of both chemical and electrochemical corrosions in the PEM fuel cell operating environment. The major goals of this research are to find proper physical vapor deposition (PVD) coating materials which would enhance surface properties by making significant improvements on corrosion resistance and electrical conductivity at a reasonable cost. Several coating materials had been studied to analyze their corrosion resistance improvement. The corrosion rates of all materials were tested in a simulated fuel cell environment. The linear polarization curve of electrochemical method measured by potentiostat instrument was employed to determine the corrosion current. Results of the corrosion tests indicated that all of the coating materials had good corrosion resistance and were stable in the simulated fuel cell environment. The conductivities of the coated layers were better and the resistances changed very little after the corrosion test. At last, single fuel cells were made by each PVD coating material. Fuel cell tests were conducted to determine their performance w.r.t. that was made of graphite. The results of fuel cell tests indicated that metallic bipolar plates with PVD coating could be used in PEM fuel cells.

scholarly journals Hard Protective Layers on Forging Dies—Development and Applications

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 376
Author(s):  
Jerzy Smolik
Keyword(s):  
Surface Engineering ◽  
Nitrided Layer ◽  
Research Work ◽  
Operating Conditions ◽  
Pvd Coating ◽  
Precise Diagnosis ◽  
Coating Type ◽  
Important Quality ◽  
Material Solution ◽  
Hybrid Layers

The article presents a summary of many years of activities in the area of increasing the durability of forging dies. The results of comprehensive research work on the analysis of the destructive mechanisms of forging dies and the possibility of increasing their durability with the use of modern surface engineering methods are presented. Great possibilities in terms of shaping operational properties of forging dies by producing hybrid layers of the “Nitrided Layer + PVD Coating” (NL + PVD coating) type were confirmed. An analysis of changes in forging dies durability under various operating conditions was performed, i.e., forging—die—forging press—pressures. It has been shown that the variety of parameters of the forging process, including forgings’ geometry and weight, materials, precision, pressures applied, and, what is very important, quality of machines, makes it very difficult to compare the effectiveness of various PVD coating solutions in the process of increasing the durability of forging dies. Hybrid layers of the “NL + PVD coating” type create great possibilities in shaping the operational properties of tools and machine elements. However, in each application a precise diagnosis of the wear mechanism and the design of an individual PVD coating material solution is required.

scholarly journals CVD and PVD coating process modelling by using artificial neural networks

2012 ◽  
Vol 1 (1) ◽  
pp. 46 ◽  
Author(s):  
Amir Mahyar Khorasani ◽  
Mohammad Reza Solymany yazdi ◽  
Mehdi Faraji ◽  
Alex Kootsookos
Keyword(s):  
Thin Film ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Chemical Vapor ◽  
Film Coating ◽  
Deposition Process ◽  
Thin Film Coating ◽  
Mlp Neural Network ◽  
Titanium Thin Film ◽  
Pvd Coating

Thin-film coating plays a prominent role on the manufacture of many industrial devices. Coating can increase material performance due to the deposition process. Having adequate and precise model that can predict the hardness of PVD and CVD processes is so helpful for manufacturers and engineers to choose suitable parameters in order to obtain the best hardness and decreasing cost and time of industrial productions. This paper proposes the estimation of hardness of titanium thin-film layers as protective industrial tools by using multi-layer perceptron (MLP) neural network. Based on the experimental data that was obtained during the process of chemical vapor deposition (CVD) and physical vapor deposition (PVD), the modeling of the coating variables for predicting hardness of titanium thin-film layers, is performed. Then, the obtained results are experimentally verified and very accurate outcomes had been attained.

scholarly journals Pretreatment Prior to PVD Coating of the Surface of Cold Working Die Steel

2013 ◽  
Vol 64 (12) ◽  
pp. 677-681 ◽  
Author(s):  
Shinsuke KUNITSUGU ◽  
Ryouta NAKANISHI ◽  
Hiroyuki YODEN ◽  
Ken MURAOKA
Keyword(s):  
Cold Working ◽  
Die Steel ◽  
Pvd Coating

Investigation on friction and wear performance of volcano-shaped textured PVD coating

2021 ◽  
pp. 128044
Author(s):  
Jie Yang ◽  
Hao Fu ◽  
Yuyang He ◽  
Zehui Gu ◽  
Yonghong Fu ◽  
...  
Keyword(s):  
Friction And Wear ◽  
Wear Performance ◽  
Pvd Coating

Blunting of the Cutting Edges of Hard-Alloy Mills and PVD Coating Application

2020 ◽  
Vol 40 (12) ◽  
pp. 1094-1096
Author(s):  
A. A. Koryazhkin ◽  
D. S. Vorob’ev
Keyword(s):  
Hard Alloy ◽  
Coating Application ◽  
Pvd Coating

scholarly journals Tracing C changes in a C/CrC PVD coating using Raman spectroscopy and EELS

2010 ◽  
Vol 241 ◽  
pp. 012108 ◽  
Author(s):  
Z Zhou ◽  
I M Ross ◽  
W M Rainforth ◽  
P Eh Hovsepian
Keyword(s):  
Raman Spectroscopy ◽  
Pvd Coating

scholarly journals Composite Layers “MgAl Intermetalic Layer / PVD Coating” Obtained On The AZ91D Magnesium Alloy By Different Hybrid Surface Treatment Methods

2015 ◽  
Vol 60 (2) ◽  
pp. 1031-1035 ◽  
Author(s):  
J. Smolik ◽  
A. Mazurkiewicz ◽  
J. Kacprzyńska-Gołacka ◽  
M. Rydzewski ◽  
M. Szota ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Magnesium Alloys ◽  
Surface Engineering ◽  
Composite Layer ◽  
Electron Beam Evaporation ◽  
Treatment Technology ◽  
Corrosion Properties ◽  
Pvd Coating ◽  
Composite Layers ◽  
Coating Composite

Abstract Magnesium alloys have very interesting physical properties which make them ‘materials of the future’ for tools and machine components in many industry areas. However, very low corrosion and tribological resistance of magnesium alloys hampers the implementation of this material in the industry. One of the methods to improve the properties of magnesium alloys is the application of the solutions of surface engineering like hybrid technologies. In this paper, the authors compare the tribological and corrosion properties of two types of “MgAlitermetalic / PVD coating” composite layers obtained by two different hybrid surface treatment technologies. In the first configuration, the “MgAlitermetalic / PVD coating” composite layer was obtained by multisource hybrid surface treatment technology combining magnetron sputtering (MS), arc evaporation (AE) and vacuum heating methods. The second type of a composite layer was prepared using a hybrid technology combined with a diffusion treatment process in Al-powder and the electron beam evaporation (EB) method. The authors conclude, that even though the application of „MgAlitermetalic / PVD coating” composite layers can be an effective solution to increase the abrasive wear resistance of magnesium alloys, it is not a good solution to increase its corrosion resistance.

scholarly journals STUDI BANDING PELAPISAN MATERIAL SKD11 DENGAN METODE PHYSICAL VAPOUR DEPOSITION DAN THERMAL DIFUSION PADA KOMPONEN INSERT DIES MESIN STAMPING PRESS

2017 ◽  
Vol 6 (1) ◽  
pp. 21
Author(s):  
Robertus Suryo Bisono
Keyword(s):  
Vapour Deposition ◽  
Physical Vapour Deposition ◽  
Pvd Coating

Telah dilakukan pelapisan menggunakan Titanium Alumunium Nitrid (TIAlN) dengan metode PVD Coating (Physical Vapour Diposition) dan TD (Thermal Difusion)  untuk perlakuan permukaan baja perkakas SKD11 sebagai material Insert Die komponen mesin Stamping Press setelah perlakuan hardening. Perlakuan permukaan dimaksudkan untuk meningkatkan kualitas permukaan khususnya kekerasan dan perubahan struktur mikro yang terjadi. Untuk mengetahui tingkat keberhasilan dari perlakuan permukaan tersebut dilakukan dengan memvariasi waktu proses, masing masing 2 sample diproses pada 4 jam, 5 jam dan 6 jam dengan temperatur  proses masing-masing  400ᴼ C. Kemudian satu dari tiap variable sample tersebut di panaskan pada suhu 1000ᴼ C selama 1 jam, pendinginan dilalukan dengan udara bebas tanpa proses quenching Untuk mengetahui hasilnya dilakukan uji kekerasan mikro Vickers, pengamatan struktur mikro Scanning Eectron Microscope (SEM), dan pengujian komposisi dengan Energy Defersif Sepectroscopy (EDS) untuk mengetahui tingkat penyerapan material terdifusi. Hasil menunjukan bahwa SKD11 yang dilapisi TiAlN dengan metode PVD selama 6 jam menghasilkan lapisan yang paling keras yaitu 1363 HV dengan ketebalan lapisan 5,3µm. Proses pemanasan 1000⁰C selama 1 jam pada sample mengakibatkan penurunan kekerasan sample dan lapisan permukaan sample menjadi lebih tebal hingga 50µm. Penambahan lapisan diakibatkan oleh terdifusinya atom atom yang menyusun lapisan TiAlN ke dalam substrat serta keluarnya atom atom penyusun lapisan hingga membentuk lapisan kompleks.

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