scholarly journals Inconel 713C Coating by Cold Spray for Surface Enhancement of Inconel 718

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2048
Author(s):  
Kaiqiang Wu ◽  
Sin Wei Chee ◽  
Wen Sun ◽  
Adrian Wei-Yee Tan ◽  
Sung Chyn Tan ◽  
...  
Keyword(s):  
Cold Spray ◽  
Inconel 718 ◽  
Film Formation ◽  
Protective Layer ◽  
Wear Properties ◽  
Surface Enhancement ◽  
Porosity Level ◽  
Nickel Based Superalloy ◽  
Spray System ◽  
Inconel 713C

Inconel 713C is a nickel-based superalloy usually considered as a material of poor weldability due to its susceptibility to hot cracking in the heat-affected zones. Cold spray, a solid-state deposition technology that does not involve melting, can be proposed as a methodology to deposit Inconel 713C for surface enhancement of other target components. In this study, Inconel 713C coating was deposited on Inconel 718 substrate with a high-pressure cold spray system. The coating was characterized in terms of microstructure, hardness, and wear properties. The cold-sprayed Inconel 713C coating has a low porosity level and refined grain structures. Microhardness of the Inconel 713C coating was much higher than the Inconel 718 substrate. The sliding wear tests showed that the wear resistance of the cold-sprayed Inconel 713C coating is three times higher than the Inconel 718 substrate, making the coating a suitable protective layer. The main wear mechanisms of the coating include oxidation, tribo-film formation, and adhesive wear.

Cold Spray Coatings for Surface Enhancement of Inconel 718

2021 ◽  
pp. 159-162
Author(s):  
Kaiqiang Wu ◽  
Sin Wei Chee ◽  
Wen Sun ◽  
Adrian Wei-Yee Tan ◽  
Sung Chyn Tan ◽  
...  
Keyword(s):  
Cold Spray ◽  
Inconel 718 ◽  
Surface Enhancement ◽  
Spray Coatings

Microstructure and Wear Properties of Laser-clad NiCo Alloy Coating on Inconel 718 Alloy

2021 ◽  
pp. 160412
Author(s):  
Tao Wang ◽  
Chao Wang ◽  
Juanjuan Li ◽  
Linjiang Chai ◽  
Xing Hu ◽  
...  
Keyword(s):  
Inconel 718 ◽  
Alloy Coating ◽  
Wear Properties ◽  
Inconel 718 Alloy

Investigation on size effect of grain wear behavior during grinding nickel-based superalloy Inconel 718

2017 ◽  
Vol 91 (5-8) ◽  
pp. 2907-2917 ◽  
Author(s):  
Chenwei Dai ◽  
Wenfeng Ding ◽  
Jiuhua Xu ◽  
Chen Ding ◽  
Guoqin Huang
Keyword(s):  
Size Effect ◽  
Inconel 718 ◽  
Wear Behavior ◽  
Nickel Based Superalloy

scholarly journals Repair of Precision Castings Made of the Inconel 713C Alloy

2017 ◽  
Vol 17 (3) ◽  
pp. 210-216
Author(s):  
K. Łyczkowska ◽  
J. Adamiec
Keyword(s):  
Model Test ◽  
Aircraft Engine ◽  
Casting Defects ◽  
Exhaust Gas ◽  
Plasma Arc ◽  
Nickel Based Superalloy ◽  
Melted Zone ◽  
Base Materials ◽  
Inconel 713C ◽  
Engine Components

Abstract Inconel 713C precision castings are used as aircraft engine components exposed to high temperatures and the aggressive exhaust gas environment. Industrial experience has shown that precision-cast components of such complexity contain casting defects like microshrinkage, porosity, and cracks. This necessitates the development of repair technologies for castings of this type. This paper presents the results of metallographic examinations of melted areas and clad welds on the Inconel 713C nickel-based superalloy, made by TIG, plasma arc, and laser. The cladding process was carried out on model test plates in order to determine the technological and material-related problems connected with the weldability of Inconel 713C. The studies included analyses of the macro- and microstructure of the clad welds, the base materials, and the heat-affected zones. The results of the structural analyses of the clad welds indicate that Inconel 713C should be classified as a low-weldability material. In the clad welds made by laser, cracks were identified mainly in the heat-affected zone and at the melted zone interface, crystals were formed on partially-melted grains. Cracks of this type were not identified in the clad welds made using the plasma-arc method. It has been concluded that due to the possibility of manual cladding and the absence of welding imperfections, the technology having the greatest potential for application is plasma-arc cladding.

Porosity of Solid and Cored Turbine Blades of Aircraft Engines

2015 ◽  
Vol 226 ◽  
pp. 115-118
Author(s):  
Stanisław Roskosz ◽  
Jacek Nawrocki ◽  
Krzysztof Kubiak
Keyword(s):  
Turbine Blade ◽  
Turbine Blades ◽  
Aircraft Engines ◽  
Pouring Temperature ◽  
Porosity Level ◽  
Lower Porosity ◽  
Thin Walled ◽  
Airfoil Blades ◽  
Inconel 713C ◽  
Design And Manufacture

Paper presents results of quantitative evaluation of porosity conducted on big, thin walled airfoil turbine blades made from Inconel 713C alloy. To decrease mass, blades are design and manufacture like thin walled cored castings. Manufacturing of big thin walled casting airfoil blades is extremely difficult. During exploitation casting work undergo cycle fatigue. In that cause casting should be free of casting defects, including porosity. Conducted research focused on Inconel 713C superalloy pouring temperature effect on porosity level of cored casted turbine blade. Results were compared to porosity of solid casted turbine blade. It was found that porosity of cored blades is lower than solid blade porosity. In cored blades higher porosity is located on airfoil convex side. Airfoil concave side has lower porosity.

scholarly journals Influence of HIP Sintering and Ce/La Additions on the Microstructure and Hardness on Inconel 718 Nickel-based Superalloy

2020 ◽  
Vol 26 (S2) ◽  
pp. 2914-2915
Author(s):  
H. M. Medrano-Prieto ◽  
C.G. Garay-Reyes ◽  
M.A. Ruiz-Esparza-Rodriguez ◽  
Ivanovich Estrada ◽  
J.C. Guía-Tello ◽  
...  
Keyword(s):  
Inconel 718 ◽  
Nickel Based Superalloy

Poly(o-aminophenol) film electrodes: synthesis and characterization and formation mechanisms — A review article

2013 ◽  
Vol 91 (2) ◽  
pp. 91-112 ◽  
Author(s):  
R. Tucceri ◽  
P.M. Arnal ◽  
A.N. Scian
Keyword(s):  
Chemical Structure ◽  
Electrode Materials ◽  
Film Formation ◽  
Protective Layer ◽  
Spectroscopic Characterization ◽  
Spectroscopic Studies ◽  
Formation Mechanisms ◽  
Neutral Media ◽  
Electro Oxidation ◽  
Basic Solutions

This review, which is divided into three parts, concerns electrochemical synthesis, spectroscopic characterization, and formation mechanisms of poly(o-aminophenol) (POAP) film electrodes. The first part of this review is devoted to describing the electropolymerization process of o-aminophenol (o-AP) on different electrode materials and in different electrolyte media by employing both potentiodynamic and potentiostatic methods. The evolution of the voltammogram during the electrosynthesis of POAP and the assignation of the voltammetric peaks to different species, according to the formation mechanism formulated by each author, are described. The effects of some chemical substances and electrochemical pretreatments of the electrode surface, on the electropolymerization process of o-AP, are also considered in this part of the review. The synthesis of POAP in neutral media, which yields a nonconducting polymer, and its use as component of biosensors and protective layer in corrosion processes, are analyzed at the end of the first part. The second part of this review refers to spectroscopic studies carried out by different authors to both identify the products of the o-AP electro-oxidation and elucidate the chemical structure of POAP film electrodes. This second part of the review also describes the different spectroscopic methods employed to study the redox process of POAP, which allows the demonstration of the existence of transient species during the transition of the completely oxidized form of POAP to the completely reduced one. The third part of this review shows the different mechanisms formulated to interpret the POAP film formation from both acid and basic solutions of o-AP. Also, some electrochemical and spectroscopic data which allowed to propos the corresponding formation mechanisms, especially in basic media, are described.

Forces and Chip Morphology of Nickel-Based Superalloy Inconel 718 during High Speed Grinding with Single Grain

2013 ◽  
Vol 589-590 ◽  
pp. 209-214 ◽  
Author(s):  
Jia Yan Zhao ◽  
Yu Can Fu ◽  
Jiu Hua Xu ◽  
Lin Tian ◽  
Lu Yang
Keyword(s):  
Inconel 718 ◽  
High Speed ◽  
Chip Thickness ◽  
Chip Morphology ◽  
Groove Surface ◽  
Nickel Based Superalloy ◽  
High Speed Grinding ◽  
Grinding Mechanism ◽  
Single Grain ◽  
Diamond Grain

Single-grain grinding test plays an important part in studying the high speed grinding mechanism of materials. In this paper, a new experimental system for high speed grinding test with single diamond grain is presented. The differences of surface topography and chip morphology of Inconel 718 machined by single diamond grain and single CBN grain were evaluated. The grinding forces and corresponding maximum undeformed chip thickness were measured under different grinding speeds. The chips, characterized by crack and segment band feature like the cutting segmented chips, were collected to study the high speed grinding mechanism of nickel-based superalloy. The results show that the grinding speed has an important effect on the forces and chip formation, partly due to the temperature variation. As the speed increases, the groove surface becomes smoother.

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