Inicio  /  Coatings  /  Vol: 7 Par: 10 (2017)  /  Artículo
ARTÍCULO
TITULO

Microstructure, Mechanical and Corrosion Behaviors of CoCrFeNiAl0.3 High Entropy Alloy (HEA) Films

Libo Gao    
Weibing Liao    
Hongti Zhang    
James Utama Surjadi    
Dong Sun and Yang Lu    

Resumen

The HEA-CoCrFeNiAl0.3 thin film in this study has been successfully developed by radio frequency (RF) magnetron sputtering to meet the increasing demand in engineering applications. Its microstructure and surface profile were investigated accordingly. The as-synthesized HEA film was found to have a homogeneous element distribution and ultra-smooth surface, exhibiting a typical face-centered cubic (FCC) solid solution. The film showed better mechanical properties than its bulk counterpart, with a Young?s modulus and hardness of ~201.4 GPa and ~11.5 GPa, respectively. Furthermore, corrosion tests demonstrated decreased sensitivity to localized corrosion in comparison to the commercial 304 stainless steel in NaCl solution.

 Artículos similares

       
 
Shaofei Zhou, Xu Liang, Jiandong Gao, Bo Ye, Chengyu Li, Jin Qian, Jiangtao Shu and Ying Ye    
This study proposed the use of polyaniline?alkaline copper carbonate composites as anti-corrosion and anti-biofouling concrete additives and established a set of high-dispersion preparation methods for this composite additive. The effects of polyaniline?... ver más

 
Dong Yan, Jianguo Zheng, Xixi Huang and Tao Liu    
A new type of grouting material?FCM (fast cementing material)?is being used in coastal and offshore infrastructure projects, such as harbor and tunnel rehabilitation. In order to investigate how this material performs under different conditions, the comp... ver más
Revista: Applied Sciences

 
Liming Zhu, Tailei Chen, Lingkun Chen, Zhichao Lu, Xiaolun Hu and Xiaoming Huang    
Background: Tied-arch bridges? hangers are crucial load-bearing parts, and their excellent condition directly influences bridge safety. However, assessing in-service hangers? continuing functional performance is irrelevant and incomplete, particularly fo... ver más
Revista: Applied Sciences

 
Tamas Miko, Daniel Petho, Greta Gergely, Dionysios Markatos and Zoltan Gacsi    
Titanium and its alloys have excellent corrosion resistance, heat, and fatigue tolerance, and their strength-to-weight ratio is one of the highest among metals. This combination of properties makes them ideal for aerospace applications; however, high man... ver más
Revista: Aerospace

 
Janis Dalbins, Kristo Allaje, Hendrik Ehrpais, Iaroslav Iakubivskyi, Erik Ilbis, Pekka Janhunen, Joosep Kivastik, Maido Merisalu, Mart Noorma, Mihkel Pajusalu, Indrek Sünter, Antti Tamm, Hans Teras, Petri Toivanen, Boris Segret and Andris Slavinskis    
Nanosatellites have established their importance in low-Earth orbit (LEO), and it is common for student teams to build them for educational and technology demonstration purposes. The next challenge is the technology maturity for deep-space missions. The ... ver más
Revista: Aerospace