High-Temperature Oxidation Resistance of Co-Based Alloy Coatings by Ultrasonic Vibration Assisted Laser Cladding

2019 ◽  
Vol 46 (1) ◽  
pp. 0102006
Author(s):  
徐家乐 Xu Jiale ◽  
周建忠 Zhou Jianzhong ◽  
谭文胜 Tan Wensheng ◽  
孟宪凯 Meng Xiankai ◽  
黄舒 Huang Shu ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
Ultrasonic Vibration ◽  
Laser Cladding ◽  
High Temperature Oxidation ◽  
Temperature Oxidation

Improving the high-temperature oxidation resistance of H13 steel by laser cladding with a WC/Co-Cr alloy coating

2016 ◽  
Vol 63 (3) ◽  
pp. 171-176 ◽  
Author(s):  
Xiaodong Zhang ◽  
Xiaohua Jie ◽  
Liuyan Zhang ◽  
Song Luo ◽  
Qiongbin Zheng
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Oxidation Resistance ◽  
Laser Cladding ◽  
High Temperature Oxidation ◽  
Steel Substrate ◽  
Alloy Coating ◽  
H13 Steel ◽  
Temperature Oxidation ◽  
Content Type

Purpose This paper aims to discuss that a WC/Co-Cr alloy coating was applied to the surface of H13 steel by laser cladding. Design/methodology/approach The oxidation behavior of the WC/Co-Cr alloy coating at 600°C was investigated by comparing it with the performance of the steel substrate to better understand the thermal stability of H13 steel. Findings The results showed that the WC/Co-Cr alloy coating exhibited better high-temperature oxidation resistance and thermal stability than did uncoated H13 steel. The coated H13 steel had a lower mass gain rate and higher microhardness than did the substrate after different oxidation times. Originality/value The WC/Co-Cr alloy coating was composed of e-Co, CW3, Co6W6C, Cr23C6 and Cr7C3; this mixture offered good thermal stability and better high-temperature oxidation resistance.

Study on Microstructure and High Temperature Oxidation Resistance of Laser Cladding Coating Prepared by Ni60-TiO2-B4C-Al Powders

2014 ◽  
Vol 488-489 ◽  
pp. 201-204
Author(s):  
Fang Zhou ◽  
Hui Yao Yang ◽  
Liang Hua He
Keyword(s):  
High Temperature ◽  
Composite Coating ◽  
Oxidation Resistance ◽  
Laser Cladding ◽  
High Temperature Oxidation ◽  
Fine Particles ◽  
Substrate Material ◽  
Temperature Oxidation ◽  
Metal Atoms ◽  
Metallurgical Bond

The composite coating with TiC-TiB2-Ni3Al was fabricated on 45 steel by laser cladding. The microstructure and high temperature oxidation resistance of coating were investigated. The results show that, the main phases of coating are α-Fe, TiC, TiB2, Ni3Al, (Fe,Cr)7C3 and Al2O3. The interface of coating and substrate material is metallurgical bond; the coating is uniform and dense without cracks and pores. The fine particles of TiC and TiB2 disperse uniformly in the coating. After oxidized at 1000°C for 60 h, the oxidation film is consisted of spherical oxides of Al, Ti and Cr, they can hinder the diffusion between oxygen and metal atoms and make the coating possess outstanding high temperature oxidation resistance.

Study on Tribology and High-Temperature Oxidation Resistance of Laser Cladding Composite Coatings on Ti6Al4V Alloy

2015 ◽  
Vol 42 (10) ◽  
pp. 1003004
Author(s):  
余鹏程 Yu Pengcheng ◽  
刘秀波 Liu Xiubo ◽  
陆小龙 Lu Xiaolong ◽  
朱刚贤 Zhu Gangxian ◽  
陈瑶 Chen Yao ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
Laser Cladding ◽  
High Temperature Oxidation ◽  
Composite Coatings ◽  
Ti6al4v Alloy ◽  
Temperature Oxidation

Microstructure and high-temperature oxidation resistance of laser cladding in-situ synthesis Ti-Al-Si composite coatings

2019 ◽  
Vol 27 (2) ◽  
pp. 316-325
Author(s):  
刘洪喜 LIU Hong-xi ◽  
赵艳爽 ZHAO Yan-shuang ◽  
张晓伟 ZHANG Xiao-wei ◽  
郝轩宏 HAO Xuan-hong ◽  
张璐璐 ZHANG Lu-lu
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
Laser Cladding ◽  
High Temperature Oxidation ◽  
Composite Coatings ◽  
In Situ Synthesis ◽  
Temperature Oxidation

Tribology and high-temperature oxidation behaviors of NiCrBSiFe composite coatings on Ti6Al4V alloy by laser cladding

RSC Advances ◽  
2015 ◽  
Vol 5 (93) ◽  
pp. 76516-76525 ◽  
Author(s):  
Peng-Cheng Yu ◽  
Xiu-Bo Liu ◽  
Xiao-Long Lu ◽  
Shi-Jie Qiao ◽  
Yong-Jie Zhai ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
Laser Cladding ◽  
High Temperature Oxidation ◽  
Composite Coatings ◽  
Ti6al4v Alloy ◽  
Temperature Oxidation ◽  
High Temperature Wear ◽  
Oxidation Behaviors

In order to improve the high-temperature wear and oxidation resistance of Ti6Al4V alloys simultaneously, NiCrBSiFe composite coatings were deposited on a Ti6Al4V alloy by laser cladding.

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