Investigation on the effect of laser remelting for laser cladding nickel based alloy

2019 ◽  
Vol 31 (2) ◽  
pp. 022512 ◽  
Author(s):  
Yanzhe Zhao ◽  
Jie Sun ◽  
Kai Guo ◽  
Jianfeng Li
Keyword(s):  
Laser Cladding ◽  
Laser Remelting ◽  
Nickel Based Alloy

A Novel Grain Refinement Design to Inhibit Liquation Cracking in Laser Cladding Non-Weldable Nickel-Based Alloy

2020 ◽  
Author(s):  
Zhenlin Zhang ◽  
Yue Zhao ◽  
Jiguo Shan ◽  
Aiping Wu ◽  
Tokita Shun ◽  
...  
Keyword(s):  
Grain Refinement ◽  
Laser Cladding ◽  
Liquation Cracking ◽  
Nickel Based Alloy

Friction wear property of laser surface processed Ni-based amorphous alloy coatings

2019 ◽  
Vol 33 (01n03) ◽  
pp. 1940014
Author(s):  
Ruifeng Li ◽  
Yi Qiu ◽  
Yanyan Zhu
Keyword(s):  
Amorphous Alloy ◽  
Laser Cladding ◽  
Laser Scanning ◽  
Wear Behavior ◽  
Testing Machine ◽  
Scanning Speed ◽  
Nominal Composition ◽  
Wear Property ◽  
Laser Remelting ◽  
Wear Tests

A Ni–Fe–B–Si–Nb amorphous alloy was deposited on a steel substrate surface via a laser cladding process, and a laser cladding plus laser remelting process. The wear behavior of the laser processed samples and the bulk metallic glass (BMG) sample with the same nominal composition were tested using a pin-on-disc type testing machine. The nano-mechanical properties of the samples were measured with a nano-characterization system. The friction wear tests showed that deep grooves and wear debris were formed on the worn surface of the laser cladded coating, while only shallow grooves for the laser remelted coatings. The friction coefficients of laser remelted coatings and BMG were lower than the laser cladded coating. The wear mass losses of the laser remelted coating were less than the BMG when the laser remelting scanning speed was higher than 6 mm/min. The nano-hardness and elastic modulus of the remelted coating is higher than that of the laser cladded coating. Also, they increase with the increasing laser scanning speed with 1227.9 HV and 277.4 GPa when the remelting scanning speed is 8 m/min. Based on the nano-indentation and friction wear tests results, it was found that the friction wear properties of the laser cladded coating, laser remelted coatings and BMG related well to the ratio of H3/E2. A higher value of H3/E2 can lead to a better wear resistance property.

Wear resistance of nickel-based alloy coating formed by multilayer laser cladding

2018 ◽  
Vol 5 (12) ◽  
pp. 126508 ◽  
Author(s):  
Shuhua Lu ◽  
Xinlong Wei ◽  
Juan Zhao ◽  
Xiang Ling
Keyword(s):  
Wear Resistance ◽  
Laser Cladding ◽  
Alloy Coating ◽  
Nickel Based Alloy

Preparation and Properties Study of Laser Cladding of Ni-Based Alloy on Copper

2010 ◽  
Vol 455 ◽  
pp. 216-219
Author(s):  
Y.S. Wang ◽  
F.D. Zhu ◽  
N.W. Liu
Keyword(s):  
Plasma Spraying ◽  
Laser Cladding ◽  
Alloy Coating ◽  
Alloy Layer ◽  
Laser Remelting ◽  
Yag Laser ◽  
Cladding Layer ◽  
Metallurgical Bonding ◽  
Organization Analysis ◽  
Surface Performance

In order to improve the surface Performance of thick copperplate, A Ni- Cr alloy coating metallurgically bonded onto thick copperplate is performed by YAG laser remelting plasma spraying coating process. In laser cladding processing, it is difficult to get good metallurgical bonding between the layer and copperplate. Plasma spraying technology is developed to get a alloy layer on the surface of thick copperplate, and then using YAG laser cladding method to make a coating. The results of Micro organization analysis indicate that the cladding layer and substrate form favorable metallurgical bonding, as a narrow metallurgical bonding zone, about 3m in thickness. The structure is more compact compared with witch of plasma spraying coating, and the crystal grains are refined grain.

Investigation of Crystallization Process of a Single Crystal Nickel-Based Alloy during the Laser Multilayer Cladding

2019 ◽  
Vol 822 ◽  
pp. 481-488
Author(s):  
R.S. Korsmik ◽  
Gleb A. Turichin ◽  
G.G. Zadykyan ◽  
Andrey Igorevich Zhitenev
Keyword(s):  
Single Crystal ◽  
Gas Turbine ◽  
Laser Cladding ◽  
Crystallization Process ◽  
Turbine Blades ◽  
Regression Equations ◽  
Microstructure Formation ◽  
Technological Parameters ◽  
Gas Turbine Blades ◽  
Nickel Based Alloy

The article shows the results of multilayer laser cladding of heat-resistant single crystal nickel-based alloy ZhS32-VI (CSMX-4 analogue). The influence of the main technological parameters on geometry and microstructure formation of deposited beads was investigated. Based on obtained dependencies, the regression equations are compiled for describing the shape of bead and the ratio of directional and equiaxial crystallized sections. The obtained dependencies of regime parameters nomination allow restoring the gas-turbine blades by the method of laser cladding.

Effect of Laser Remelting on Microstructure and Properties of In-Situ Coating by Laser Cladding on TC4 Titanium Alloy

2012 ◽  
Vol 49 (4) ◽  
pp. 041403
Author(s):  
林英华 Lin Yinghua ◽  
李月华 Li Yuehua ◽  
陈志勇 Chen Zhiyong ◽  
朱卫华 Zhu Weihua ◽  
文向东 Wen Xiangdong ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Laser Cladding ◽  
Laser Remelting ◽  
Microstructure And Properties ◽  
Tc4 Titanium Alloy ◽  
In Situ Coating

Elimination of voids by laser remelting during laser cladding Ni based alloy on gray cast iron

2019 ◽  
Vol 112 ◽  
pp. 30-38 ◽  
Author(s):  
Yongjian Li ◽  
Shiyun Dong ◽  
Shixing Yan ◽  
Xiaoting Liu ◽  
Enzhong Li ◽  
...  
Keyword(s):  
Cast Iron ◽  
Laser Cladding ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Laser Remelting
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