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

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

The Microstructure and Wear-Resistant Properties of Laser Cladding Ni-Based WC Alloy on Q345 Steel Surface

2014 ◽  
Vol 556-562 ◽  
pp. 189-192 ◽  
Author(s):  
Shun Min Zhu ◽  
Ya Dong Zhang
Keyword(s):  
Wear Resistance ◽  
Grain Refinement ◽  
Laser Cladding ◽  
Steel Surface ◽  
Surface Hardness ◽  
Wear Resistant ◽  
Cladding Layer

With the laser cladding technology, 70%Ni60A+30%WC cladding layer was cladded on the surface of Q345 steel. And the phase, microstructure and wear resistance of cladding layer were analyzed. Experiments show that the Ni-based WC alloy laser cladding treatment on Q345 steel surface have a great upgrade on grain refinement, surface hardness and wear-resistance of Q345 steel surface.

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.

scholarly journals Plasma Cladding and High-Efficient CO2 Laser Cladding of Nickel Based Alloy Powder on the Machinery Parts

2005 ◽  
Vol 23 (3) ◽  
pp. 412-421 ◽  
Author(s):  
Guojian XU ◽  
Munaharu KUTSUNA ◽  
Hong ZHANG ◽  
Zhongjie LIU ◽  
Mitsuaki HANEDA ◽  
...  
Keyword(s):  
Laser Cladding ◽  
Co2 Laser ◽  
Alloy Powder ◽  
Plasma Cladding ◽  
High Efficient ◽  
Nickel Based Alloy

scholarly journals The Effect of Laser Scanning Speed on Microstructure and Performance of Cr3C2-NiCr Cermet Fabricated by in-situ Laser Cladding

2021 ◽  
pp. X
Author(s):  
Deyuan LOU ◽  
Shaokun YANG ◽  
Sheng MEI ◽  
Qing LIU ◽  
Jian CHENG ◽  
...  
Keyword(s):  
Laser Cladding ◽  
Laser Scanning ◽  
Scanning Speed ◽  
Powder Mixtures ◽  
Laser Scanning Speed ◽  
Nickel Based Alloy ◽  
And Performance ◽  
Microstructure And Performance ◽  
Carbide Content

To explore the effect of laser scanning speed on the microstructure and performance of Cr3C2-NiCr cermet layers fabricated by in-situ laser cladding, Cr3C2-NiCr cermet layers were laser cladded from Ni/Cr/Graphite (25:65:10 wt.%) elemental powder mixtures. The microstructures of the laser cladded cermet layers and the formation mechanism were investigated. In addition, the effect of laser scanning speed on the microstructure, friction and corrosion performance of the Cr3C2-NiCr cermet layers was studied. The results indicated that the in-situ laser cladded Cr3C2-NiCr cermet layers were composed of NiCr binder and Cr3C2. The laser scanning speed had a significant influence on the carbide content, composition and size. Furthermore, it affected the in-situ laser cladded cermet layer’s hardness and wear resistance. The corrosion resistance of the in-situ laser cladded cermet layer was superior to that of laser cladded nickel-based alloy and was improved with decreasing laser scanning speed.

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