scholarly journals Microstructure and Property of Fe-based Wear-resistant Alloy Coating Prepared by Laser Cladding on the Surface of Super High-speed Elevator Parts

2019 ◽  
Vol 585 ◽  
pp. 012006
Author(s):  
Wei Zhang ◽  
Qiuhong Feng ◽  
Eryi Wang ◽  
Luyu Zheng
Keyword(s):  
Laser Cladding ◽  
High Speed ◽  
Alloy Coating ◽  
Wear Resistant ◽  
Resistant Alloy

Improved Machining of Reconditioned Parts with a Wear-Resistant Alloy Coating

2020 ◽  
Vol 40 (7) ◽  
pp. 556-558
Author(s):  
V. V. Malykhin ◽  
N. M. Gaidash ◽  
E. F. Romanenko ◽  
S. G. Novikov ◽  
F. V. Novikov ◽  
...  
Keyword(s):  
Alloy Coating ◽  
Wear Resistant ◽  
Resistant Alloy

Investigation on crack behavior of Ni60A alloy coating produced by coaxial laser cladding

2021 ◽  
Author(s):  
Bowen Shi ◽  
Tao Li ◽  
Dong Wang ◽  
Xiaorui Zhang ◽  
Hongchao Zhang
Keyword(s):  
Laser Cladding ◽  
Alloy Coating ◽  
Crack Behavior

Microstructure and Grain Abrasion Properties of Cr3C2-NiCr Coating Prepared by Laser Cladding Method

2012 ◽  
Vol 271-272 ◽  
pp. 3-7
Author(s):  
Long Wei ◽  
Zong De Liu ◽  
Xin Zhi Li ◽  
Ming Ming Yuan ◽  
Cheng Yuan Zhong
Keyword(s):  
Wear Resistance ◽  
Wear Rate ◽  
Laser Cladding ◽  
Micro Hardness ◽  
High Quality ◽  
Wear Resistant ◽  
Hardness Tester ◽  
Technology Analysis ◽  
Main Component

Cr3C2-NiCr has high quality of wear resistant properties and is widely used in abrasive environment. In this paper, Cr3C2-NiCr coating was prepared on 45 steel by laser cladding technology. Analysis and research of the coatings were achieved by SEM and XRD to determine the main component and the different region on coatings. The hardness and the element component were investigated by micro-hardness tester and EDS. Abrasion tests were performed to contrast the wear resistance of two materials. The results indicate that the hardness of the coatings is nearly 3 times as the substrate. The coatings are well combined with the substrate and the phase of Cr3C2 has a large proportion in the coatings. Abrasion tests show that the average of wear rate on substrate is 5.2 times as the coatings.

TGO and Al diffusion behavior of CuAlxNiCrFe high-entropy alloys fabricated by high-speed laser cladding for TBC bond coats

2021 ◽  
pp. 109781
Author(s):  
Qing-Long Xu ◽  
Kang-Cheng Liu ◽  
Ke-Yan Wang ◽  
Li-Yan Lou ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Laser Cladding ◽  
High Speed ◽  
High Entropy Alloys ◽  
Diffusion Behavior ◽  
High Entropy ◽  
Bond Coats

Estimation of the Heat Stability of Hardened Cr-V Cast Irons

2016 ◽  
Vol 870 ◽  
pp. 558-563
Author(s):  
Yu.D. Koryagin ◽  
V.L. Il'ichev
Keyword(s):  
High Speed ◽  
Structural Changes ◽  
High Speed Steel ◽  
Heat Stability ◽  
Maximum Hardness ◽  
Cast Irons ◽  
Wear Resistant ◽  
Secondary Hardness ◽  
Double Tempering ◽  
Structure Properties

The paper describes the structure, properties and heat stability of white cast irons containing 2.5 – 3.0 %C, 14 and 20 %Cr, 3 %V after the secondary hardness treatment (quenching from 1150 °C and double tempering at 560 °C). It is shown that after the secondary hardness treatment M23C6 carbides appear along with the M7C3 phase. Heat stability of the alloys is estimated according to GOST 19265-73 standard. The effect of the temperature and duration of holding at 520–620 °C on structural changes and softening of secondary hardness treated cast irons is considered in comparison with high-speed steel and cast irons of the same composition quenched for the maximum hardness (from 1050 °C). The processes occurring at higher temperatures and long holdings that are responsible for softening of secondary hardness treated cast irons are studied. It is shown that the alloys under consideration after the secondary hardness treatment achieve the hardness of HRC 60 and more, and are able of pertaining it when heated up to 540 °C for 20 hours. This allows using these alloys as wear-resistant materials in the said temperature range.

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