Laser Cladding: Fatigue Properties

2020 ◽  
pp. 161-184
Author(s):  
P. Cavaliere ◽  
A. Silvello
Keyword(s):  
Laser Cladding ◽  
Fatigue Properties

scholarly journals Optimization of Ni-Based WC/Co/Cr Composite Coatings Produced by Multilayer Laser Cladding

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Andrea Angelastro ◽  
Sabina L. Campanelli ◽  
Giuseppe Casalino ◽  
Antonio D. Ludovico
Keyword(s):  
Laser Cladding ◽  
Steel Substrate ◽  
Composite Coatings ◽  
Metallic Matrix ◽  
Optimization Procedure ◽  
High Hardness ◽  
Fatigue Properties ◽  
Metal Composite ◽  
Tungsten Carbides ◽  
Cobalt Chromium

As a surface coating technique, laser cladding (LC) has been developed for improving wear, corrosion, and fatigue properties of mechanical components. The main advantage of this process is the capability of introducing hard particles such as SiC, TiC, and WC as reinforcements in the metallic matrix such as Ni-based alloy, Co-based alloy, and Fe-based alloy to form ceramic-metal composite coatings, which have very high hardness and good wear resistance. In this paper, Ni-based alloy (Colmonoy 227-F) and Tungsten Carbides/Cobalt/Chromium (WC/Co/Cr) composite coatings were fabricated by the multilayer laser cladding technique (MLC). An optimization procedure was implemented to obtain the combination of process parameters that minimizes the porosity and produces good adhesion to a stainless steel substrate. The optimization procedure was worked out with a mathematical model that was supported by an experimental analysis, which studied the shape of the clad track generated by melting coaxially fed powders with a laser. Microstructural and microhardness analysis completed the set of test performed on the coatings.

Study on the Experiment Laser Cladding and Shock Processing TC4 Titanium Alloy

2012 ◽  
Vol 538-541 ◽  
pp. 1823-1827
Author(s):  
Cheng Wang ◽  
Lei Zhou ◽  
Zhi Lin Lai ◽  
Zhi Bin An ◽  
Liu Cheng Zhou
Keyword(s):  
Titanium Alloy ◽  
Laser Cladding ◽  
Fatigue Tests ◽  
Fatigue Properties ◽  
Surface Residual Stress ◽  
Treatment Technology ◽  
Laser Shock Processing ◽  
Tc4 Titanium Alloy ◽  
Before And After ◽  
Shock Processing

In order to study the application of laser cladding and laser shock processing (LSP) combinatorial treatment technology, the laser cladding samples of TC4 titanium alloy was shocked by pulse laser, then the surface residual stress, the fatigue life were compared with those without LSP in this paper. High cycle tension-compression fatigue tests were carried out in laser cladding titanium alloy before and after LSP treated. The results indicate that LSP treatment can improve the high cycle fatigue endurance limit of laser cladding titanium alloy effectively. The nano-crystal grained surface layer with residual compressive stress makes great contributions to the improvement in fatigue properties of titanium alloy.

Thermal Fatigue Properties of Laser Cladding Fe-Based Coating

2021 ◽  
Vol 58 (7) ◽  
pp. 0714003
Author(s):  
李洪玉 Li Hongyu ◽  
魏连峰 Wei Lianfeng ◽  
王泽明 Wang Zeming ◽  
陈辉 Chen Hui ◽  
郑娜 Zheng Na ◽  
...  
Keyword(s):  
Laser Cladding ◽  
Thermal Fatigue ◽  
Fatigue Properties

Evaluation of microstructure and fatigue properties in laser cladding repair of ultrahigh strength AerMet® 100 steel

2015 ◽  
Vol 27 (S2) ◽  
pp. S29202 ◽  
Author(s):  
Shi Da Sun ◽  
Martin Leary ◽  
Qianchu Liu ◽  
Milan Brandt
Keyword(s):  
Laser Cladding ◽  
Fatigue Properties ◽  
Ultrahigh Strength

Fatigue Properties Research of Titanium Alloy Repaired by Laser Cladding and Laser Shock Processing

2015 ◽  
Vol 42 (11) ◽  
pp. 1103008
Author(s):  
何卫锋 He Weifeng ◽  
张金 Zhang Jin ◽  
杨卓君 Yang Zhuojun ◽  
杨竹芳 Yang Zhufang ◽  
李玉琴 Li Yuqin ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Laser Cladding ◽  
Fatigue Properties ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing

Characterization of Metal Magnetic Memory of Thermal Damage Correlated with Initial Cumulative Fatigue Damage for Laser Cladding Remanufacturing Technology

2012 ◽  
Vol 525-526 ◽  
pp. 77-80
Author(s):  
C. Zeng ◽  
W. Tian ◽  
L. Hua
Keyword(s):  
Fatigue Life ◽  
Fatigue Test ◽  
Fatigue Damage ◽  
Laser Cladding ◽  
Thermal Damage ◽  
Fatigue Properties ◽  
Magnetic Memory ◽  
Metal Magnetic Memory ◽  
Cumulative Fatigue Damage ◽  
Laser Cladding Remanufacturing

Laser cladding act as a remanufacturing technology used more and more but the study of the fatigue properties of such products falls relatively behind. To work out the influence fatigue damage and thermal damage have on the fatigue life of laser cladding remanufactured products, this paper deals with the study of the characteristic of metal magnetic memory (MMM) signals of components experienced with fatigue test and a succeeding laser surface burning. The MMM signals was acquired for three times, that is before fatigue test, after fatigue and after laser treatment, respectively. Statistic investigation of the experiment result showed that the magnetic signal was closely related to the state of fatigue damage and thermal damage of the specimen. Based on such result, it is expected to quantify the study by statistical analysis of large samples so as to find a correlationship with the last fatigue life.

Effect of Texture and {10-12} Twin on the Low Cycle Fatigue Properties of Rolled AZ31 Mg Alloy

2013 ◽  
Vol 51 (5) ◽  
pp. 325-332 ◽  
Author(s):  
Sung Hyuk Park ◽  
Seong-Gu Hong ◽  
Chong Soo Lee ◽  
Ha Sik Kim
Keyword(s):  
Low Cycle Fatigue ◽  
Mg Alloy ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Az31 Mg Alloy
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