Distribution of residual stresses on the surface of steels hardened with a continuous CO2-laser

1987 ◽  
Vol 29 (9) ◽  
pp. 691-694 ◽  
Author(s):  
A. G. Grigor'yants ◽  
A. N. Safonov ◽  
V. S. Maiorov ◽  
A. F. Baskov ◽  
G. P. Ivashov
Keyword(s):  
Residual Stresses ◽  
Co2 Laser ◽  
Continuous Co2 Laser

Effect of Gamma-Ray Pre-Irradiation on the Ablation of Polyethylene and Ethylene-Propylene Copolymer Under Continuous CO2 Laser Radiation

2017 ◽  
Vol 38 (4) ◽  
pp. 369-374 ◽  
Author(s):  
S. R. Allayarov ◽  
E. M. Tolstopyatov ◽  
D. A. Dixon ◽  
L. A. Kalinin ◽  
P. N. Grakovich ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Co2 Laser ◽  
Gamma Ray ◽  
Ethylene Propylene ◽  
Continuous Co2 Laser ◽  
Co2 Laser Radiation

Experimental Study on Monitoring of Heat Input in Continuous CO2 Laser Butt Welding of Dissimilar Thin Steels

2020 ◽  
Vol 7 (4) ◽  
pp. 399-425 ◽  
Author(s):  
Pardeep Pankaj ◽  
Lakshmi Narayan Dhara ◽  
Avinish Tiwari ◽  
Pankaj Biswas
Keyword(s):  
Experimental Study ◽  
Co2 Laser ◽  
Heat Input ◽  
Butt Welding ◽  
Continuous Co2 Laser

Experimental Study on Residual Stresses of Al2O3 Coating by Laser Re-Melting

2010 ◽  
Vol 431-432 ◽  
pp. 446-449
Author(s):  
De Jun Kong ◽  
Kai Yu Luo ◽  
Hong Miao
Keyword(s):  
Residual Stress ◽  
Experimental Study ◽  
Tensile Stress ◽  
Residual Stresses ◽  
High Power ◽  
Bonding Strength ◽  
Strengthening Mechanism ◽  
Al2o3 Coating ◽  
Micro Hardness ◽  
Continuous Co2 Laser

The surface of Al2O3 coating sprayed on 40Cr substrate was re-melted with high power continuous CO2 laser, and its micro-hardness and residual stresses were measured, respectively. The strengthening mechanism of Al2O3 coating by laser re-melting was analyzed and discussed. The experimental results shown that the surface of Al2O3 coating by laser re-melting is neat and smooth, and its compositions are even, its structures are compact, and Al2O3 coating is evenly distributed in its surface with grain forms, and its micro-hardness increases about 200%; Residual stress of Al2O3 coating by laser re-melting is changed into compressive stress from tensile stress, which is benefit to improving bonding strength of coating-substrate interface.

Effect of Preliminary Heating of a Polymeric Polytetrafluoroethylene Target on its Ablation by a Continuous CO2 Laser

2015 ◽  
Vol 36 (5) ◽  
pp. 485-494 ◽  
Author(s):  
E. M. Tolstopyatov ◽  
P. N. Grakovich ◽  
L. F. Ivanov ◽  
S. R. Allayarov ◽  
Yu. A. Olkhov ◽  
...  
Keyword(s):  
Co2 Laser ◽  
Preliminary Heating ◽  
Continuous Co2 Laser

Structure of steel 40kh10S2M after treating the surface by a continuous CO2-laser

1996 ◽  
Vol 38 (12) ◽  
pp. 508-511
Author(s):  
A. N. Safonov ◽  
S. I. Aleksenko
Keyword(s):  
Co2 Laser ◽  
Continuous Co2 Laser

Ethylene-Oxygen Reactions Induced by Exposures to a Continuous CO2 Laser

1974 ◽  
Vol 7 (8) ◽  
pp. 395-404 ◽  
Author(s):  
J. W. Robinson ◽  
P. J. Moses ◽  
P. M. Boyd
Keyword(s):  
Co2 Laser ◽  
Continuous Co2 Laser

Study on the Properties of the Laser Cladded Cobalt-Based Alloy Coating on T10 Tool Steel

2011 ◽  
Vol 464 ◽  
pp. 686-689
Author(s):  
Cheng Yun Cui ◽  
Xi Gui Cui ◽  
Yong Kong Zhang ◽  
Qian Zhao ◽  
Jin Zhong Lu
Keyword(s):  
Corrosion Resistance ◽  
Tool Steel ◽  
Co2 Laser ◽  
Steel Substrate ◽  
Cryogenic Treatment ◽  
Alloy Coating ◽  
Reinforced Composite ◽  
Maximum Value ◽  
Obvious Change ◽  
Continuous Co2 Laser

Co-based alloy coating was cladded on T10 tool steel by the powder feeding and continuous CO2 laser. The results showed that compared to the unreinforced T10 tool steel substrate, the microhardness of the Co-based reinforced composite was significantly enhanced and the maximum value was existed in the middle of the cladding coating. The corrosion resistance of the cladding coating was also improved. After cryogenic treatment, there is no obvious change for the structure of the cladding coating while the phase is transformed, leading to an increase in the microhardness of the cladding coating.

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