Mechanical Properties of Metal Coating Layers after Laser Heat

The goal of this research is to study the influence of the laser heat treatment on wearing resistance of metal coating layers. Results reveal the influence of microstructures and chemical composition of used electrodes on microhardness and wear resistance of metal coating layers. Laser heat treatment was applied after coating. Evaluation of results was made by observing the microstructures with metallographic microscopy, SEM/EDX and the mechanical properties were obtained by microhardness and wear resistance.

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Research about Relation between the Microstructures and Mechanical Properties of Metal Coating Layers

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.216.169 ◽

2014 ◽

Vol 216 ◽

pp. 169-174

Author(s):

Arthur Olàh ◽

Mircea Horia Tierean

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Wear Resistance ◽

Chemical Composition ◽

Metal Coating ◽

Laser Heat Treatment ◽

Laser Heat ◽

Coating Layers ◽

Microstructures And Mechanical Properties

The paper presents the research about the correlation between the microstructures and mechanical properties of metal coating layers after laser heat treatment. The research was made with eight types of electrodes for welding coating. Laser heat treatment was applied after coating. Evaluation of results was made by observing the microstructures with metallographic microscopy, SEM/EDX and the mechanical properties were obtained by microhardness and wear resistance. The goal of this research is to study the influence of the laser heat treatment on wearing resistance of metal coating layers. Results reveal the influence of microstructures and chemical composition of used electrodes on microhardness and wear resistance of metal coating layers.

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Formability of Ultrafine-Grained AA6016 Sheets Processed by Accumulative Roll Bonding

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.504-506.575 ◽

2012 ◽

Vol 504-506 ◽

pp. 575-580 ◽

Cited By ~ 3

Author(s):

Tina Hausöl ◽

Christian W. Schmidt ◽

Verena Maier ◽

Wolfgang Böhm ◽

Hung Nguyen ◽

...

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Laser Heat Treatment ◽

Bending Tests ◽

Roll Bonding ◽

Laser Heat ◽

Heat Treated ◽

Ultrafine Grained ◽

Ultrafine Grained Microstructure ◽

Bending Behaviour

Aluminium alloy AA6016 was accumulative roll bonded up to eight cycles in order to produce an ultrafine-grained microstructure. The formability of these sheets was investigated by means of bending tests. Furthermore the influence of a local laser heat treatment at the bending edge is observed. The strength of the UFG samples is increased by a factor of around two compared to the conventionally grained T4 condition which also results in up to 50 % higher punch forces needed for bending of ARB processed samples. An anisotropic bending behaviour is observed. By applying a tailored laser heat treatment along the bending edge prior to the bending tests a local recrystallization and recovery at the deformation zone of the samples is achieved. Thus, ductility is increased locally whereby bending to an angle of 80° is possible with lower forming forces compared to the non-heat treated specimens. The results are compared to previous studies on mechanical properties and formability investigations of ARB processed AA6016.

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Microstructure related enhancement in wear resistance of tool steel AISI D2 by applying laser heat treatment followed by ultrasonic impact treatment

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2017.08.045 ◽

2017 ◽

Vol 328 ◽

pp. 344-354 ◽

Cited By ~ 24

Author(s):

D.A. Lesyk ◽

S. Martinez ◽

B.N. Mordyuk ◽

V.V. Dzhemelinskyi ◽

А. Lamikiz ◽

...

Keyword(s):

Heat Treatment ◽

Wear Resistance ◽

Tool Steel ◽

Laser Heat Treatment ◽

Ultrasonic Impact Treatment ◽

Laser Heat ◽

Aisi D2 ◽

Steel Aisi

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Effects of laser heat treatment on mechanical properties of ceramic coated steels Part 1 – Laser irradiation conditions and mechanical properties of ceramic coated steels

Materials Research Innovations ◽

10.1179/1432891713z.000000000356 ◽

2014 ◽

Vol 18 (sup1) ◽

pp. S1-12-S1-16

Author(s):

H. Tanabe ◽

K. Ogawa ◽

Y. Izumi ◽

T. Saraie ◽

M. Gotoh ◽

...

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Laser Irradiation ◽

Laser Heat Treatment ◽

Laser Heat

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Effect of laser heat treatment on the mechanical properties and the fracture of case-hardened steel

Metal Science and Heat Treatment ◽

10.1007/bf00774849 ◽

1991 ◽

Vol 33 (8) ◽

pp. 625-630

Author(s):

V. M. Goritskii ◽

D. P. Khromov ◽

K. B. Botvinnikova ◽

V. S. Avanesov ◽

B. A. Averbukh ◽

...

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Hardened Steel ◽

Laser Heat Treatment ◽

Laser Heat

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Improvement of Surface Properties of Inconel718 by HVOF Coating with WC-Metal Powder and by Laser Heat Treatment of the Coating

Advances in Materials Science and Engineering ◽

10.1155/2015/468120 ◽

2015 ◽

Vol 2015 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

Hui Gon Chun ◽

Tong Yul Cho ◽

Jae Hong Yoon ◽

Gun Hwan Lee

Keyword(s):

Heat Treatment ◽

Wear Resistance ◽

Corrosion Resistance ◽

Metal Powder ◽

Surface Properties ◽

Porous Coating ◽

Wear Depth ◽

Laser Heat Treatment ◽

Hvof Coating ◽

Laser Heat

High-velocity oxygen-fuel (HVOF) thermal spray coating with WC-metal powder was carried out by using optimal coating process on an Inconel718 surface for improvement of the surface properties, friction, wear, and corrosion resistance. Binder metals such as Cr and Ni were completely melted and WC was decomposed partially to W2C and graphite during the high temperature (up to 3500°C) thermal spraying. The melted metals were bonded with WC and other carbides and were formed as WC-metal coating. The graphite and excessively sprayed oxygen formed carbon oxide gases, and these gases formed porous coating by evolution of the gases. The surface properties were improved by HVOF coating and were improved further by CO2laser heat treatment (LH). Wear resistance of In718 surface was improved by coating and LH at 25°C and an elevated temperature of 450°C, resulting in reduction of wear trace traces, and was further improved by LH of the coating in reducing wear depth. Corrosion resistance due to coating in sea water was improved by LH. HVOF coating of WC-metal powder on a metal surface and a LH of the coating were highly recommended for the improvement of In718 surface properties, the friction behavior, and wear resistance.

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