Microstructure and corrosion properties of the laser treated SUPERSTON alloy

• Autorzy: Serbiński W. , Majkowska B.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Results of laser treatment at cryogenic conditions and its influence on microstructure, microhardness and properties of the SUPERSTON alloy are presented in this article. Design/methodology/approach: New method of the laser remelting specimens diped in liquid nitrogen made by the CO 2 laser with 6000W laser beam power and scanning velocity 1.0 m/min was employed. Observation microstructure was carried out by scanning electron microscope. Hardness of cross-section of the surface layer has been measured by the Vickers microhardness under load 0.49 N. Corrosion investigation in 3% NaCl by the Atlas 9131 equipment conected with computer PC was done. Findings: Laser remelting lets obtain fine microstructure in surface layer and increase of microhardness and corrosion properties, compared with base material. Research limitations/implications: The future investigations connected with aplication conditions should be extend of cavitation tests in the magnetostriction stand. Practical implications: Obtained results point at possibility of the increase hardness, corrosion and cavitation resistance of the parts worked in marine conditions. Originality/value: The proposed laser treatment at cryogenic conditions could be used for surface consolidation of the copper alloys applied for ship propellers.

Słowa kluczowe

EN

surface treatment; laser remelting; copper alloys; corrosion

PL

obróbka powierzchni; przetapianie laserowe; stopy miedzi; korozja

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 18, nr 1-2
• Strony: 415--418
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Serbiński W.

• Department of Materials Science and Engineering, Gdansk University of Technology ul. Narutowicza 11/12, 80-952 Gdansk, Poland

autor

Majkowska B.

• Department of Materials Science and Engineering, Gdansk University of Technology ul. Narutowicza 11/12, 80-952 Gdansk, Poland

Bibliografia

• [1] W. Serbiński, B. Majkowska, I. Skalski, Stress corrosion cracking of regenerated ship propellers blades, Polish J. Materiaáy i Technologie, nr. 2(2) (2004) 141-144 (in Polish).
• [2] W. Serbiński, B. Majkowska, I. Skalski, Corrosion properties of the MM55 alloy laser melted at cryogenic conditions, Polish J. Materiaáy i Technologie, nr. 3 (3) (2005) 197-200 (in Polish).
• [3] W. Serbiński, B. Majkowska, I. Skalski, Microstructure and corrosion properties of the laser remelted of selected coppers alloy, Polish J. InĪynieria Materiaáowa nr 5, (2005) 379-380 (in Polish).
• [4] C.H. Tang, F. T. Cheng, H.C. Man, Improvement In cavitation erosion resistance of a copper-based propeller alloy by laser surface melting, Surface and Technology 182 (2004) 300-307.
• [5] C.H. Tang, F. T. Cheng, H.C. Man, Effect of surface melting on the corrosion and cavitation erosion behaviors of manganese-nickel-aluminium bronze, Materials Science and Engineering A 373 (2004) 195-203.
• [6] Sen Yang, Yunpeng Su, Weidong Huang, Yaohe Zhou, Microstructure characteristics of Cu-Mn alloys during laser serface remelting, Materials Science and Engineering A 386 (2004) 367-374.
• [7] Al-Hashem, W. Riad, The role of microstructure of nickel-aluminium-bronze alloy on its cavitation corrosion behawior in natural seawater, Materials Characterization 48 (2002) 37-41.
• [8] C.H. Tang, F.T. Cheng, H.C. Man, Laser surface alloying of marine propeller bronze using aluminum powder, Surface & Coating Technology 200 (2006) 2602-2609.
• [9] ASTM Standard G32-92, Standard Method of Vibratory Cavitation Erosion Test, ASTM Standards, Philadelphia 1995.
• [10] W. Serbiński, J.M. Olive, J.P. Frayret, D. Desjardins, Morphology and corrosion characteristics of laser surface remelted Al-Si alloy at cryogenic conditions, Materials and Corosion 53 (2002) 335-340.
• [11] W. Serbiński, The method and results of the laser surface treatment of aluminium alloys at cryogenic temperature, Polish J. InĪynieria Materiaáowa, nr 6, (119) (2000) 434-437 (in Polish).
• [12] W. Serbinski, J.M. Olive, T. Wierzchoń, J. Rudnicki, Study of the surface layers created on aluminium-silicon alloy by laser treatment under cryogenic conditions, 3rd International Conference on Surface Engineering, Chengdu, P. R. China (2002) 403-406.
• [13] W. Serbiński, A. Zieliński, T. Wierzchoń, Laser assisted forming of the surface layer of Al.-Si alloy at cryogenic conditions, Polish J. InĪynieria Materiaáowa, nr 3 (140) 656-658.
• [14] K. Krzysztofowicz, T. Krzysztofowicz, L. Nadolny, Materials used for marine propellers, Marine Technology transactions Vol. 11 ( 2000) 163-179.
• [15] B. Majkowska, W. Serbiński, I. Skalski, Corrosion characteristic of the copper alloys applied for ships propellers after laser treatment at cryogenic conditions, (in press) (in Polish).