Acta Metallurgica Sinica (English Letters) ›› 1993, Vol. 6 ›› Issue (7): 52-56.

• Research paper • Previous Articles     Next Articles

LASER GLAZING OF Ni-Nb AND Ni-Nb-Cr ALLOYS AND CORROSION RESISTANCE OF AMORPHOUS LAYERS

YAN Yuhe YANG Yongqiang ZHAO Changming Tianjin Institute of Textile Science and Technology,Tianjin,ChinaWU Weitao WANG Maocai Institute of Corrosion and Protection of Metals,Academia Sinica,Shenyang,ChinaLU Mengfu Tianjin Institute of Science and Technology,Tianjin,China Lecturer,Laser Processing Lab.,Tianjin Institute of Textile Science and Technology,Tianjin 300160,China   

  • Received:1993-07-11 Revised:1993-07-11 Online:1993-07-11 Published:2009-10-10

Abstract: Partially amorphous Ni-Nb alloy was made by 1.91 kW cw CO_2 laser melt-quenching, and fully amorphous by 4.5 kW and 4.9 kW.The corrosion resistance of the amor- phous layer was improved by adding Cr.Potentiodynamic polarization curves show that the amorphous Ni_(50)Nb_(40)Cr_(10) is in more corrosion-resistant than the amorphous Ni_(60)Nb_(40)and 18-8 stainless steel.

Key words: Ni-Nb allay, laser glazing, corrosion resistance