Journal of Applied Sciences ›› 1994, Vol. 12 ›› Issue (3): 209-217.

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SYNTHESIS OF AL AND AL-Y FILMS BY IBED TO IMPROVE THE OXIDATION-RESISTANCE OF 304 STAINLESS STEEL

LI HUALONG, HUANG YUANWEI, ZHANG YUNSRU, LIU XIANGHUAI   

  1. Shanghai Institute of Metallurgy, Academia Sinica
  • Received:1991-11-07 Revised:1992-06-19 Online:1994-09-30 Published:1994-09-30

Abstract: Al and Al-Y films were synthesized on the surface of 304 stainless steel by ion-beam-enhanced deposition (IBED).The isothermal oxidation behavior of the Al and Al-Y deposited 304 stainless steel was studied in air at 950℃and 1050℃,and their cylcling oxidation behavior was studied in air at 950℃.The experi-mental results indicated that the synthesized films enhanced remarkably the oxidation-resistance of the 304 stainless steel,and that the addition of Y improved further the eycling oxidation-resistance of the steel.SEM,AES,EPMA,and X-ray diffractions were employed tO characterize the oxidation products.On the basis of the results,the beneficial effects of Al,and in particular,of Y werebriefly discussed.

Key words: Al, oxidation, IBED, Y