研究了K38G铸造镍基高温合金及其用平面磁控离广溅射工艺制备的微晶涂层在800-1000℃500小时内的抗高温氧化性。结果表明,微晶化极大改善合金的抗氧化能力,并改变合金表面生成的氧化物类型,由Cr_2O_3变为α-Al_2O_3。还讨论了铸态K38G合金及溅射微晶层的氧化机理。
The resistance to high temperature oxidation of a cast superalloy K38G and its microcrystallized coating prepared by planar magnetron sputtering technique at 800-1000℃ up to 500h has been studied. The results indicate that the microcrystallization of the
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