楼翰一
,
朱圣龙
,
王福会
腐蚀学报(英文)
本文研究了一种镍基高温合金K38G的微晶涂层上保护性氧化膜的修复性。结果表明,溅射微晶涂层上的氧化膜有优良的修复性,氧化膜剥落后,涂层仍具有优良的抗高温氧化性能。氧化膜局部小范围剥落后,表面仍能生成单一的Al_2O_3,氧化膜。氧化膜大面积剥落后,虽然生成由(Al、Cr)_2O_3与TiO_2组成的复合外氧化膜,但它具有优良的防护性和粘附性。
关键词:
微晶涂层
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oxidation
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superalloy
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healing of oxide scales
LIU Dacheng WANG Fuhui CAO Chunan LOU Hanyi Institute of Corrosion and Protection of Metals
,
Academia Sinica
,
Shenyang
,
China Wang Fuhui
,
Laboratory of Electrochemistry
,
Institute of Corrosion and Protection of Metals
,
Academia Sinica
,
Shenyang 110015
,
China
金属学报(英文版)
A series of single bcc,bcc plus fcc duplex and single fcc microcrystalline coatings of 1Cr18Ni9Ti stainless steel were prepared by using sputtering technique.The resistance against pitting corrosion was studied by measurements of pitting corrosion potentials and electrochemical noise during initiation of corrosion pits.The results show that the sputtered coatings with single bcc phase or single fcc structure are more resistant to pitting corrosion than those with bcc plus fcc duplex phase structure.
关键词:
1Cr18Ni9Ti stainless steel
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null
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