Improvement in the Oxidation Resistance of 1Cr18Ni9Ti by a Micro-crystalline MA956 ODS Alloy Coating

PANG Hongmei; QI Huibin; HE Yedong; WANG Deren

doi:10.13374/j.issn1001-053x.2001.03.046

Volume 23 Issue 3

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Article Navigation > Chinese Journal of Engineering > 2001 > 23(3): 265-270

PANG Hongmei, QI Huibin, HE Yedong, WANG Deren. Improvement in the Oxidation Resistance of 1Cr18Ni9Ti by a Micro-crystalline MA956 ODS Alloy Coating[J]. Chinese Journal of Engineering, 2001, 23(3): 265-270. doi: 10.13374/j.issn1001-053x.2001.03.046

Citation:

PANG Hongmei, QI Huibin, HE Yedong, WANG Deren. Improvement in the Oxidation Resistance of 1Cr18Ni9Ti by a Micro-crystalline MA956 ODS Alloy Coating[J]. Chinese Journal of Engineering, 2001, 23(3): 265-270. doi: 10.13374/j.issn1001-053x.2001.03.046

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Improvement in the Oxidation Resistance of 1Cr18Ni9Ti by a Micro-crystalline MA956 ODS Alloy Coating

doi: 10.13374/j.issn1001-053x.2001.03.046

Corrosion and Protection Center, UST Beijing, Beijing 100083, China

Received Date: 2001-01-16

Abstract

Abstract

A micro-crystalline MA956 ODS alloy coating of about 50mm thick was developed on the 1Cr18Ni9Ti stainless steel by means of a high-frequency electro-spark deposition technique. The coating has a very fine grain size of about 100 nm and excellent metallurgical bonding with the substrate. Isothermal oxidation in air at 1000℃ for 100 h shows that the micro-crystalline MA956 ODS alloy coating on 1Cr18Ni9Ti promoted the selective oxidation of Cr and also improved the scale spallation resistance dramatically, thus increased the oxidation resistance of 1Cr18Ni9Ti greatly.
- high-frequency electro-spark deposition,
- micro-crystalline ODS alloy coating,
- 1Cr18Ni9Ti,
- oxidation