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Research Article

Effect of Solution Treatment on the Cavitation Erosion Behavior of Mn-N Duplex Stainless Steel Coating

, , , , &
Pages 936-942 | Received 09 Nov 2020, Accepted 02 Jul 2021, Published online: 12 Aug 2021
 

Abstract

In the present work, Mn-N duplex stainless steels (DSS) were deposited on a SUS304 steel plate by plasma arc surfacing welding. The effect of solution treatment and the ratio of ferrite to austenite on the cavitation erosion (CE) behavior of Mn-N DSS coating were investigated. The results showed that depositing Mn-N DSS on other material surfaces through the weld overlay can solve the CE problems. It was found that the CE resistance of the sample treated at 1080 °C was higher than that of samples treated at higher temperatures. The excellent resistance to CE was related to the low ratio of ferrite to austenite that was adjusted by the solution treatment. During the CE process of Mn-N DSS coating, the mechanical factor was the dominating factor.

Additional information

Funding

This research was supported by the National Natural Science Foundation of China under Grant 51879089 and the Fundamental Research Funds for the Central Universities under Grant B200204036. Please review and confirm that funding information appears complete and correct.

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