ISSN: 1546-962X
CODEN: JAIOAD
Published Online: 31 January 2005
Page Count: 8

Sliding Wear Characteristics of Materials in Artificial Seawater

Kawazoe, T
Professor, and Lecturer, Nagasaki University, Nagasaki,

Okumura, T
Professor, and Lecturer, Nagasaki University, Nagasaki,

Morohoshi, S
Chief Researcher, Nagasaki Research & Development Center, Mitsubishi Heavy Industries, Nagasaki,

Sada, H
Project Manager, KOBELCO EAGLE Marine Engineering, Shinhama, Arai-cho, Takasago-city, Hyogo,

(Received 1 September 2004; accepted 7 December 2004)

Abstract

The corrosive wear resistance and the damage behavior of metals used for sliding parts in seawater were investigated by changing normal load and sliding speed using a ball on disk tribometer. Sliding wear tests of Fe base and Cu base materials rubbed against Al₂O₃ were carried out in artificial seawater. The obtained results indicate that Cu base materials show higher corrosive wear resistance and lower coefficient of friction than Fe base materials. Especially, bronze casting alloy shows an excellent corrosive wear resistance, while the corrosive wear of stainless steel is predominantly affected by normal load and sliding speed; that is, higher normal load and sliding speed result in stronger adhesion, leading to higher wear rate.

Keywords:
tribology, corrosive wear, sliding wear, tribocorrosion, friction, marine corrosion, seawater

Paper ID: JAI13051
DOI: 10.1520/JAI13051
ASTM International is a member of CrossRef.