Effect of environmental embrittlement on wear resistance of alloys in corrosive wear

The wear resistance of alloys in corrosive medium always becomes worse, when the environmental variables, such as evolution of hydrogen from acidic media, certain content of chloride in acid solution and polluted sea water, etc., are sensitive to rupture of alloys. An unusual high removal rate of al...

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Bibliographic Details
Published in:Wear 1999-04, Vol.225, p.1025-1030
Main Authors: Shizhuo, Li, Xiaoxia, Jiang, Hongyun, Bi, Shu, Li
Format: Article
Language:English
Subjects:
Alloy
Corrosive wear
Wear resistance
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Summary:The wear resistance of alloys in corrosive medium always becomes worse, when the environmental variables, such as evolution of hydrogen from acidic media, certain content of chloride in acid solution and polluted sea water, etc., are sensitive to rupture of alloys. An unusual high removal rate of alloys could not be explained only in terms of chemical aggression. An energy criterion of surface embrittlement of alloys has been investigated by means of single pendulum scratch test. Specific consumed energy (SCE) (energy loss per groove volume during an impact scratching) is suggested for evaluating environmental embrittlement. Hydrogen-induced embrittlement wear of HSLA steel and Ti alloy, Cl − impelling embrittlement tear of stainless steel, surface embrittlemental wear of copper alloys in sea water polluted by S 2− and NH 3 and Ni–P electroless coating in alkaline solution have been described.
ISSN:0043-1648
1873-2577
DOI:10.1016/S0043-1648(99)00079-4