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

✍ Scribed by Li Shizhuo; Jiang Xiaoxia; Bi Hongyun; Li Shu

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 900 KB
• Volume: 225-229
• Category: Article
• ISSN: 0043-1648
• DOI: 10.1016/s0043-1648(99)00079-4

✦ Synopsis

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 Ž .Ž 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 y impelling embrittlement tear of stainless steel, surface embrittlemental wear of copper alloys in sea water polluted by S 2y and NH and Ni-P electroless coating in alkaline solution have been described.