摘要
The mechanical properties of aluminum alloy treated by plasma microarc oxidation (PMAO) were researched. The tensile tests were carried out at room temperature, 100, 200 and 300℃, respectively. Then the fractographs of tensile specimens and surface morphology of ceramic coating were studied by using SEM, at the same time, the nano-hardness and elastic modulus of the ceramic coating were determined using Nano Indenter XP system. The results show that the surface hardness of aluminum alloy increases greatly and the fracture strength of aluminum alloy coated by ceramic coating is not reduced at high temperature.
The mechanical properties of aluminum alloy treated by plasma microarc oxidation (PMAO) were researched. The tensile tests were carried out at room temperature, 100, 200 and 300℃, respectively. Then the fractographs of tensile specimens and surface morphology of ceramic coating were studied by using SEM, at the same time, the nano-hardness and elastic modulus of the ceramic coating were determined using Nano Indenter XP system. The results show that the surface hardness of aluminum alloy increases greatly and the fracture strength of aluminum alloy coated by ceramic coating is not reduced at high temperature.
出处
《中国有色金属学会会刊：英文版》
CSCD
2005年第S3期407-410,共4页
Transactions of Nonferrous Metals Society of China
基金
Project(2002AA763020)supportedbytheHiTechResearchandDevelopmentProgramofChina
