IMECH-IR  > 力学所知识产出(1956-2008)
Cow-eye microstructure evolution of laser pulse processed for ductile iron
Ba FH(巴发海); Gan CH(甘翠华); Yu G(虞钢)
Source PublicationProc. SPIE 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics
2002
Pages679-682
Conference NameConference on Optical Technology and Image Processing for Fluids and Solids Diagnostics
Conference DateSeptember 03, 2002
Conference PlaceBeijing, China
AbstractPulsed laser beam with lattice distribution was used to modify surface processing for ductile iron. The microstructures around the graphite were observed using OM, and Nanoindentation and micro-hardness of that measured from surface to inner of sample. The result shows that the graphite ball has an important effect on cow-eye microstructure evolution either in light molten area or in phase change hardened are. It is not true that assuming the material is uniform during laser rapid heating and fast cooling for the graphite ball as a dependant composition phase. The microstructures of cow-eye is made up of fine remnant austenite in light molten area, and consisted of martensite and bainite in laser modified are. The cow-eye microstructure has a transformation from martensite and bainite to pearlite with the distance increasing from surfce. At last, the microstructure evolution of cow-eye has been discussed.
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Indexed ByCPCI-S ; EI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47721
Collection力学所知识产出(1956-2008)
Recommended Citation
GB/T 7714
Ba FH,Gan CH,Yu G. Cow-eye microstructure evolution of laser pulse processed for ductile iron[C],2002:679-682.
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