Wantang FU
,
Yi XIONG
,
Jun ZHAO
,
Yong LI
,
T.Furuhara
,
T.Maki
材料科学技术（英文）
The microstructural evolution of pearlite during severe cold rolling in Fe-0.8C binary alloy and Fe-1Mn-0.8C ternary alloys was investigated by using SEM, TEM and XRD etc. The results show that the deformed pearlite consists of irregularly bent lamella, coarse lamella with shear-band and fine lamella. As the rolling reduction increases, the proportion of fine lamella increases. The strong plastic deformation, amorphization and dissolution of cementite take place during the severe cold rolling. The maximum carbon content in ferrite reaches 0.15 mass% after 90% cold rolling.
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Pearlite
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Wantang FU
材料科学技术（英文）
The characteristics of microstructure changes during cavitation erosion (CE) were investigated by the use of XRD and TEM analyses for steel (ZG0Cr13Mn8N) with metastable austenite. The results show that the microstructure of the surface layer of the specimens consists of alpha'-martensite, metastable austenite and a few g-martensite before CE. CE obviously increases dislocation density and straight or planar dislocations on the surface, and induces gamma --> epsilon, epsilon --> alpha' and gamma --> alpha'-martensitic transformation.
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