| Autor: |
Liang, YongFeng, Ye, Feng, Lin, JunPin, Wang, YanLi, Zhang, LaiQi, Chen, GuoLiang |
| Zdroj: |
SCIENCE CHINA Technological Sciences; Apr2010, Vol. 53 Issue 4, p1008-1011, 4p |
| Abstrakt: |
Fe-6.5wt%Si alloy has excellent soft magnetic properties, but it is hard to be cold-rolled due to appearance of ordered phases in this alloy. In this paper we report that ultra thin Fe-6.5wt%Si sheet of 0.05 mm thick was obtained by heavily cold rolling. By means of optical microscope, micro-hardness indenter, instron, SEM and X-ray diffraction, the effect of heat treatment on mechanical properties of this alloy sheet was investigated. The heavily cold-rolled sheet exhibits some extent of ductility. The ultimate tensile strength reaches 1.93 GPa. After heat treatment, micro-hardness is decreased and the ductility is lost, especially at temperature above 650°C when recrystallization takes place. The reason for decreasing the ductility lies in the ordered DO phase transformation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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