Microstructural Evolution of Pearlite in Eutectoid Fe-C Alloys during Severe Cold Rolling

材料科学技术（英文）, 2005, 21(1): 25-27.

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1.Key Lab. of Metastable Mater. Sci. & Tech., Yanshan University, Qinhuangdao 066004, China;Dept. of Mater. Sci. and Eng., Kyoto University, Kyoto 606-8501, Japan

2.Key Lab. of Metastable Mater. Sci. & Tech., Yanshan University, Qinhuangdao 066004, China

3.Key Lab. of Metastable Mater. Sci. & Tech., Yanshan University, Qinhuangdao 066004, China

4.Key Lab. of Metastable Mater. Sci. & Tech., Yanshan University, Qinhuangdao 066004, China

5.Dept. of Mater. Sci. and Eng., Kyoto University, Kyoto 606-8501, Japan

6.Dept. of Mater. Sci. and Eng., Kyoto University, Kyoto 606-8501, Japan

基金项目: The financial support of the Iron and Alloy Institute of Japan is gratefully acknowledged One of the authors (Wantang Fu) appreciates the support from the National Natural Science Foundation of China(50271061)

Microstructural Evolution of Pearlite in Eutectoid Fe-C Alloys during Severe Cold Rolling

Keywords： Pearlite

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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Microstructural Evolution of Pearlite in Eutectoid Fe-C Alloys during Severe Cold Rolling

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