| 共析钢中片层状渗碳体冷轧后的形态变化 |
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| 引用本文： | 王莉,郝士明,HAO Shi-ming. 共析钢中片层状渗碳体冷轧后的形态变化[J]. 材料与冶金学报, 2005, 4(2): 155-158 |
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| 作者姓名： | 王莉 郝士明 HAO Shi-ming |
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| 作者单位： | [1]SchoolofMaterialsandMetallurgy,NortheasternUniversity,Shenyang,110004,China [2]DepartmentofProductionSystemsEngineering,ToyohashiUniversityofTechnology,Toyohashi,Aichi441-8580,Japan |
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| 摘 要： | The pearlitic transformation and the deformation behavior of lamellar cementite after cold rolling in eutectoid steels Fe-0. 76%C-0. 137%Mn (mass fraction) were studied by means of Formastor-F (Full Automatic Transformation Testing Instrument) and field emission scanning electronic microscopy (FESEM) observation. Fine and coarse pearlite were obtained in the eutectoid steels austenitized at 900℃ for 15min, then hold at 620℃ for 90 s and 690℃ for 7 h, respectively. Thedeformation behavior of cold rolled lamellar cementite could be classified as: cleavage fracture, inhomogeneous slip, fragmentation, thinning or necking, and homogeneous bending. The cementite lamellae with the thickness of more than 100 um could be deformed plastically.
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| 关 键 词： | eutectoid steels cementite cold rolling thinning or necking homogeneous bending 共析钢 渗碳体 冷轧 形态变化 cold rolling eutectoid steels cementite lamellar lamellae thickness homogeneous bending thinning necking fragmentation slip cleavage fracture behavior hold Fine |
Microstructural evolution of lamellar cementite in eutectoid steels by cold rolling |
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| WANG Li,UMEMOTO Minoru,HAO Shi-ming. Microstructural evolution of lamellar cementite in eutectoid steels by cold rolling[J]. Journal of Materials and Metallurgy, 2005, 4(2): 155-158 |
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| Authors: | WANG Li UMEMOTO Minoru HAO Shi-ming |
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| Abstract: | The pearlitic transformation and the deformation behavior of lamellar cementite after cold rolling in eutectoid steels Fe-0.76%C-0. 137%Mn (mass fraction) were studied by means of Formastor-F (Full Automatic Transformation Testing Instrument) and field emission scanning electronic microscopy (FESEM) observation. Fine and coarse pearlite were obtained in the eutectoid steels austenitized at 900 ℃ for 15min, then hold at 620 ℃ for 90 s and 690 ℃ for 7 h, respectively. Thedeformation behavior of cold rolled lamellar cementite could be classified as: cleavage fracture, inhomogeneous slip, fragmentation, thinning or necking, and homogeneous bending. The cementite lamellae with the thickness of more than 100 nm could be deformed plastically. |
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| Keywords: | eutectoid steels cementite cold rolling thinning or necking homogeneous bending |
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