| 过冷对亚共晶Fe-C-Si合金凝固组织的影响 |
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| 引用本文： | 关绍康,董洪标,吕述祖. 过冷对亚共晶Fe-C-Si合金凝固组织的影响[J]. 材料科学与工艺, 1992, 0(Z1) |
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| 作者姓名： | 关绍康 董洪标 吕述祖 |
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| 作者单位： | 北京科技大学，北京科技大学，北京科技大学 |
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| 摘 要： | 利用玻璃包熔在悬浮熔炼装置上,通过多次热循环的方法,使处于真空条件下的亚共晶 Fe-C-Si 合金熔体获得深过冷。试验结果表明:随着循环次数的增加,过冷度增大,而凝固组织中的初生相二次臂间距(DAS)减小,r-Fe_3C 共晶形态由蜂窝状向板片状转变且片间距减小。
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| 关 键 词： | 过冷度 Fe-C-Si 合金 凝固组织 |
Effect of Undercooling on Solidified Structure of Hypo-Eutectic Fe-C-Si Alloy |
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| Guan Shaokang Dong Hongbiao Lu Shuzu. Effect of Undercooling on Solidified Structure of Hypo-Eutectic Fe-C-Si Alloy[J]. Materials Science and Technology, 1992, 0(Z1) |
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| Authors: | Guan Shaokang Dong Hongbiao Lu Shuzu |
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| Abstract: | By means of the technique of glass encasement on a levitation melting assembly,deep undeueooling of hypo-euteetic Fe-C-Si alloy were obtained in vacuum condition through several heatingi-cooling cycles.It was observed that with the increase of heating-cooling cycles,the undercooling effect increases,so that the DAS of the primary phase was reduced in solidified structure,thg -Fe C eutectic morphologies transforms from the ledeburite to the plate-like structure and the lamellar spacings were decreased with the increase of the undercooling. |
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| Keywords: | undercooling Fe-C-Si alloy solidified microstructure |
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