| 易切削钢中Ca-Al-O-Mn-S系氧硫化物变性的热力学计算 |
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| 引用本文： | 江来珠,崔昆.易切削钢中Ca-Al-O-Mn-S系氧硫化物变性的热力学计算[J].钢铁研究学报,1991,3(2):57-61. |
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| 作者姓名： | 江来珠 崔昆 |
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| 作者单位： | 华中理工大学
(江来珠)，华中理工大学(崔昆) |
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| 摘 要： | 本文对易切削钢中Ca-Al-O-Mn-S系氧硫化物变性进行了热力学计算。计算结果表明,硫含量愈高,氧硫化物变性所要求的Ca愈高而Al愈小。易切削钢中常见的是CA_6-(Mn,Ca)S和CA_2-(Mn,Ca)S。由于其较高的硫含量,液态CmA_n-(Mn,Ca)S不可能形成。实验结果同热力学计算相当吻合。
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| 关 键 词： | 易切削钢 氧硫化物 变性 |
THERMODYNAMICAL CALCULATION ABOUT THE MODIFICATION OF Ca-Al-O-Mn-S OXYSULFIDE IN FREE-CUTTING STEEL |
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| Jiang Laizhu,Cui Kun.THERMODYNAMICAL CALCULATION ABOUT THE MODIFICATION OF Ca-Al-O-Mn-S OXYSULFIDE IN FREE-CUTTING STEEL[J].Journal of Iron and Steel Research,1991,3(2):57-61. |
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| Authors: | Jiang Laizhu Cui Kun |
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| Affiliation: | Huazhong University of science and technology |
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| Abstract: | Thermodynamical calculation about the modification of Ca-Al-O-S-Mn oxysulfide in free-cutting steel has been made. The calculated result shows that the higher the S content, the higher the Ca content and the lower the Al content needed for the modification of oxysulfide. The common oxysulfides in free-cutting steel are CAS -(Mn,Ca)S and CA2-(Mn,Ca)S. Because of the higher S content in free-cutting steel, no liquid oxysutfide CmAn-(Mn,Ca)S exists. The experimental result conforms well to the thermo-dynamical calculation. |
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| Keywords: | free-cutting steel oxysulfide modification |
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