| M2高速钢中相组态的背散射穆斯堡尔法研究 |
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| 引用本文： | 张恒华 马如璋. M2高速钢中相组态的背散射穆斯堡尔法研究[J]. 应用科学学报, 1992, 10(3): 252-258 |
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| 作者姓名： | 张恒华 马如璋 |
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| 作者单位： | 上海科学技术大学(张恒华)，北京科学技术大学(马如璋，苏世漳)，上海钢铁研究所(金慧娟，常汝勤)，上海钢铁研究所(许桂琴) |
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| 摘 要： | 用背散射X光穆斯堡尔法研究了M2高速钢中相的组态结构,从实验上得到:(1)M2高速钢中最近邻两层上各配位合金元素对铁磁有效场的影响可以近似认为相等,相应其马氏体相可简化为只有四种不同环境的铁位,即铁原子最近邻两层上无配位合金元素和有1,2,3个配位合金元素等四种;(2)M2高速钢的残留奥氏体相中的碳原子处于八面体间隙位置,并且在高温淬火过程中,间隙碳原子会发生向残留奥氏体相中偏聚的现象.
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| 关 键 词： | X光 穆斯堡尔法 高速钢 相组态 |
THE STUDY OF PHASE CONFIGURATION OF M2 HIGH SPEED STEEL BY BACKSCATTERING MOSSBAUER EFFECT |
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| ZHANG HENGHUA. THE STUDY OF PHASE CONFIGURATION OF M2 HIGH SPEED STEEL BY BACKSCATTERING MOSSBAUER EFFECT[J]. Journal of Applied Sciences, 1992, 10(3): 252-258 |
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| Authors: | ZHANG HENGHUA |
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| Affiliation: | ZHANG HENGHUA(Shanghai University of Science and Technology)MA KUZHANG Su SHIZHANG(Beijing University of Science and Technology)JIN HUIJIAN CHANG EUQIN Xu GUIQIN(Shanghai Iron and Steel Research Institute) |
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| Abstract: | The phase configuration of M2 high speed steel was studied by the Mossbauer effect in backscattering X-ray geometry. It was shown that the effect of substitutive alloy atoms in the near shell in the high speed steel on the effective ferromagnetic field can approximately be considered to be identical. So there are only four kinds of iron surroundirgs in mertensjte based on the alcove results, i.e., there are four kinds of iron surroungings corresponding to 0,1,2 and 3 substitutive alloy atoms in the nearest two shells respectively. The carbon atom in the retained austenite of Ml high speed steel is located at ,the octahedral site and w ill segregate to the retained austenite phase during high temperature quenching. |
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| Keywords: | Mossbauer effect in backscattering X-ray geometry high speed Steel phase configuration. |
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