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首页> 外文期刊>Journal of nano research >Structural and Mechanical Properties of Nanostructured Fe-Mn-C Alloys Prepared by Mechanical Alloying
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Structural and Mechanical Properties of Nanostructured Fe-Mn-C Alloys Prepared by Mechanical Alloying

机译：机械合金化制备纳米结构Fe-Mn-C合金的结构和力学性能

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The object of our research is to combine the properties of Mangalloys and nanoscale advantages in order to enhance the performance and extend the range of applications in the field of work-hardening parts such as railroad components, armor, and modern auto components. We have produced a high-manganese austenitic steel nanomaterial containing more than 12 wt% Mn, which is the level of Mn in Hadfield steel. This study experimentally determined the process of phase transitions involved in Fe–13 wt% Mn–1.2 wt% C alloy during mechano-synthesis and after subsequent annealing. The milling time ranged from 0.5 to 24 h. The unique features of the nanocrystalline structure and the changes in microstructure as a function of milling time were investigated by X-ray diffraction analysis, differential scanning calorimetry, and scanning electron microscopy coupled with EDX. The grain sizes and microstrain of the milled powder were determined. A thorough study has been done on the sample where a new phase fcc (at 24h of MA) was formed.The object of our research is to combine the properties of Mangalloys and nanoscale advantages in order to enhance the performance and extend the range of applications in the field of work-hardening parts such as railroad components, armor, and modern auto components. We have produced a high-manganese austenitic steel nanomaterial containing more than 12 wt% Mn, which is the level of Mn in Hadfield steel. This study experimentally determined the process of phase transitions involved in Fe–13 wt% Mn–1.2 wt% C alloy during mechano-synthesis and after subsequent annealing. The milling time ranged from 0.5 to 24 h. The unique features of the nanocrystalline structure and the changes in microstructure as a function of milling time were investigated by X-ray diffraction analysis, differential scanning calorimetry, and scanning electron microscopy coupled with EDX. The grain sizes and microstrain of the milled powder were determined. A thorough study has been done on the sample where a new phase fcc (at 24h of MA) was formed.
机译：我们的研究目标是将Mangalloys的特性与纳米级优势相结合，以提高性能并扩展其在诸如铁路部件，装甲和现代汽车部件之类的加工硬化部件领域的应用范围。我们已经生产了一种高锰奥氏体钢纳米材料，其中含有超过12 wt％的Mn，这是哈德菲尔德钢中Mn的含量。这项研究通过实验确定了机械合成过程中以及随后的退火过程中，Fe-13wt％Mn-1.2wt％C合金所涉及的相变过程。研磨时间为0.5至24小时。通过X射线衍射分析，差示扫描量热法和结合EDX的扫描电子显微镜研究了纳米晶体结构的独特特征以及微结构随研磨时间的变化。确定了研磨粉末的晶粒尺寸和微应变。已经对形成新相fcc（MA的24h）的样品进行了深入研究。我们的研究目标是结合Mangalloys的特性和纳米级优势，以增强性能并扩展应用范围在诸如铁路零件，装甲和现代汽车零件之类的加工硬化零件领域。我们已经生产了一种高锰奥氏体钢纳米材料，其中含有超过12 wt％的Mn，这是哈德菲尔德钢中Mn的含量。这项研究通过实验确定了机械合成过程中以及随后的退火过程中，Fe-13wt％Mn-1.2wt％C合金涉及的相变过程。研磨时间为0.5至24小时。通过X射线衍射分析，差示扫描量热法和结合EDX的扫描电子显微镜研究了纳米晶体结构的独特特征以及微结构随研磨时间的变化。确定了研磨粉末的晶粒尺寸和微应变。已经对样品形成了一个新的阶段fcc（在MA的24h）进行了彻底的研究。

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