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首页> 外文会议>International Conference on Composite Materials >Deformation-induced cementite decomposition in pearlitic steel wires studied by Atom probe tomography
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Deformation-induced cementite decomposition in pearlitic steel wires studied by Atom probe tomography

机译：由原子探测断层扫描研究的珠光体钢丝中变形诱导的渗碳分解

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摘要

Pearlitic steel is a composite material, consisting of ferrite and cementite, which can exhibit tensile strengths higher than 5 GPa upon severe plastic deformation such as cold-drawing. Heavily cold-drawn pearlitic wires are therefore known as one of strongest bulk nanostructured materials. Their field of application as engineering materials is broad, ranging from suspension bridge cables to tire reinforcement materials to piano wires. Although the superior mechanical properties of cold-drawn pearlitic wires are undisputed, the origin of their ultra-high strength is still a matter of debate. A convincing correlation between the strength and the microstructural evolution of this composite has not been found yet also due to a lack of information on the elemental distribution below nanometer-scale.
机译：珠光体钢是一种复合材料，由铁素体和渗碳石组成，其在严重的塑性变形如冷拉伸时可以表现出高于5GPa的拉伸强度。因此，沉重的珠光线被称为最强的散装纳米结构材料之一。它们作为工程材料的应用领域是宽泛的，从悬架桥电缆到轮胎加固材料到钢琴线。虽然冷绘珠子电线的优越性机械性能无可争议，但其超高强度的起源仍然是辩论问题。尚未发现该复合材料的强度与微观结构演化之间的令人信服的相关性，同时由于缺乏关于纳米级的元素分布的信息缺乏。

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