Boriding of mild steel using the spark plasma sintering (SPS) technique
Boriding of mild steel using the spark plasma sintering (SPS) technique
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DOI：
10.1016/s0257-8972(02)00134-2
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发表时间：
2002-08
影响因子：
5.4
通讯作者：
L. G. Yu.;K. Khor;G. Sundararajan
中科院分区：
文献类型：
--
作者：
L. G. Yu.;K. Khor;G. Sundararajan
采用放电等离子烧结（SPS）技术对低碳钢进行了渗硼处理。在这项研究中使用了一种包含碳化硅-碳化硼粉末包混合物的包渗硼方法。该过程在700-1000 °C的温度范围内进行30 min。扫描电子显微镜（SEM）和X射线衍射（XRD）揭示了铁硼化物层（FeB和Fe 2B）的微观结构和相组成。绘制InD与1/T的关系图简明地表示硼化物层的生长速率常数（D）与温度（T）的关系。lnD与1/T之间存在线性关系。讨论了SPS渗硼的动力学，研究了SPS对渗硼的影响。结果证实，SPS完成渗硼操作所需的活化能显著降低。
The spark plasma sintering (SPS) technique was employed to perform boriding of mild steel. A pack boriding method that contained a silicon carbide–boron carbide powder pack mixture was utilized in this study. The process was performed in the temperature range 700–1000 °C for 30 min. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) revealed the microstructure and phase composition of the iron boride layers (FeB and Fe2B). Plotting lnD vs. 1/T expresses concisely the boride layer's growth rate constant (D) vs. temperature (T) relation. A linear relationship between lnD and 1/T is confirmed. The kinetics of SPS boronization are discussed, and the effect of SPS on boronization is studied. The results confirmed that SPS required significantly lower activation energy for accomplishing the boriding operation.