采用场发射扫描电镜和能谱仪对杂质含量高、硬度大的边皮海绵钛颗粒和普通海绵钛颗粒表面及内部杂质的分布进行了研究。研究发现，海绵钛中的杂质不仅具有钛坨中心部位杂质含量低周边杂质含量较高的宏观分布规律，而且具有杂质成团聚集在海绵钛颗粒表面的微观结构特征。采用化学溶解法可以显著降低海绵钛的杂质含量和布氏硬度。
The distribution of impurities in the inner and the outside of titanium sponge particles was studied with field emission scanning electron microscopy(FESEM) and energy dispersive spectrometer(EDS).The results show that not only impurities content in the central part of the whole titanium sponge is lower than that in the circular edged titanium sponge but also the impurities agglomerating on the surface of titanium sponge particles .The impurities agglomerating on the surface can be easily dissolved by dilute hydrochloric acid , which will make impurities content and Brinell hard-ness(HB)of the titanium sponge decreased obviously .
参考文献
| [1] | 李家荫,吴卫岩.镁热还原蒸馏联合法生产海绵钛--大型设备装备水平的改进[J].钛工业进展,2010(04):25-29. |
| [2] | 余代权.高品质海绵钛产业化技术在生产中的应用[J].钛工业进展,2010(02):31-36. |
| [3] | 邓国珠.钛冶金[M].北京:冶金工业出版社,2010:227-228. |
| [4] | 李鸿斌.海绵钛中杂质的分布及对产品质量的影响[J].轻金属,2005(11):51-52. |
| [5] | 刘方明,毛业桥.反应器渗钛与海绵钛中铁含量关系的研究[J].钛工业进展,2006(03):31-32. |
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