Gas-phase supported rapid manufacturing of Ti-6Al-4V alloy spherical particles for 3D printing
Gas-phase supported rapid manufacturing of Ti-6Al-4V alloy spherical particles for 3D printing
复制标题
DOI：
10.1016/j.cej.2016.06.052
复制
发表时间：
2016-11
影响因子：
15.1
通讯作者：
H. Nersisyan;B. Yoo;Young-Min Kim;H. Son;Ki-yong Lee;Jong Hyeon Lee
中科院分区：
文献类型：
--
作者：
H. Nersisyan;B. Yoo;Young-Min Kim;H. Son;Ki-yong Lee;Jong Hyeon Lee
In this study, a combustion process for a TiO2+ 0.12Al + (2.5 + 6k)Mg + 0.021V2O5+kMgCl2·6H2O mixture was studied to fabricate Ti-6Al-4V alloy spherical particles. From the temperature-time profiles, the average value of the synthesis temperature was estimated to be 1650 ± 20 °C. Based on FESEM observations, spherical shape particles were obtained when 0.05–0.1 mol MgCl2·6H2O was added to the initial reaction mixture. Therefore, spherical alloy particles were achieved by consecutive processes of cooling and acid purification of the burned down sample. According to laser particle size analysis, the average diameter of the spheres was between 5 and 25 μm. A selective laser melting process was applied to build dense Ti-6Al-4V alloy samples. The tensile properties and the microhardness were evaluated and compared to those characteristics of a reference sample prepared from commercial Ti-6Al-4V alloy spherical powder.
