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Effect of particle size and manufacturing technique on the properties of the PM Ti-5Fe alloy
International Journal of Refractory Metals & Hard Materials ( IF 3.6 ) Pub Date : 2020-03-13 , DOI: 10.1016/j.ijrmhm.2020.105246
Y. Alshammari , S. Raynova , F. Yang , L. Bolzoni

In this study the low-cost Ti-5Fe alloy was fabricated by means of the press and sinter powder metallurgy route considering two particle sizes and alternative processing techniques. The primary aim is to reduce the high costs associated with the production of Ti alloys. Thermomechanical processing by means of forging in the β region was also analysed aiming to enhance the mechanical behaviour. The effect of the processing conditions and of the particle size on the microstructure and the mechanical properties was thus investigated. It has been found that the use of larger Fe particles leads to the formation of larger pores due to the dissolution of the Fe powder particles. Consequently, lower mechanical behaviour, tensile properties and Vickers hardness, resulted due to the presence of larger pores. Refinement of the microstructure, texturing, and sealing of the porosity due to forging permits to enhance the mechanical properties with respect to the sintered Ti-5Fe alloy.



中文翻译:

粒度和制造工艺对PM Ti-5Fe合金性能的影响

在这项研究中,低成本的Ti-5Fe合金是通过压制和烧结粉末冶金的方法,同时考虑两种粒径和替代加工技术制成的。主要目的是减少与生产钛合金相关的高成本。为了增强机械性能,还分析了通过在β区锻造进行的热机械加工。因此研究了加工条件和粒度对微观结构和机械性能的影响。已经发现,由于Fe粉末颗粒的溶解,使用较大的Fe颗粒导致形成较大的孔。因此,由于存在较大的孔而导致较低的机械性能,拉伸性能和维氏硬度。细化微观结构,纹理化,

更新日期:2020-03-13
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