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首页> 外文期刊>Journal of Materials Processing Technology >An application of differential injection to fabricate functionally graded Ti-Nb alloys using DED-CLAD (R) process
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An application of differential injection to fabricate functionally graded Ti-Nb alloys using DED-CLAD (R) process

机译：差分注射用DED-CLAD（R）工艺制备功能梯度Ti-Nb合金的应用

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摘要

The aim of this paper is twofold: firstly, to compare the microstructural and the mechanical properties of Ti-44Nb samples manufactured pre-alloyed powder and differential injection, and secondly, to demonstrate the feasibility of the differential injection method included in the DED-CLAD (R) process, to manufacture functionally graded Ti-Nb alloys. Functionally graded materials (FGM) are promising new materials which are perfectly adapted to custom-made parts with various properties for specific applications. In FGMs, titanium and niobium ratios were modified in different steps to create the variation in alloy composition owing to a double-powder feeder. Mechanical analysis and SEM observations show the variation along the deposition depending on the chemical composition. Chemical analysis revealed the homogeneous repartition of the powder mixture as well as the nominal composition of each deposition. Mechanical tests showed a decrease of the microhardness with the increase of Nb content. The elastic modulus was found to be the lowest for Ti-40Nb.
机译：本文的目的是双重的：首先，比较Ti-44nb样品的微观结构和机械性能制造的预合金粉末和差分注射，其次是为了证明DED-CLAD中包括的差分注射方法的可行性（R）工艺，制造功能梯度的Ti-Nb合金。功能梯度材料（FGM）是有前途的新材料，其完全适应定制部件，具有特定应用的各种性能。在FGMS中，在不同步骤中修饰钛和铌比以产生由于双粉末进料器而产生合金组合物的变化。机械分析和SEM观察结果根据化学组成，沿沉积沿沉积的变化。化学分析揭示了粉末混合物的均匀重置，以及每种沉积的标称组成。机械试验显示微硬度随着Nb含量的增加而降低。弹性模量被发现是Ti-40nb的最低。

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