In this work, twin wire arc additive manufacturing (T-WAAM) combined with in-situ alloying method was developed to fabricate multi-element alloys, and biomedical Ti-6Al-7Nb alloy with a good combination of strength and ductility was successfully fabricated for the first time. The modification of microstructure and the improvement of mechanical properties of the deposited Ti-6Al-7Nb alloy caused by Nb addition were investigated. Although demonstrated here for Ti-6Al-7Nb alloy, the combined method of T-WAAM and in-situ alloying is in principle applicable to fabricate other multi-element alloys by composition design, which is conductive to expanding the application fields of WAAM.

IMPACT STATEMENT

Twin wire arc additive manufacturing combined with in-situ alloying was developed to fabricate multi-element alloys, and biomedical Ti-6Al-7Nb alloy with a good combination of strength and ductility was first fabricated.

在这项工作中，开发了双丝电弧增材制造（T-WAAM）与原位合金化方法相结合以制造多元素合金，并成功地制造了强度和延展性很好的生物医学Ti-6Al-7Nb合金。第一次。研究了由于添加铌引起的Ti-6Al-7Nb合金的微观结构改变和力学性能的改善。尽管此处已针对Ti-6Al-7Nb合金进行了演示，但T-WAAM与原位合金化的组合方法原则上适用于通过成分设计来制造其他多元素合金，这有利于扩展WAAM的应用领域。

影响陈述

发展了双线电弧增材制造与原位合金相结合的技术，以制造多元素合金，并首先制造了强度和延展性很好的生物医学Ti-6Al-7Nb合金。