文章信息/Info

Title:

Research Progress on Engineering Application of Ti-6Al-4V Alloy Fabricated by Selective Electron Beam Melting Process

文章編號(hào):

1674-3962(2020)07-0551-07

作者:

湯慧萍

（西北有色金屬研究院 金屬多孔材料國家重點(diǎn)實(shí)驗(yàn)室，陜西 西安 710016）

Author(s):

Tang Huiping

(State Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China)

關(guān)鍵詞:

電子束選區(qū)熔化; 成形能力; Ti-6Al-4V; 組織與性能

Keywords:

selective electron beam melting;  formability;  Ti-6Al-4V;  microstructure and properties

分類號(hào):

TG146.23

DOI:

10.7502/j.issn.1674-3962.202006031

文獻(xiàn)標(biāo)志碼:

A

摘要:

電子束選區(qū)熔化（selective electron beam melting,SEBM）是20世紀(jì)90年代初期發(fā)展起來的一類金屬3D打印工藝，具有能量利用率高、成形效率高和成形應(yīng)力低的突出優(yōu)點(diǎn)，并且是在真空環(huán)境中成形，特別適用于高熔點(diǎn)、高活性、脆性金屬材料復(fù)雜構(gòu)件的高質(zhì)量制造。由于其是一種粉末床熔融型3D打印工藝，通常也稱之為粉末床電子束3D打印技術(shù)。從粉末床電子束3D打印的粉末原料、組織與性能、復(fù)雜構(gòu)件的成形能力和工程應(yīng)用等方面，介紹了作者團(tuán)隊(duì)10多年來在粉末床電子束3D打印稀有金屬材料方面的工作積累，重點(diǎn)介紹了粉末床電子束3D打印Ti-6Al-4V合金的研究進(jìn)展，最后結(jié)合3D打印技術(shù)整體發(fā)展趨勢對(duì)粉末床電子束3D打印技術(shù)的發(fā)展前景和重點(diǎn)發(fā)展方向進(jìn)行了展望。

Abstract:

Selective electron beam melting (SEBM) is an additive manufacturing technology developed from early 1990s, which has the outstanding advantages of high energy utilization, high build efficiency, low residual stress and vacuum protection. It is suitable for the fabrication of complex components with high melting point, high activity and brittle metal materials. As a kind of powder-bed 3D printing technology, SEBM is also commonly referred as powder-bed electron beam 3D printing technology. In this paper, from the following aspects of SEBM technology, including raw materials, microstructure and mechanical properties, formability and engineering application of complicated components, the work of author’s team on SEBM-ed rare metal materials over 10 years was reviewed. Especially, the research progress on SEBM-ed Ti-6Al-4V alloy was introduced on emphasis. Finally, based on the overall development tendency of 3D printing technology, the future prospects and development direction of SEBM technology were forecasted.