Microstructure and Properties of Al-6.0Mg-0.3Sc Alloy Deposited by Double-Wire Arc Additive Manufacturing

合金 材料科学 极限抗拉强度 微观结构 多孔性 延伸率 弧(几何) 冶金 相(物质) 降水 复合材料 化学 几何学 物理 气象学 有机化学 数学
作者
Lingling Ren,Huimin Gu,Wei Wang,Shuai Wang,Chengde Li,Zhenbiao Wang,Zhai Yu-chun,Peihua Ma
出处
期刊:3D printing and additive manufacturing [Mary Ann Liebert]
卷期号:9 (4): 301-310 被引量:14
标识
DOI:10.1089/3dp.2020.0039
摘要

Al-6.0Mg-0.3Sc alloy deposits are prepared by means of a double-wire arc additive manufacturing process. The formation, porosity, metallographic structure, type of precipitated phase, and mechanical properties of the deposit are studied. Double-wire arc forming affords precision advantages over single-wire-arc forming, which is evidenced by the increased surface uniformity of the deposit. Compared with the deposit of single-wire-arc formed, the deposit of double-wire arc formed exhibits only fewer and smaller pores, and the lower process heat yields rapid solidification and tiny precipitate sizes. A larger amount of Mg and Mn is observed to be dissolved in the Al matrix of double-wire arc-formed deposit, which increases the alloy strength, and smaller primary Al3Sc phase, which exhibits excellent grain refinement. Furthermore, the presence of a high amount of Sc solid solution in the matrix of double-wire arc-formed deposit strengthens the alloy, and the melting of the rear wire "heat-treats" the substrate formed by the front wire, promotes secondary Al3Sc phase precipitation, and further strengthens the alloy. Compared with the deposit of single-wire-arc formed, the mechanical properties of double-wire arc-formed deposit show an improvement: the tensile strength, yield strength, and elongation of the horizontally oriented specimens are estimated as 363 MPa, 258 MPa, and 26%, respectively. This successful implementation of the cold metal transfer + pulse process to prepare Al-Mg alloy parts can pave the way to their industrial production. The proposed method can find wide utility in the fields of aviation, aerospace, military, and shipbuilding.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
华仔应助开朗尔冬采纳,获得10
刚刚
刚刚
amengptsd完成签到,获得积分10
刚刚
LeuinPonsgi完成签到,获得积分10
2秒前
3秒前
Ler完成签到,获得积分10
4秒前
4秒前
5秒前
zhu完成签到,获得积分10
6秒前
6秒前
LC发布了新的文献求助10
9秒前
9秒前
OO发布了新的文献求助30
10秒前
慕青应助夕风残照采纳,获得10
11秒前
研友_VZG7GZ应助文子采纳,获得10
12秒前
叁零完成签到,获得积分10
15秒前
小白完成签到,获得积分10
15秒前
18秒前
leyellows完成签到,获得积分10
20秒前
欣喜宛亦发布了新的文献求助10
22秒前
善学以致用应助文子采纳,获得10
25秒前
yhx完成签到,获得积分10
26秒前
称心鸵鸟完成签到,获得积分10
27秒前
迷人的爆米花应助yuko采纳,获得10
29秒前
30秒前
大力的飞莲完成签到,获得积分10
33秒前
34秒前
远了个方发布了新的文献求助30
34秒前
懵懂完成签到,获得积分10
36秒前
英俊的铭应助一站到底采纳,获得10
37秒前
协和_子鱼完成签到,获得积分0
39秒前
阿鑫完成签到 ,获得积分10
40秒前
aduo发布了新的文献求助10
40秒前
41秒前
怕孤单的如风完成签到 ,获得积分10
41秒前
43秒前
吉不二完成签到,获得积分10
45秒前
47秒前
cjj完成签到,获得积分10
48秒前
50秒前
高分求助中
Sustainability in Tides Chemistry 2000
The ACS Guide to Scholarly Communication 2000
Studien zur Ideengeschichte der Gesetzgebung 1000
TM 5-855-1(Fundamentals of protective design for conventional weapons) 1000
Threaded Harmony: A Sustainable Approach to Fashion 810
Pharmacogenomics: Applications to Patient Care, Third Edition 800
Ожившие листья и блуждающие цветы. Практическое руководство по содержанию богомолов [Alive leaves and wandering flowers. A practical guide for keeping praying mantises] 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3079159
求助须知:如何正确求助?哪些是违规求助? 2731733
关于积分的说明 7520409
捐赠科研通 2380586
什么是DOI,文献DOI怎么找? 1262296
科研通“疑难数据库(出版商)”最低求助积分说明 611848
版权声明 597396