Enhancing strength, ductility, and fatigue performance of Al-Zn-Mg-Cu-Sc-Zr alloy using a hybrid approach: Wire-arc directed energy deposition and interlayer friction stir processing

材料科学 共晶体系 延展性(地球科学) 极限抗拉强度 搅拌摩擦加工 合金 冶金 晶界 多孔性 延伸率 复合材料 沉积(地质) 微观结构 蠕动 古生物学 生物 沉积物
作者
Xinpeng Guo,D.R. Ni,Huijun Li,P. Xue,Rongzheng Xu,Zengxi Pan,Siyu Zhou,Z.Y. Ma
出处
期刊:Journal of Materials Processing Technology [Elsevier BV]
卷期号:322: 118173-118173 被引量:3
标识
DOI:10.1016/j.jmatprotec.2023.118173
摘要

Porosity defects are the main issues faced by aluminum alloys manufactured by wire-arc directed energy deposition (WA-DED), which seriously affect the mechanical properties of WA-DED aluminum alloys, especially the fatigue properties. Thus far, there is still no effective solution for the elimination of porosity in high-strength WA-DED aluminium alloys. In this study, an innovative hybrid WA-DED + interlayer friction stir processing (FSP) method was applied to successfully fabricate thick-walled Al-Zn-Mg-Cu-Sc-Zr aluminum alloy component with enhanced strength-ductility and fatigue properties by utilizing a custom 7B55-Sc wire. The porosity defects caused by the WA-DED process were significantly reduced in the FSP effective zone, and the original continuous grain boundary eutectic structures were broken up and dispersed along the grain boundaries. The grains were also further refined with an average size of about 1.1 ± 0.2 μm in the stirring zone (SZ) and 1.6 ± 0.3 μm in the overlapping SZ. The nanoscale intragranular precipitates (IGPs) were mostly composed of both rod-like ηMg(Zn,Cu,Al)2 phases and secondary Al3(Sc, Zr) phases. The yield strength (YS), ultimate tensile strength (UTS) and uniform elongation (EL) in the horizontal and vertical directions were all substantially improved comparing with the WA-DED 7B55-Sc component, especially in the horizontal direction, reaching 387 ± 7 MPa, 511 ± 15 MPa and 14.6 ± 0.5%, respectively. The fatigue property after 1 × 107 cycles for the WA-DED + interlayer FSP 7B55-Sc sample was significantly increased by 81%, reaching 170 MPa in vertical direction compared to 100 MPa of the WA-DED 7B55-Sc component.
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
PDF的下载单位、IP信息已删除 (2025-6-4)

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
ay发布了新的文献求助20
3秒前
古德猫宁发布了新的文献求助10
3秒前
典雅的芷蕾完成签到,获得积分10
3秒前
5秒前
hg08发布了新的文献求助10
5秒前
5秒前
搁浅完成签到,获得积分10
5秒前
8秒前
377完成签到,获得积分10
8秒前
Kyt发布了新的文献求助10
9秒前
万能图书馆应助Cl1audia采纳,获得10
9秒前
snutcc完成签到,获得积分10
10秒前
漂亮白枫发布了新的文献求助10
10秒前
古德猫宁完成签到,获得积分10
12秒前
7iy完成签到,获得积分10
14秒前
llllhh完成签到,获得积分10
15秒前
善学以致用应助漂亮白枫采纳,获得10
16秒前
17秒前
悟空完成签到,获得积分10
17秒前
Rita发布了新的文献求助10
17秒前
希望天下0贩的0应助Ran采纳,获得10
18秒前
18秒前
完美世界应助呜呜啦啦采纳,获得10
19秒前
Cl1audia完成签到,获得积分10
20秒前
所所应助Fine采纳,获得10
21秒前
CC发布了新的文献求助10
21秒前
眼睛大的傲菡完成签到,获得积分10
23秒前
23秒前
小二郎应助科研通管家采纳,获得10
23秒前
深情安青应助科研通管家采纳,获得10
23秒前
丘比特应助科研通管家采纳,获得10
23秒前
Jasper应助科研通管家采纳,获得10
23秒前
李爱国应助科研通管家采纳,获得30
23秒前
科目三应助科研通管家采纳,获得10
23秒前
23秒前
深情安青应助科研通管家采纳,获得10
23秒前
充电宝应助科研通管家采纳,获得10
24秒前
24秒前
CipherSage应助juphen2采纳,获得10
25秒前
彭于晏应助青黛采纳,获得10
25秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 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 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989797
求助须知:如何正确求助?哪些是违规求助? 3531910
关于积分的说明 11255394
捐赠科研通 3270563
什么是DOI,文献DOI怎么找? 1805008
邀请新用户注册赠送积分活动 882157
科研通“疑难数据库(出版商)”最低求助积分说明 809190