Local microstructure evolution and mechanical performance of friction stir additive manufactured 2195 Al-Li alloy

材料科学 微观结构 等轴晶 极限抗拉强度 合金 电子背散射衍射 复合材料 光学显微镜 透射电子显微镜 降水 扫描电子显微镜 冶金 纳米技术 物理 气象学
作者
Zhikang Shen,S. Chen,Lei Cui,D. Li,X. Liu,Wentao Hou,Huan Chen,Zhonggang Sun,Wenya Li
出处
期刊:Materials Characterization [Elsevier BV]
卷期号:186: 111818-111818 被引量:53
标识
DOI:10.1016/j.matchar.2022.111818
摘要

The present investigation is mainly focused on friction stir additive manufactured (FSAM) 2195 Al-Li alloy in aspects of localized microstructure evolution and mechanical performance. Characterization of the localized microstructure was conducted by optical microscope (OM), electron back scattered diffraction (EBSD) and transmission electron microscopy (TEM) techniques, and mechanical properties were evaluated based on micro-hardness and tensile testing measurements. Results showed a build of multilayered stack of 2195 aluminum lithium alloy was fabricated using FSAM via multi-pass processing. Defects such as voids or kissing bond were not identified, and fine equiaxed grains were observed in the nugget zone (NZ). The decrease of average grain size and low angle boundaries (LABs) along the depth of the NZ was attributed to repetitive stirring action of the rotating tool. Distribution of precipitation phase is mainly determined by the thermal cycle. Numerous T1 and θ′ precipitates were identified in the base material (BM), which are beneficial to improve material hardness and thus strength. These precipitates were dissolved in NZ and thermo-mechanically affected zone (TMAZ), and coarsen in heat affected zone (HAZ), which caused loss of hardness and strength. Similarly, precipitate morphology, size, and distribution are different in the built direction. Excellent tensile strength and elongation were identified in the NZ, which is attributed to fine grains and desirable precipitate characterization.
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
Younglee完成签到,获得积分10
4秒前
4秒前
xiaoxuan完成签到,获得积分10
5秒前
6秒前
Garnieta完成签到,获得积分10
7秒前
彤光赫显发布了新的文献求助10
8秒前
8秒前
浔城游侠完成签到,获得积分10
9秒前
9秒前
失眠的板栗完成签到,获得积分10
10秒前
蝶步韶华发布了新的文献求助10
12秒前
Jay发布了新的文献求助10
12秒前
jbhb发布了新的文献求助10
14秒前
幸运星发布了新的文献求助10
17秒前
17秒前
17秒前
18秒前
20秒前
小王完成签到 ,获得积分10
23秒前
liuyunhao7207发布了新的文献求助10
23秒前
Nugget发布了新的文献求助10
23秒前
量子星尘发布了新的文献求助10
26秒前
蝶步韶华完成签到,获得积分10
26秒前
SciGPT应助wade采纳,获得10
28秒前
稳重水卉完成签到,获得积分10
31秒前
我是老大应助111采纳,获得10
32秒前
34秒前
情怀应助天真的高山采纳,获得10
35秒前
万能图书馆应助高木采纳,获得10
36秒前
积极以云完成签到,获得积分10
37秒前
37秒前
39秒前
CyrusSo524应助zzz采纳,获得10
40秒前
123完成签到,获得积分10
41秒前
兔子先生完成签到 ,获得积分10
42秒前
向日葵完成签到,获得积分10
44秒前
科研通AI5应助天天采纳,获得10
44秒前
彤光赫显完成签到,获得积分10
46秒前
long0809完成签到,获得积分10
49秒前
天天快乐应助段一帆采纳,获得10
51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 3989406
求助须知:如何正确求助?哪些是违规求助? 3531522
关于积分的说明 11254187
捐赠科研通 3270174
什么是DOI,文献DOI怎么找? 1804901
邀请新用户注册赠送积分活动 882105
科研通“疑难数据库(出版商)”最低求助积分说明 809174