IMR OpenIR
Variation of nanoparticle fraction and compositions in two-stage double peaks aging precipitation of Al-Zn-Mg alloy
Wang, YL; Song, YY; Jiang, HC; Li, ZM; Zhang, D; Rong, LJ; Rong, LJ (reprint author), Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China.
2018-04-27
发表期刊NANOSCALE RESEARCH LETTERS
ISSN1556-276X
卷号13页码:-
摘要Atom probe tomography (APT) coupling high-resolution transmission electron microscopy (HRTEM) was used to analyze the fraction and compositions of different nanoparticles in two-stage double peaks aging process of Al-Zn -Mg alloy. Al content is found to be closely related to the size of nanoparticles and it can be greater than similar to 50.0 at. % in the nanoparticle with the equivalent radius under similar to 3.0 nm. Correspondingly, Al content of the nanoparticle, with the equivalent radius over similar to 5.0 nm, is measured under similar to 40.0 at. %. Evolution from Guinier-Preston (G.P.) zone to. phase is a growing process where Mg and Zn atoms enter the nanoparticle, therefore rejecting Al atoms. G.P. zones can take up a number fraction of similar to 85.0 and similar to 22.7% of nanoparticles in the first and second peak-aged samples, respectively, and even in the over-aged (T73) sample, they can still be found. As aging time increases, fraction of eta' phases monotonically rises to the peak value (similar to 54.5%) in the second peak-aged state and then drops, which is significant for the second hardness peak and directly proves their function as the transitional medium. In T73 state, similar to 63.3% nanoparticles compose of. phases, which were measured to still contain similar to 10.2 to similar to 36.4 at. % Al atoms.; Atom probe tomography (APT) coupling high-resolution transmission electron microscopy (HRTEM) was used to analyze the fraction and compositions of different nanoparticles in two-stage double peaks aging process of Al-Zn -Mg alloy. Al content is found to be closely related to the size of nanoparticles and it can be greater than similar to 50.0 at. % in the nanoparticle with the equivalent radius under similar to 3.0 nm. Correspondingly, Al content of the nanoparticle, with the equivalent radius over similar to 5.0 nm, is measured under similar to 40.0 at. %. Evolution from Guinier-Preston (G.P.) zone to. phase is a growing process where Mg and Zn atoms enter the nanoparticle, therefore rejecting Al atoms. G.P. zones can take up a number fraction of similar to 85.0 and similar to 22.7% of nanoparticles in the first and second peak-aged samples, respectively, and even in the over-aged (T73) sample, they can still be found. As aging time increases, fraction of eta' phases monotonically rises to the peak value (similar to 54.5%) in the second peak-aged state and then drops, which is significant for the second hardness peak and directly proves their function as the transitional medium. In T73 state, similar to 63.3% nanoparticles compose of. phases, which were measured to still contain similar to 10.2 to similar to 36.4 at. % Al atoms.
部门归属[wang, y. l. ; song, y. y. ; jiang, h. c. ; li, z. m. ; zhang, d. ; rong, l. j.] chinese acad sci, inst met res, cas key lab nucl mat & safety assessment, shenyang 110016, peoples r china ; [wang, y. l. ; zhang, d.] univ sci & technol china, sch mat sci & engn, hefei 230026, peoples r china
关键词Atom-probe Analysis Aluminum-alloys Gp-zones Resistance Corrosion Rra
学科领域Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
资助者National Key R&D Program of China [2016YFB1200504]; Strategic Priority Program of the Chinese Academy of Sciences [XDB22000000]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79354
专题中国科学院金属研究所
通讯作者Jiang, HC; Rong, LJ (reprint author), Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Wang, YL,Song, YY,Jiang, HC,et al. Variation of nanoparticle fraction and compositions in two-stage double peaks aging precipitation of Al-Zn-Mg alloy[J]. NANOSCALE RESEARCH LETTERS,2018,13:-.
APA Wang, YL.,Song, YY.,Jiang, HC.,Li, ZM.,Zhang, D.,...&Rong, LJ .(2018).Variation of nanoparticle fraction and compositions in two-stage double peaks aging precipitation of Al-Zn-Mg alloy.NANOSCALE RESEARCH LETTERS,13,-.
MLA Wang, YL,et al."Variation of nanoparticle fraction and compositions in two-stage double peaks aging precipitation of Al-Zn-Mg alloy".NANOSCALE RESEARCH LETTERS 13(2018):-.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang, YL]的文章
[Song, YY]的文章
[Jiang, HC]的文章
百度学术
百度学术中相似的文章
[Wang, YL]的文章
[Song, YY]的文章
[Jiang, HC]的文章
必应学术
必应学术中相似的文章
[Wang, YL]的文章
[Song, YY]的文章
[Jiang, HC]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。