HREM and HAADF studies of precipitates in the Mg-Y-Nd alloy system - 文章详情页

作者：

Sun, Wei (Sun, Wei.) (学者：孙威) | Sun, Li (Sun, Li.) | Liu, Lin-Lin (Liu, Lin-Lin.) | Zhang, Ze (Zhang, Ze.)

收录：

EI Scopus

摘要：

By　means　of　high　resolution　transmission　electron　microscopy　(HREM)　and　high-angle　annular　dark-field　image　technique　(HAADF),　morphological,　structural　and　compositional　characteristics　of　the　precipitates　in　the　Mg-4Y-3Nd　alloy　aged　at　200°C　for　different　periods　of　time　have　been　studied.　On　the　basis　of　HREM　observations,　an　atomic　structural　model　for　the　β＇-precipitate　with　an　orthorhombic　unit　cell　has　been　proposed.　The　characteristic　distribution　of　the　precipitates　which　are　rich　in　rare-earth　elements　(Y,　Nd)　has　been　clearly　revealed　by　the　HAADF　imaging　technique.

关键词：

Magnesium alloys Crystal atomic structure High resolution transmission electron microscopy Precipitates Rare earth elements

作者机构：

[ 1 ] [Sun, Wei]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, 100 Ping-le Yuan, Chao Yang District, Beijing 100022, China
[ 2 ] [Sun, Li]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, 100 Ping-le Yuan, Chao Yang District, Beijing 100022, China
[ 3 ] [Liu, Lin-Lin]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, 100 Ping-le Yuan, Chao Yang District, Beijing 100022, China
[ 4 ] [Zhang, Ze]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, 100 Ping-le Yuan, Chao Yang District, Beijing 100022, China

通讯作者信息：

电子邮件地址：

weisun@bjut.edu.cn

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