Study of γ/γ′ interfacial width in a nickel-based superalloy by scanning transmission electron microscopy

被引：15
|
作者：
Ge, Binghui [1 ,2 ]
Luo, Yushi [3 ]
Li, Jiarong [3 ]
Zhu, Jing [1 ]
Tang, Dingzhong [3 ]
Gui, Zhonglou [3 ]
机构：
[1] Tsinghua Univ, Beijing Natl Ctr Electron Microscopy, Adv Mat Lab, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
[3] Inst Aeronaut Mat, Natl Key Lab Sci & Technol Adv High Temp Struct M, Beijing 100095, Peoples R China
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 2012年 / 92卷 / 10期
关键词：
interface; nickel-based superalloy; scanning transmission electron microscopy; LOCAL ELASTIC STRAINS; ATOM-PROBE TOMOGRAPHY; GAMMA-PHASE; DIFFRACTION; EVOLUTION; CRYSTALS;
D O I：
10.1080/09500839.2012.699686
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The gamma/gamma' interfaces are thought to play an important role in determining the mechanical properties in single-crystal nickel-based superalloys. In this article, interfacial width in DD6, one second-generation single-crystal superalloy containing 2 wt% Re, has been studied by means of scanning transmission electron microscopy. From an atomic resolution high angle annular dark field image, both compositional interfaces and order-disorder interfaces are studied, and it is first found that the interfacial width of chemical composition is same with that between the ordered and disordered phases.
引用
收藏
页码：541 / 546
页数：6
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