Caution in building a Burgers circuit for studying secondary dislocations
Caution in building a Burgers circuit for studying secondary dislocations
复制标题
构建用于研究二次位错的伯格斯电路时的注意事项
DOI:
10.1016/j.jmst.2019.01.004
复制
发表时间:
2019-06
影响因子:
10.9
通讯作者:
Zhang Wen Zheng
中科院分区:
文献类型:
--
作者:
Xu Wen Sheng;Zhang Wen Zheng
As the Burgers vector of a secondary dislocation may not conform to the translation vectors in the periodic pattern in a high-resolution transmission electron microscope (HRTEM) image, a Burgers circuit directly constructed according to an HRTEM image may render a wrong Burgers vector. The HRTEM images of the habit plane (HP) of δ precipitate in an Inconel 718 alloy were re-examined by using different Burgers circuits, as an example. Evidence is found for predicted secondary dislocation associated with a down step. The Burgers vector of the dislocation is 1/6 [11 2¯] γ/1/3 [00 1¯] δ, determined with the Burgers circuit built on the reference of the displacement shift completely lattice (DSCL). It is consistent with both the calculated and the measured result of the major defects in the habit plane. Different Burgers vectors due to different Burgers circuits were explained quantitatively. The present study has a general implication for the determination of the Burgers vectors of secondary interfacial dislocations in other systems.
登录
查看更多内容
DOI:
10.1080/14786445108561310
发表时间:
1951-08
期刊:
Philosophical Magazine Series 1
影响因子:
--
作者:
F. Frank
通讯作者:
F. Frank
DOI:
10.1080/01418619908214271
发表时间:
1999-01-01
期刊:
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES
影响因子:
--
作者:
Howe, JM;Spanos, G
通讯作者:
Spanos, G
DOI:
--
发表时间:
1982-06
期刊:
--
影响因子:
--
作者:
W. Bollmann
通讯作者:
W. Bollmann
影响因子:
9.4
作者:
F. Ye;Wen-Zheng Zhang
通讯作者:
F. Ye;Wen-Zheng Zhang
影响因子:
8.4
作者:
Jouiad, M.;Marin, E.;Franchet, J. -M.
通讯作者:
Franchet, J. -M.