Four-dimensional observation of ductile fracture in sintered iron using synchrotron X-ray laminography
Four-dimensional observation of ductile fracture in sintered iron using synchrotron X-ray laminography
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使用同步加速器X射线断层扫描对烧结铁的韧性断裂进行四维观察
DOI:
10.1080/00325899.2019.1585032
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
M. Uesugi & K. Ashizuka
中科院分区:
文献类型:
--
作者:
Y. Ozaki;Y. Mugita;M. Aramaki;O. Furukimi;S. Oue;F. Jiang;T. Tsuji;A. Takeuchi;M. Uesugi & K. Ashizuka
Synchrotron X-ray laminography was used to examine the time-dependent evolution of the three-dimensional (3D) morphology of micropores in sintered iron during the tensile test. 3D snapshots showed that the networked open pores grow wider than 20 µm along the tensile direction, resulting in the internal necking of the specimen. Subsequently, these pores initiated the cracks perpendicular to the tensile direction by coalescing with the surrounding pre-existing microvoids or with the secondary-generated voids immediately before fracture. Topological analysis of the barycentric positions of these microvoids showed that they form the two-dimensional networks within the ∼20 µm of radius area. These observations strongly indicate that the microvoid coalescence could occur on shear planes formed close to the enlarged open pores or between closed pores by strain accumulation and play an important role in the crack initiation.
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影响因子:
1.4
作者:
J. M. Torralba;L. Esteban;E. Bernardo;Mónica Campos
通讯作者:
Mónica Campos
DOI:
--
发表时间:
2006
期刊:
Philosophical Magazine 86-28
影响因子:
--
作者:
M. Kobayashi;H. Toda;K. Uesugi;T. Ohgaki;T. Kobayashi;Y. Takayama
通讯作者:
Y. Takayama
DOI:
--
发表时间:
2006
期刊:
Philosophical Magazine A (印刷中)
影响因子:
--
作者:
T.Ohgaki;H.Toda;M.Kobayashi;K.Uesugi;M.Niinomi;T.Akahori;T.Kobayashi;K.Makii;Y.Aruga
通讯作者:
Y.Aruga
DOI:
10.2464/jilm.56.454
发表时间:
2006
期刊:
Journal of Japan Institute of Light Metals
影响因子:
--
作者:
清水 健一;三谷 智明;立花 繁明;幅崎 浩樹
通讯作者:
幅崎 浩樹
DOI:
--
发表时间:
2002
期刊:
Practical Metallography
影响因子:
--
作者:
E. Maire;J. Buffière;P. Cloetens;W. Ludwig;G. Peix;U. Zesch
通讯作者:
U. Zesch