In-situ observation on the deformation behaviors of Fe-Mn-C TWIP steel

The microstructure and crack behaviour of twinning induced plasticity （TWIP） steel during tensile deformation was investigated with in-situ scanning electron microscopy （SEM）. The results show that there are two modes of plastic deformation during tensile test in the Fe-Mn-C TWIP steel： dislocation...

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Veröffentlicht in:	International journal of minerals, metallurgy and materials metallurgy and materials, 2009-12, Vol.16 (6), p.646-649
Hauptverfasser:	Mi, Zhen-li, Tang, Di, Dai, Yong-juan, Jiang, Hai-tao, Lü, Jian-chong
Format:	Artikel
Sprache:	eng
Schlagworte:	Deformation Dislocations in-situ observation Inclusions Metallurgy microstructure Plastic deformation Scanning electron microscopy Steels Tensile deformation twinning induced plasticity TWIP steel 原位观察变形行为扫描电子显微镜拉伸试验
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Beschreibung
Zusammenfassung:	The microstructure and crack behaviour of twinning induced plasticity （TWIP） steel during tensile deformation was investigated with in-situ scanning electron microscopy （SEM）. The results show that there are two modes of plastic deformation during tensile test in the Fe-Mn-C TWIP steel： dislocation gliding and deformation twins. During the process of tensile deformation, secondary deformed twins are found. Inclusions have played a role in the course of ductile fracture, and microcracks initiate from inclusions and twin-twin intersections.
ISSN:	1674-4799 1869-103X
DOI:	10.1016/S1674-4799(10)60006-4