Journal ArticleDOI
Crystallographic features of lath martensite in low-carbon steel
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In this article, electron backscattering diffraction with field-emission scanning electron microscopy was used to analyze crystallographically the lath martensite structure in a 0.20% carbon steel.About:
This article is published in Acta Materialia.The article was published on 2006-03-01. It has received 761 citations till now. The article focuses on the topics: Bainite & Martensite.read more
Citations
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Microstructure-sensitive computational modeling of fatigue crack formation
TL;DR: In this article, microstructure-sensitive fatigue modeling is proposed for Ni-base superalloys, gear steels, and α-β Ti alloys, with focus on the individual grain scale as the minimum length scale of heterogeneity.
Journal ArticleDOI
Heterostructured materials: superior properties from hetero-zone interaction
Yuntian Zhu,Kei Ameyama,Peter M. Anderson,Irene J. Beyerlein,Huajian Gao,Hyoung Seop Kim,Enrique J. Lavernia,Suveen N. Mathaudhu,Haël Mughrabi,Robert O. Ritchie,Nobuhiro Tsuji,Xiangyi Zhang,Xiaolei Wu +12 more
Abstract: Heterostructured materials are an emerging class of materials with superior performances that are unattainable by their conventional homogeneous counterparts. They consist of heterogeneous zones wi...
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Effect of microstructural refinement on the toughness of low carbon martensitic steel
TL;DR: In this paper, backscattered diffraction analysis of the cleavage crack path shows that the packet boundaries can strongly hinder fracture propagation, and thus martensitic packets can act as the effective microstructure unit for cleavage.
Journal ArticleDOI
Segregation engineering enables nanoscale martensite to austenite phase transformation at grain boundaries: A pathway to ductile martensite
Dierk Raabe,Stefanie Sandlöbes,J. Millán,Dirk Ponge,Hamid Assadi,Michael Herbig,Pyuck-Pa Choi +6 more
TL;DR: In this article, a phase field model was proposed to predict the kinetics of phase transformation at segregation decorated grain boundaries, showing that strong interface segregation of austenite stabilizing elements (here Mn) and the release of elastic stresses from the host martensite can generally promote phase transformation.
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A model for the microstructure behaviour and strength evolution in lath martensite
TL;DR: In this article, a new model describing the microstructure and strength of lath martensite is introduced, where the lattice distortion energy within a lath being equal to the strain energy of the dislocation density at the lath boundaries.
References
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Book
Recrystallization and Related Annealing Phenomena
F.J. Humphreys,M. Hatherly +1 more
TL;DR: In this paper, the authors discuss the extent to which we are able to formulate quantitative, physically-based models which can be applied to metal-forming processes, and the subjects treated in this book are all active research areas and form a major part of at least four regular international conference series.
Journal ArticleDOI
The structure of high-angle grain boundaries
TL;DR: In this paper, a superimposed dislocation network is proposed for the cubic system, which is a natural extension of previous dislocation models and models based on coincidence relationships, and explains many of the observed properties of grain boundaries.
Book
Steels, Microstructure and Properties
TL;DR: In this article, the authors studied the effects of alloying elements in iron-carbon alloys and the formation of martensite, bainite reaction and acicular ferrite reaction.
Journal ArticleDOI
The morphology and crystallography of lath martensite in Fe-C alloys
TL;DR: In this article, the morphology and crystallography of lath martensite in Fe-C alloys containing various carbon contents from 0.0026 to 0.61% were studied by analyzing electron back scattered diffraction patterns in scanning electron microscopy and Kikuchi diffraction pattern in transmission electron microscope.
Journal ArticleDOI
Orientation imaging: The emergence of a new microscopy
TL;DR: In this paper, a new microscopy called orientation imaging microscopy is described, which is based on precise measurements of local lattice orientation facilitated by backscattered Kikuchi diffraction.