Journal ArticleDOI
Numerical investigation of room-temperature deformation behavior of a duplex type γTiAl alloy using a multi-scale modeling approach
TLDR
In this paper, the deformation mechanisms of the considered phases were described in the micro-mechanical crystal-plasticity model, which enabled a quantitative prediction of relationships between microstructure and mechanical behavior on global and local scale, including an assessment of possible crack initiation sites.About:
This article is published in Acta Materialia.The article was published on 2010-10-01. It has received 44 citations till now. The article focuses on the topics: Deformation (meteorology) & Deformation mechanism.read more
Citations
More filters
Journal ArticleDOI
Generation of 3D representative volume elements for heterogeneous materials: a review
Swantje Bargmann,Benjamin Klusemann,Benjamin Klusemann,Jürgen Markmann,Jürgen Markmann,Jan Eike Schnabel,Konrad Schneider,Celal Soyarslan,Jana Wilmers +8 more
TL;DR: In this paper, the authors present a systematic classification of representative volume element (RVE) generation techniques for heterogeneous materials, and divide heterogeneous solids into porous and non-porous media.
Journal ArticleDOI
Effects of Fe, Co and Ni elements on the ductility of TiAl alloy
TL;DR: In this paper, the average fracture strain of TiAl alloy increases from 17.3% to 19.1% and 18.0%, respectively, with the addition of 3 at.% Fe and Co atoms.
Journal ArticleDOI
Crystal plasticity analysis of deformation anisotropy of lamellar TiAl alloy: 3D microstructure-based modelling and in-situ micro-compression
Liu Chen,Thomas Edward James Edwards,Fabio Di Gioacchino,William Clegg,Fionn P.E. Dunne,Minh-Son Pham +5 more
TL;DR: In this paper, microstructure characterisation and in-situ micropillar compression were coupled with crystal plasticity-based finite element modeling (CP-FEM) to study the micro-mechanisms of plastic anisotropy in lamellar TiAl alloys.
Journal ArticleDOI
Microstructure and mechanical properties of in situ TiAl/Ti2AlC composites prepared by reactive hot pressing
TL;DR: The phase transformation at different temperature was characterized by XRD, and the microstructures were measured by SEM equipped with EDS as discussed by the authors, and the results showed that Ti reacted with Al to form TiAl intermetallics below 900°C; and above 900 °C, TiAl reacted with TiC to produce dense composites.
Journal ArticleDOI
Phase transitions and compression properties of Ti2AlC/TiAl composites fabricated by combustion synthesis reaction
TL;DR: In this paper, the phase transitions in the TiAl and the Ti-Al-C/TiAl systems are investigated by the differential thermal analysis (DTA) and X-ray diffraction (XRD).
References
More filters
Journal ArticleDOI
Overview no. 42 Texture development and strain hardening in rate dependent polycrystals
R.J. Asaro,Alan Needleman +1 more
TL;DR: In this article, a rate dependent constitutive model is developed for polycrystals subjected to arbitrarily large strains, and the model is used to predict deformation textures and large-strain strain hardening behavior following various stressstrain histories for single phase f.c. aggregates that deform by crystallographic slip.
Journal ArticleDOI
Gamma titanium aluminides
TL;DR: The first International Symposium on Gamma Titanium Aluminides (ISGTA) was held in conjunction with the TMS '95 Annual Meeting, 13-16 February 1995, Las Vegas, under the sponsorship of the Structural Materials Division--Titanium Committee as discussed by the authors, which covered almost the entire aspects of the current gamma technology such as fundamentals, alloy development and design, process development, microstructure and property evaluation, and applications.
Journal ArticleDOI
Microstructure and deformation of two-phase γ-titanium aluminides
TL;DR: In this paper, the current knowledge on dislocation types and slip systems, the development of deformation substructures, factors controlling the mobility and multiplication of dislocations, interface related plasticity, solid solution and precipitate strengthening mechanisms as well as microscopic aspects of creep and fracture are addressed.