Journal ArticleDOI
Lattice and phase strain evolution during tensile loading of an intermetallic, multi-phase γ-TiAl based alloy
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TLDR
In this article, in situ high-energy X-ray diffraction measurements were conducted on a recent β-stabilised TNM sheet to study the loadbearing mechanisms and their sequential order upon tensile loading for the first time on the level of individual lattice planes and phases.About:
This article is published in Acta Materialia.The article was published on 2018-10-01. It has received 35 citations till now. The article focuses on the topics: Deformation (engineering) & Plasticity.read more
Citations
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Journal ArticleDOI
An overview of tailoring strain delocalization for strength-ductility synergy
Hao Wu,Guohua Fan +1 more
TL;DR: In this paper, the authors proposed the strategy of tailoring strain delocalization to evade long-standing strength-ductility trade-off dilemma, where the achieving of strengthductility synergy depends on the delocalizing of localized strains.
Journal ArticleDOI
New insights into high-temperature deformation and phase transformation mechanisms of lamellar structures in high Nb-containing TiAl alloys
Lin Song,Lin Song,Fritz Appel,Li Wang,Li Wang,Michael Oehring,Xingguo Hu,Andreas Stark,Junyang He,Uwe Lorenz,Tiebang Zhang,Junpin Lin,Florian Pyczak +12 more
TL;DR: Song et al. as discussed by the authors described the microstructure evolution by high-temperature compression of a high Nb-containing TiAl alloy and focused on phase transformations that in this multiphase alloy can be associated with deformation.
Journal ArticleDOI
Evading the strength-ductility trade-off at room temperature and achieving ultrahigh plasticity at 800℃ in a TiAl alloy
TL;DR: In this paper , two new microstructures, named triple-phase triple-state (T-T) and triple phase dual-state structures, were developed using a two-step heat treatment process in the Ti-43.5Al-4Nb-1Mo-0.1B (TNM) alloy, which also contains the pearlitic-like microstructure (PM) transformed through triggering a massive cellular response (CR).
Journal ArticleDOI
Evolution of microscopic strains, stresses, and dislocation density during in-situ tensile loading of additively manufactured AlSi10Mg alloy
TL;DR: In this paper, a multistage strain hardening behavior is detected in the Al matrix, which is associated with the interactions between the dislocations and the cell boundary network.
Journal ArticleDOI
An Advanced TiAl Alloy for High-Performance Racing Applications.
Michael Burtscher,Thomas Klein,Janny Lindemann,Oliver Lehmann,Holger Fellmann,Volker Güther,Helmut Clemens,Svea Mayer +7 more
TL;DR: The results of this study show that the mechanical performance of extruded TiAl material can be tailored via optimizing the degree of hot-extrusion, resulting in an increasing strength and fatigue limit and a significant increment of ductility.
References
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Journal ArticleDOI
Two-dimensional detector software: From real detector to idealised image or two-theta scan
TL;DR: Calibration methods and software have been developed for single crystal diffraction experiments, using both approaches for calibrate, and apply corrections, to obtain accurate angle and intensity information.
Journal ArticleDOI
Design, Processing, Microstructure, Properties, and Applications of Advanced Intermetallic TiAl Alloys†
Helmut Clemens,Svea Mayer +1 more
TL;DR: In this article, a general survey of engineering γ-TiAl based alloys is given, but concentrates on β-solidifying alloys which show excellent hot-workability and balanced mechanical properties when subjected to adapted heat treatments.
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.
BookDOI
Gamma titanium aluminide alloys : science and technology
TL;DR: In this paper, the Binary Ti-Al Phase Diagram is used to study the behavior of single-phase and two-phase alloys with a modulated microstructure.
Journal ArticleDOI
Self-consistent modelling of the plastic deformation of F.C.C. polycrystals and its implications for diffraction measurements of internal stresses
TL;DR: In this article, the development of elastic lattice strains during uniaxial loading for selected families of grains with specific orientations was modeled using a self consistent scheme, and the results were evaluated by neutron diffraction.
Related Papers (5)
Design, Processing, Microstructure, Properties, and Applications of Advanced Intermetallic TiAl Alloys†
Helmut Clemens,Svea Mayer +1 more