Showing papers in "Scripta Materialia in 2000"

TL;DR: In this paper, the authors developed a basic understanding of the evolution of microstructure in the dynamically recrystallized region and to relate it to the deformation process variables of strain, strain rate, and temperature.

TL;DR: In this paper, the influence of grain size on the flow stress or corresponding hardness of nanocrystalline materials, with focus on the grain sizesoftening (i.e., the so-called negative or inverse Hall-Petch effect) was investigated.

TL;DR: In this article, a theoretical framework for instrumented sharp indentation and a general methodology that enables determination of the elasto-plastic properties of (and residual stresses in) materials through an analysis of the force-depth (P-h) relationship was presented.

TL;DR: In this article, the microstructure and compressive mechanical properties of the in-situ titanium matrix composites are examined using four reactive systems, namely Ti-B, Ti-TiB{sub 2}, Ti-Bi{sub 4}C and Ti-BN, and the objective of this work is to assess which system can produce in-Situ titanium composites with a higher mechanical strength.

TL;DR: In this paper, fracture and cyclic fatigue-crack growth behavior was made in a reactively hot-pressed monolithic Ti{sub 3}SiC{sub 2} ceramic with both fine (3--10 {mu}m) and coarse-grained (50--200 m) microstructures.

TL;DR: In this paper, a unit cell was constructed based on four B{sub 12} icosahedral units centered at (0, 0, 0), and the remaining B atoms lie outside the icosahedra, bonding to the B atoms and to the Al and Mg atoms.

TL;DR: In this article, the effect of microstructural features such as interlamellar spacing and colony size on the cementite dissolution during wire drawing, using Moessbauer spectroscopy, for fully pearlitic eutectoid steels.

TL;DR: In this article, a multicomponent extension to a multi-phase field model was proposed to simulate solidification and heat treatment of technical single crystal superalloys, which can be applied to any system if a thermodynamic database is available and is not restricted to a special formulation of the Gibbs energy.

TL;DR: In this article, the authors studied the high strain rate mechanical behavior of a range of metallic foams, and compared it with quasi-static behavior and, hence, determine any effect on energy absorbing capacity.

TL;DR: In this paper, the b-phase formation of aluminum alloys with Mg levels greater than 3.5% has been attributed to the formation of the b phase (Al.

TL;DR: In this paper, a thermographic infrared imaging system was used to detect the heat conditions of fatigued pressure vessel steels at 1,000 Hz and 20 Hz, respectively, using an advanced electrohydraulic machine.

TL;DR: In this article, the thermoelectric properties of the hot-pressed (Bi,Sb,Te,Se,sub 3) alloys were measured at room temperature and compared with the characteristics of the single crystals grown by the Bridgman technique for a wide range of compositions of the alloys.