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Latest Strengthening mechanisms of materials Stories

2010-11-26 12:09:37

Materials scientists from Case Western Reserve University and the Institute of Solid State Research in Jlich, Germany have produced particularly clear changes in the atomic structure of sapphire following deformation at high temperatures. Peering through an electron microscope down to a level where a human hair would seem as wide as a washer and dryer set, they were able to quantify deviations from the regular columns of aluminum and oxygen atoms - the stuff of perfect sapphire crystals. The...

2008-02-29 03:00:27

By Das, S Singh, S B; Mohanty, O N; Bhadeshia, H K D H The basic science behind bake hardening steels is well understood in terms of the interactions between interstitial solutes and dislocations. However, the manufacture of such alloys involves a variety of other variables, the interactions between which are influential in controlling the extent of hardening. In the present work, a model which includes the chemical composition of the steel, the strain before aging and the annealing and...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.