Author
E. A. Bloch
Bio: E. A. Bloch is an academic researcher. The author has contributed to research in topics: Metallography & Dispersion (chemistry). The author has an hindex of 1, co-authored 1 publications receiving 224 citations.
Topics: Metallography, Dispersion (chemistry)
Papers
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TL;DR: In this paper, the manufacturing, processing, joining, finishing, and application of dispersion-strengthened aluminum alloys fro aluminum powder are discussed, and the mechanical and physical properties, structure, and relationship between mechanical properties and structure are given.
Abstract: The manufacture, processing, joining, finishing, and application of dispersion-strengthened aluminum alloys fro aluminum powder are discussed. The mechanical and physical properties, structure, and the relationship between mechanical properties and structure are given for the alloys. (N.W.R.)
224 citations
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1,633 citations
TL;DR: In this article, the relationship between precipitation phenomena, grain size and mechanical behavior in a complex precipitation-strengthened alloy system, Al 7075 alloy, a commonly used aluminum alloy, was selected as a model system in the present study.
995 citations
519 citations
TL;DR: In this article, the microstructural evolution during cryomilling, consolidation and processing, the thermal stability of the microstructure, and mechanical properties of consolidated materials are compared to those results for powders and consolidated materials generated by mechanical alloying, milling at ambient temperatures and other means to produce fine grained materials.
516 citations
TL;DR: In this paper, the authors describe four criteria for the selection of alloying elements capable of producing castable, precipitation-strengthened Al alloys with high-temperature stability and strength.
Abstract: We describe four criteria for the selection of alloying elements capable of producing castable, precipitation-strengthened Al alloys with high-temperature stability and strength: these alloying elements must (i) be capable of forming a suitable strengthening phase, (ii) show low solid solubility in Al, (iii) low diffusivity in Al, and (iv) retain the ability for the alloy to be conventionally solidified. With regard to criterion (i), we consider those systems forming Al3M trialuminide compounds with a cubic L12 crystal structure, which are chemically and structurally analogous to Ni3Al in the Ni-based superalloys. Eight elements, clustered in the same region of the periodic table, fulfill criterion (i): the first Group 3 transition metal (Sc), the three Group 4 transition metals (Ti, Zr, Hf) and the four latest lanthanide elements (Er, Tm, Yb, Lu). Based on a review of the existing literature, these elements are assessed in terms of criteria (ii) and (iii), which satisfy the need for a dispersion...
498 citations