Microstructure and properties of 308LSI steel obtained by deposition of metal wire

Shaped metal deposition (SMD) is a relatively new technology of additive manufacturing, which creates near-net shaped components by joining metallic materials by melting the area of a welding joint in high vacuum in the range from 10-3 to 10-6 mbar. In the present study, the main mechanical properties including micro-hardness and tensile properties were investigated. Single bead walls were deposited. Test pieces were machined from the deposited walls according to the National standard of Russia Federation for the mechanical tests. The tensile properties also showed dependence on the direction of the test carried out. All the examined tensile properties of the as deposited samples are close-matched properties of the as cast material

Surface modification of structural materials by low-energy high-current pulsed electron beam treatment

Microstructure formation in surface layers of pure titanium and ferritic-martensitic steel subjected to electron beam treatment is studied. It is shown that low energy high-current pulsed electron beam irradiation leads to the martensite structure within the surface layer of pure titanium. Contrary, the columnar ferrite grains grow during solidification of ferritic-martensitic steel. The effect of electron beam energy density on the surface morphology and microstructure of the irradiated metals is demonstrated

The Watershed Source Book: Watershed-Based Solutions to Natural Resource Problems

1 v. (various pagings) : maps (2 folded) ; 28 cmhttps://scholar.law.colorado.edu/books_reports_studies/1052/thumbnail.jp

The Watershed Source Book: Watershed-Based Solutions to Natural Resource Problems

1 v. (various pagings) : maps (2 folded) ; 28 cmhttps://scholar.law.colorado.edu/books_reports_studies/1052/thumbnail.jp

Density Profiles in Random Quantum Spin Chains

We consider random transverse-field Ising spin chains and study the magnetization and the energy-density profiles by numerically exact calculations in rather large finite systems ($L\le 128$). Using different boundary conditions (free, fixed and mixed) the numerical data collapse to scaling functions, which are very accurately described by simple analytic expressions. The average magnetization profiles satisfy the Fisher-de Gennes scaling conjecture and the corresponding scaling functions are indistinguishable from those predicted by conformal invariance.Comment: 4 pages RevTeX, 4 eps-figures include