Measuring the85Kr content in krypton using a liquid ionization chamber

Translated from Atomnaya Énergiya, Vol. 66, No. 6, pp. 415–416, June, 1989.     

Acquisition, Sharing, and Processing of Large Data Sets for Strain Imaging: An Example of an Indented Ni3Al/Mo Composite

The local effects of stress from a mechanical indentation have been studied on a Ni₃Al single crystal containing submicron inclusions of molybdenum fibers. X-ray microdiffraction (PXM) was used to measure elastic and plastic deformations near the indents. An analysis of freshly acquired massive sets of PXM data has been carried out over the Science Studio network using parallel processing software called FOXMAS. This network and the FOXMAS software have greatly improved the efficiency of the data processing task. The analysis was successfully applied to study lattice orientation distribution and strain tensor components for both the Ni₃Al and the Mo phases, particularly around eight indents patterned at the longitudinal section of the alloy.     

Influence of Wake Flows on the Processes of Heat and Mass Exchange in Apparatuses with Mixing Devices

Theoretical Foundations of Chemical Engineering - The paper deals with the formation of turbulent wake flows arising from the flow around stationary and moving bodies in flows with different...     

Interphase Strain Gradients in Multilayered Steel Composite from Microdiffraction

Multilayered steel composites consisting of alternating martensite and austenite layers and exhibiting a combination of high strength and ductility were successfully fabricated. To understand the microplasticity mechanisms responsible for such exceptional mechanical behavior, 3D X-ray microscopy with a submicron beam size was employed to probe the stress/strain distribution within the top two layers during incremental tensile loading. The 3D depth-dependent strain gradients were monitored in situ near the martensite/austenite interfaces as a function of the load level. It was observed that the strain gradients redistributed during loading. Specifically, large compressive strains developed in the top martensite layer transverse to the loading direction, while small tensile strains were found across the layer interface into the underneath austenite layer.     

Evaluation of rates of heat and mass transfer in artificially agitated flows

Heat and mass transfer in a turbulent flow is subjected to an examination in which the decay of turbulence close to solid surfaces is taken into account.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 40, No. 1, pp. 16–20, January, 1981.