Military Academy

About: Military Academy is a based out in . It is known for research contribution in the topics: Population & Context (language use). The organization has 2478 authors who have published 3003 publications receiving 33188 citations.

Microstructure of aluminized stainless steel 310 after annealing

Abstract: The aluminized coating on type 310 stainless steel prepared by high-activity Al pack cementation method has been annealed at 900 °C for 12 h to transform the brittle δ-Fe2Al5 phase into the more ductile β-FeAl phase. The microstructure is studied in detail with transmission electron microscopy. The thick outer layer has β-(Fe, Ni)Al as matrix with cube-like Cr2Al precipitates. The interfacial layer has a thin layer of metastable FCC phase (layer I) and then mixed β-(Fe, Ni)Al grains and α-(Fe, Cr) grains (layers II and III). The Cr2Al precipitates are present in the β-(Fe, Ni)Al grains in layer II but not in those in layer III, while β-FeAl precipitates are present in the α-(Fe, Cr) grains in both layers. The orientation relationships between various phases, the formation of the layers, and the precipitation of Cr2Al in β-(Fe, Ni)Al are discussed.

Reactions with halogenated compound: Synthesis of several new pyrazolo[3,2-c] triazine and 2-benzenesulfonylglyoxal arylhydrazone derivatives

Abstract: Diazotized primary artomatic amines4 coupled with the ketosulfones1–3 in ethanol in the presence of sodium acetate at 0°C to afford the corresponding hydrazones5–7. Also diazotized 3-aminopyrazoles14 coupled with1–3 in ethanolic sodium acetate to give the pyrazolotriazines18–20 in good yields. Compounds5–7 and18 can also be obtained from the reaction of hydrazidoyl halides8–10 and21 with sodium benzenesulfinate. The hydrazones11–13 can easy be oxidized to the hydrazones5–7, using hydrogen peroxide in acetic acid.

Choice of Countermeasures in Project Risk Management Using Fuzzy Modelling

Abstract: The paper proposes a new method for project risk management. It is proposed how, after risk identification, the countermeasures for risk mitigation and elimination can be selected, taking into account the cost and effort linked to them as well as the weights assigned by the decision maker to risk attributes, such as probability or consequences, and the values of those attributes. The risk attributes and weights, as well as the maximal total risk and the maximal total effort of risk mitigation accepted by the decision maker for the project are expressed as fuzzy numbers, which in turn constitute models for linguistic expressions.