ArcelorMittal (Canada)

t—Solid carbon-based reducing agents used in the electrothermal production of industrial-grade silicon are compared. The properties and structure of traditional and nontraditional reducing agents are considered. Nontraditional reducing agents are produced by rapid oxidative pyrolysis of nonclinkering long-flame coal from fields in Central Kazakhstan (the Shubarkol and Kuu-Chek fields). The microstructure (pore size, thickness of pore walls) of the reducing agents is determined. With increase in heating rate, the pore size decreases. A developed pore structure appears in the special coke, and its reactivity increases. The reactivity is the most important parameter in the electrothermal production of silicon.

Combined innovative technology developed in this article makes it possible to produce bimetallic long products in the form of bars and wires with improved mechanical properties, due to the ultrafine grain structure of the material, with less energy and labor costs and implementation of continuity principle in industrial enterprises of metal-working industry. The combination of equal-channel angular pressing with drawing makes it possible not only to harden the composition, but at the same time to preserve important and regulated by a number of GOST plastic properties of the products. This circumstance favorably distinguishes the method under study from other (traditional) types of deformation treatment.

An innovative approach to the study of strategic dynamics is presented, pedagogical conditions are studied that optimize the educational process, and shows the heterogeneity of didactic and educational strategies. In the context of the purpose and objectives of the study, the issues with the implementation of innovative activities in line with new strategic trends are considered. The acmeological-synergetic approach is used as an internal source of the axiological core formation, taking into account psychological and didactic barriers. Characteristic strategies are singled out from the standpoint of the teaching staff and students. In connection with the strategic trends in the online education modernization in the study of mathematics and physics, psychological and pedagogical components are highlighted in the context of acmeology, synergetics, axiology

Liquid metal embrittlement (LME) has frequently been reported in various systems: Cu-Bi, Ni-Bi, Al-Ga, and Fe-Zn for more than 60 years. Although advances have been made in understanding the phenomenon, the role of grain boundary (GB) type and characteristics in LME has remained unclear. The present work shows that liquid metal penetration only occurs in random GBs, where its propagation path is a function of misorientation angle (θ) and stress component perpendicular to GB plane. In contrast, low-Σ coincidence site lattice (CSL) boundaries: Σ3 (θ = 60 deg) and Σ5 to 9 (~ θ = 40 deg) resist LME, even at the maximum stress component. Triple junctions of CSL and random GB block liquid metal penetration by modifying of the random GB misorientation angle. These findings provide insights to employ grain boundary engineering techniques to increase population of CSLs over random GBs and, hence, mitigate LME.

Advanced high-strength steels (AHSS) used in automotive structural components are commonly protected from corrosion using zinc coatings. However, the steel/zinc system creates the potential for liquid metal embrittlement (LME) during welding. Although adjustments to the welding process have been studied, the present literature has not examined the use of variable input currents for LME reduction. In this work, a ramp down welding current showed LME severity decreased by 60% compared to a standard constant current. Reductions in both crack size and number of cracks were observed for high currents (Imax + 20%). A numerical model of the resistance spot welding process was constructed, which showed when welding with a ramp down welding current, the electrode-to-sheet interface spends less time at an LME-sensitive temperature compared to the standard welding current. Furthermore, it avoids a large jump in tensile stress when the electrodes are removed.

New perspective is provided on a critical period in the development of the Canadian automotive industry. In the 1980s, five foreign manufacturers built new vehicle assembly operations in Canada, effectively transforming that country’s automotive industry. Drawing from a combination of interviews with key actors and a review of archives, this case study makes several contributions. First, gaps are closed in the economic history of one of Canada’s most important industries. Second, the case demonstrates the capacity of using historical perspective to extend an existing theory to a new area of inquiry. In this case, Multiple Streams Theory is employed to explain the process of inward FDI attraction. This includes a description of the role of policy entrepreneurs and their capacity to create and exploit opportunities. Third, the case demonstrates the continuing relevance of integrating historical perspective to contemporary issues in business, management, and public policy.