ISSN:
1573-8973
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. Magnetic studies of wire 1.2 mm in diameter of Alumel, Chromel, NK, and SA alloys showed magnetic heterogeneity of these alloys along their lengths. 2. To increase the homogeneity of the thermoelectric and magnetic properties the alloys must be annealed in continuous electric furnaces. 2. With annealing in air the surface layers of the alloys are impoverished in alloying components, which can be determined from the magnetic flux ΦS. Changes in the concentration affect the thermo-emf of the alloys. This relationship makes it possible to measure the thermo-emf by the saturation flux. 3. As the result of heat treatment the paramagnetic Chromel alloy becomes ferromagnetic, which is evidently due to selective oxidation of chromium.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00703833
Permalink