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 The sintering temperature of the briquets strongly affects the structure and the mechanical properties of semifinished products of SAP-1. The decrease of the strength, the increase of ductility, and the formation of a more perfect texture indicate that sintering at 650°C changes the structure. Possibly there is recrystallization in microvolumes which is not revealed by the x-ray method used in this investigation. The texture formed during compression and subsequent hot and cold rolling is stable up to 650°C, which indicates high stability in the material. The mechanical properties of the pressed and rolled semifinished products decrease after annealing as the result of the formation of microcracks. The annealing temperature at which the microcracks begin to appear depends on the sintering temperature of the briquets. Thus, an increase of the sintering temperature leads to more complete degassing, and this decreases the possibility of the formation of microcracks during subsequent heating, and thus widens the temperature range in which the properties of SAP remain unchanged.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00673590
Permalink