Metallurgy, Vol. 44 No. 4, 2005.
Original scientific paper
Niskougljični čelici u lijevanom stanju i analiza čvrstoće na visokim temperaturama
A. Ševčík
Abstract
Results of the study of the influence of chemical composition and microstructure on the strength values at high temperature tensile tests are described and discussed. By increasing the testing temperature, strength values in the low carbon steel slab continually decrease. Mathematical description of the temperature course and scatter zone of strength values was realized. Influences of the chemical composition and grain size on the strength values in a temperature interval from 900 to 1500 °C with a step of 100 or 50 °C was established by means of regression analyses. These influences are temperature-dependent. Strength values at 1400 °C, which chiefly depend on the effective grain size, were thoroughly analyzed.
Keywords
lijevani niskougljični čelik; čvrstoća na visokoj temperaturi; lomovi na visokim temperaturama
Hrčak ID:
127818
URI
Publication date:
1.10.2005.
Visits: 1.116 *