Abstract
The 0. 10C-0. 32SI-1. 37Mn steel contained 0. 05% Nb. Mechanical property and microstructural changes during isothermal aging at 600 C were determined, and compared with the corresponding properties of Nb-free steel. In the solution annealed state (1200 C) the Nb-containing steel had the smaller grain size and higher dislocation density. Hardness and the 0. 2% limit of this steel had two pronounced maxima during aging. These (and the accompanying minima in elongation at rupture) are attributed to different metastable niobium carbon precipitates.
Translated title of the contribution | Precipitation in Low-Pearlite, Niobium-Microalloyed Structural Steel During Isothermal Aging. |
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Original language | German |
Pages (from-to) | 541-545 |
Number of pages | 5 |
Journal | Arch Eisenhuettenwes |
Volume | 47 |
Issue number | 9 |
State | Published - 1976 |