Studies on softening kinetics of niobium microalloyed
steel using stress relaxation technique

doi:10.1007/s11706-010-0023-2

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Front. Mater. Sci. ›› 2010, Vol. 4 ›› Issue (2) : 197-201. DOI: 10.1007/s11706-010-0023-2

Research articles

Studies on softening kinetics of niobium microalloyed steel using stress relaxation technique

Cheng-Liang MIAO¹,Cheng-Jia SHANG¹,Guo-Dong ZHANG¹,Guo-Hui ZHU²,Hatem ZUROB³,Sundaresa SUBRAMANIAN³,

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Abstract

Stress relaxation was studied in a series of low carbon, high Mn microalloyed steels containing 0.012 wt.%, 0.06 wt.% and 0.1 wt.% Nb. The stress-relaxation curves were modeled using a physically-based model that takes into account the time evolution of precipitation, recovery and recrystallization as well as their interactions. The results confirm that the high Mn, high Nb design can offer distinct advantage over the low Mn design for the application of near-net shape processing.

Keywords

high Nb / high Mn / stress relaxation / recovery / recrystallization / softening

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Cheng-Liang MIAO, Cheng-Jia SHANG, Guo-Dong ZHANG, Guo-Hui ZHU, Hatem ZUROB, Sundaresa SUBRAMANIAN,. Studies on softening kinetics of niobium microalloyed steel using stress relaxation technique. Front. Mater. Sci., 2010, 4(2): 197‒201 https://doi.org/10.1007/s11706-010-0023-2