Effects of Various Alloying Elements on Tensile Properties of High-Purity Fe-18Cr-(14-16)Ni Alloys at Room Temperature
作者： Kenji Kako , Eishi Kawakami , Joji Ohta , Masami Mayuzumi
DOI: 10.2320/MATERTRANS.43.155
关键词:
摘要: High-purity Fe-18Cr-14Ni/Si, Mn, P, S, C, N alloys and high-purity Fe-18Cr-16Ni/Mo were prepared by a cold crucible method to investigate the intrinsic effects of alloying elements on tensile properties Fe-18Cr-(14-16)Ni at room temperature. The results show that C interstitials had greatest solid-solution strengthening effect, followed ferrite-forming substitutional Mo Si, while P little or no effect. Grain refinement caused decrease in elongation an increase strength magnitude was considerable Fe-18Cr-16Ni-Mo alloys. addition Fe-18Cr-16Ni both internal stress σ 0 coefficient k Hall-Petch relation (σ 0.2 = + kd -1/2 ; where , d, are 0.2% proof stress, grain diameter, constants, respectively). obeyed equation, PS (MPa) 80.9 19.4(Mo) {0.314 0.048(Mo)} x d parentheses indicate content at% is average size m.
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