Fe-Al-N 合金の一次再結晶集合組織におよぼす炭素量の効果

概要

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Fe-Al-N alloys investigated contained <0.005%∿0.06% Al, <0.002%∿0.02% N and 0.001%∿0.04% C. Effects of C content on primary recrystallization texture, AIN precipitation, grain size and drawability in these alloys were studied. With increasing C content, the amount of grains with {111} lattice plane parallel to the sheet plane decreases, the main component of primary recrystallization texture changes from {111} <110> to {554} <225>, grain size decreases, grain shape changes from the "pancake" to the equiaxial type, and the drawability markedly decreases. These effects of C content on various properties of Fe-Al-N alloys are rather inconspicuous for the C content up to 0.01% but become extremely remarkable when it exceeds 0.01% and are explained by the effect of C content on AIN precipitation during precipitation treatment prior to cold rolling and during heating to (and at) the annealing temperature.
社団法人日本鉄鋼協会の論文
1972-01-01