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TEXTURE AND MECHANICAL PROPERTIES OF WARM ROLLED Fe_3Al BASED ALLOY

SUN Zuqing , MAO Weimin , CHAI Shuyan , YANG Wangyue , HUANG Yuanding(University of Science and Technology Beijing , Beijing 100081. China)RAABED , KEICHELJ(Institut fur Metallkunde und Metallphysik. RWTH Aachen , Germany)

金属学报(英文版)

The rolling and recrystallization texture of B2 type Fe3Al based alloys were systematially investigated by ODF. The results showed that the rolling texture consisted of a strong β-fibre close to {111} and a {001} <110> texture. In annealing process the rolling texture was strengthened at recovery stage and gradually disappeared during primary recrystallization. A strong shear texture was produced by only 20% Pass reduction, indicating that the Fe3Al is sensitive to shear stress. The corresponding room temperature tensile properties were measured. A correlation between texture mode and room temperature mechanical properties was observed.

关键词: : Fe3Al , null , null , null

Fe_3Al与水汽及氧气的表面反应

万晓景 , 朱家红 , 黄胜标

金属学报

用AES及SPS研究了Fe3Al与水汽及氧气表面反应动力学。表明二者的反应速度都很快,且都在1.5×10-6Pa·s反应即开始当暴露量达1×10-4Pa·s,水汽与Fe3Al反应达到稳定值,反应产物为Al2O3.Fe3Al与氧气的反应在1.5×10-5Pa·s时达到稳定,此时主要是Al的氧化,当暴露量达3×10-2Pa·s,Fe3Al与氧的反应达到第二阶段平衡,此时主要为Fe的氧化.上述表面反应动力学可用来圆满解释金属间化合物在不同环境气氛中的拉伸结果.

关键词: Fe_3Al , surface reaction , Auger electron spectrum , hydrogen embrittlement

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