【摘要】 将SUS441不锈钢薄板和1060纯铝薄板交替叠放后，经“轧制复合—合金化退火”工艺制得Fe-Al金属间化合物基叠层（Fe-Al metal-intermetallic-laminate,Fe-Al MIL）复合材料。采用光学显微镜（optical microscope,OM）、扫描电子显微镜（scanning electron microscope,SEM）、X射线衍射仪（X-ray diffractometer,XRD）等设备测试了不同热处理制度下Fe-Al MIL复合材料的界面微观组织形貌、物相组成及化合物生长行为。结果表明：在640℃退火时，均匀层的主要物相为Fe₂Al₅，且有原子分数为5%～6%的Cr固溶于该均匀层；在高于640℃退火时，除由Fe₂Al₅相组成的均匀层之外，化合物层还出现了明显的由Fe₄Al₁₃相和Cr₂Al₁₃相组成的两相层，且两相层交界处有Al_5.50Cr_1.95Fe_2.55相析出；金属间化合物的厚度随退火温度的升高及时间的延长而增加，Fe₂Al₅相的生长规律满足抛物线法则，其生长激活能为192.28 kJ/mol。更多还原

【Abstract】 The Fe-Al metal-intermetallic-laminate （Fe-Al MIL） composites were prepared by alternately stacking SUS441 stainless steel sheets and 1060 pure aluminum sheets following the"rolling claddingalloying annealing"technology.The equipments,such as optical microscope （OM）,scanning electron microscope （SEM）,and X-ray diffractometer （XRD）,were used to investigate the interfacial microstructure,phase composition,and compound growth behavior of Fe-Al MIL composite under different heat treatment regimes.The results show that the main phase of the uniform layer annealing at 640℃ is Fe₂Al₅,and 5%-6% of Cr is solidly dissolved in the uniform layer.When the annealing temperature is higher than 640℃,in addition to the uniform layer composed of Fe₂Al₅,a two-phase layer composed of Fe₄Al₁₃ and Cr₂Al₁₃ phases appears in the compound layer,and Al_5.50Cr_1.95Fe_2.55 phase precipitates at the interface of two-phase layer.The thickness of the intermetallic compound increases with the increase of heat treatment temperature and time,and the growth law of the Fe₂Al₅ phase satisfies the parabolic law with a growth activation energy of 192.28 kJ/mol.更多还原