CAJ | 학술논문

对固态铝和固态铁界面金属间化合物的生长及金属间化合物对界面结合的影响进行了研究。结果表明，固态铝和固态铁热处理后的界面主要包括Fe2Al5和FeAl3化合物层，金属间化合物恶化了界面结合强度。在拉剪测试中，断裂主要发生在Fe2Al5或FeAl3化合物层，断裂的位置主要取决于化合物层内部的缺陷，包括微裂纹和空洞。热膨胀系数不匹配产生的应力导致内部微裂纹产生，内部孔洞产生的原因是Kirkendall效应。该研究对铝和铁的焊接与连接，尤其是对铝钢复合板的制备，奠定了一定的基础。
대고태려화고태철계면금속간화합물적생장급금속간화합물대계면결합적영향진행료연구。결과표명，고태려화고태철열처리후적계면주요포괄Fe2Al5화FeAl3화합물층，금속간화합물악화료계면결합강도。재랍전측시중，단렬주요발생재Fe2Al5혹FeAl3화합물층，단렬적위치주요취결우화합물층내부적결함，포괄미렬문화공동。열팽창계수불필배산생적응력도치내부미렬문산생，내부공동산생적원인시Kirkendall효응。해연구대려화철적한접여련접，우기시대려강복합판적제비，전정료일정적기출。
The growth of intermetallic compounds at the interface between solid Al and Fe and the effects of intermetallic compound layers on the interfacial bonding of clad materials were investigated. The results showed that the interface between the solid Fe and Al formed by heat-treatment consisted of Fe2Al5 and FeAl3 intermetallic compound layers, which deteriorated the interfacial bonding strength. Fractures occurred in the intermetallic compound layer during the shear testing. The location of the fracture depended on the defects of microcracks or voids in the intermetallic compound layers. The microcracks in the intermetallic compound layer were caused by the mismatch of thermal expansion coefficients of materials during cooling, and the voids were consistent with the Kirkendall effect. The work will lay an important foundation for welding and joining of aluminum and steel, especially for fabrication of Al-Fe clad materials.