论文部分内容阅读
将H13钢在680℃热铝合金液中浸蚀1、3和5 h后,对其形成的焊合表面的形貌、厚度和成分进行研究。结果表明,随着浸蚀时间的延长,表面从局部腐蚀扩展为全面腐蚀,表面过渡层平均厚度逐渐增加,5 h后厚度达到106μm。随着与钢基体的距离增大,焊合表面Fe含量逐渐减少,Al含量逐渐增加,Fe、Al原子相互扩散生成金属间化合物层。
After the H13 steel was etched in hot aluminum alloy liquid at 680 ℃ for 1,3 and 5 h, the morphology, thickness and composition of the welded surface were studied. The results show that with the prolongation of etching time, the surface extends from local corrosion to full corrosion, the average thickness of the surface transition layer gradually increases, and the thickness reaches 106μm after 5 h. With the increase of the distance from the steel substrate, the content of Fe decreases and the content of Al gradually increases. The intermetallic compound layer diffuses into Fe and Al atoms.