求翻译：界面处没有Fe-Sn相生成，很可能由于界面前沿Fe原子的浓度尚未达到产生Fe-Sn相所需的临界浓度所致。在界面前沿是什么意思？

At the interface no fe of-the sn-phase generation, is likely due to the front of the interface fe atom concentration has not yet reached the critical concentration of a fe-the sn required due. In front of the interface

The interface is not Fe - Sn generated, it is most likely because of the atom Fe edge interface has not yet been reached concentrations have Sn Fe - that the critical density. Cutting-edge in the interface

The contact surface place does not have the Fe-Sn mutual promotion of the five elements to become, very possible because the contact surface front Fe atom density not yet achieved has critical concentration result which Fe-Sn needs.In contact surface front

Interface is not Fe-Sn is generated, is likely due to the interface frontiers concentration of Fe atoms Fe-Sn has not been reached due to the critical concentration that is required. At the forefront the interface

interface does not have to generate Sn Fe - it is possible for interface, cutting-edge Fe atoms have not yet reached the density Sn Fe - in the critical density. Cutting-edge in the interface;