本发明涉及一种通过高能喷丸提高钛合金表面耐蚀的方法，属于金属表面改性技术领域。该方法包括制作喷丸、打磨整形、酸洗、烘干、喷丸加工、超声波清洗和烘干七大步骤。本发明利用高能喷丸过程中铬丸轰击钛合金表层，形成一个掺杂铬元素的异质层状结构，提高钛合金的表面硬度和耐蚀性，优化表面性能。本发明方法设计简单操作方便，能够有效解决传统钛合金耐腐蚀性能不足，强腐蚀环境综合服役性能不足的问题。采用此方法处理的钛合金表面耐腐蚀性好，硬度高，能显著提高传统钛合金的耐腐蚀性能和电化学耐蚀性，可延长钛材的使用寿命，获得明显的经济效益。 

The invention relates to a method for improving surface corrosion resistance of a titanium alloy through high-energy shot blasting, and belongs to the technical field of metal surface modification. The method comprises the seven steps of blast shot manufacturing, grinding and shaping, acid pickling, blast shot machining, ultrasonic cleaning and drying. By means of the method, chromium shots are used for bombarding the surface layer of the titanium alloy in the high-energy shot blasting process, a chromium element doped heterogeneous stratified structure is formed, the surface hardness and corrosion resistance of the titanium alloy are improved, and surface performance is optimized. According to the method, design is simple, operation is convenient, and the problems that corrosion resistance of traditional titanium alloys is insufficient, and the comprehensive service performance of the strong corrosion environment is sufficient can be solved. The titanium alloy treated through the method is good in surface corrosion resistance and high in hardness, the corrosion resistance and electrochemical corrosion resistance of traditional titanium alloys can be remarkably improved, the service life of a titanium material can be prolonged, and remarkable economic benefits are obtained.