Besides, the hardness of W-Co alloy was compatible with the hard anodizing film.Stress concentration was effectively reduced, therefore the film hardness was increased obviously.

• 加之钨钴合金本身的高硬度和高强度可以与硬质氧化膜较好地相配合，能有效地减小应力集中，膜层硬度也因此获得明显提高。