摘要
在GCr15轴承钢基体上制备了Ti－C→DLC梯度复合膜．对其深度成分分布、化学结构及其在试验室环境下对GCr15商品钢球的摩擦性能进行了研究．结果表明，在轴承钢基体与DLC膜之间形成了Ti，C成分呈梯度变化的Ti－C过渡层，C和对以TiC态和游离态两种化学状态存在．Ti—C梯度过渡层对摩擦承载能力起着关键性的影响，Ti－C→DLC梯度复合膜具有高的摩擦持久寿命和稳定的低摩擦系数，其摩擦系数约为0．16左右．
The Ti-C→DLC graded composite films have been prepared on GCr15 bearing steel substrates. The composition depth profile and chemical structure were investigated, and frictional performance against the GCr15 steel commercial ball was also studied in normal laboratorial environment. The results showed that the Ti-C transition layer which the composition of Ti and c gradually evolved were formed between the GCr15 bearing steel substrate and DLC film.Mixing of C, Ti atoms and formation of TiC in the Ti-C transition layer were found. the Ti-C gradual transition layer is a key factor for the frictional bearing capacity. Steady low friction coefficient, which is ca. 0.16, and high friction durability of Ti-C-DLC graded composite films were revealed.
出处
《材料科学与工艺》
EI
CAS
CSCD
1999年第1期17-21,共5页
Materials Science and Technology
