Tribological properties of tribofilms formed from ZDDP in DLC/DLC and DLC/steel contacts
Tribological properties of tribofilms formed from ZDDP in DLC/DLC and DLC/steel contacts
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DOI：
10.1016/j.triboint.2010.10.023
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发表时间：
2011-02
影响因子：
6.2
通讯作者：
Balasubramaniam Vengudusamy;Jonathan H. Green;G. Lamb;H. Spikes
中科院分区：
文献类型：
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作者：
Balasubramaniam Vengudusamy;Jonathan H. Green;G. Lamb;H. Spikes
类金刚石涂层（DLC）被认为是提高发动机零部件摩擦和耐磨性的重要途径。因此，了解传统的发动机油添加剂如ZDDP是否可以在DLC接触中形成摩擦膜并像在钢对钢接触中那样有效地减少摩擦和磨损是很有意义的。本文比较了六种不同的DLC涂层与ZDDP的行为。可以看出，ta-C比其他类型提供更低的边界摩擦，而a-C：H提供更好的防磨损。在DLC/DLC摩擦副中，只有W-DLC上形成了垫状结构，而ZDDP衍生的摩擦膜在所有DLC上都形成了。
Diamond-like carbon coatings (DLCs) are considered to hold great promise for improvement in friction and wear resistance of engine parts. It is hence interesting to know whether conventional engine oil additives such as ZDDP can form tribofilms and reduce friction and wear in DLC contacts as effectively as they do in steel on steel contacts. This paper compares the behaviour with ZDDP of six different DLC coatings. It is seen that ta-C gives lower boundary friction than the other types while a-C:H gives better wear prevention. A ZDDP-derived tribofilm forms on all DLCs but a pad-like structure is seen only on W-DLC in DLC/DLC tribopairs.