A study on the initiation processes of white etching cracks (WECs) in AISI 52100 bearing steel
A study on the initiation processes of white etching cracks (WECs) in AISI 52100 bearing steel
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AISI 52100 轴承钢白蚀裂纹 (WEC) 萌生过程的研究
DOI：
10.1016/j.wear.2021.203864
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发表时间：
--
期刊：
影响因子：
5
通讯作者：
W. Holweger
中科院分区：
文献类型：
--
作者：
J. Spille;J. Wranik;S. Barteldes;J. Mayer;A. Schwedt;M. Zürcher;T. Lutz;L. Wang;W. Holweger
任何传动系统的生命周期都取决于其各个部件的可靠性，例如，轴承、齿轮及其连接件。润滑作为一个部件，可防止不受控制的混合摩擦造成的磨损。然而，由于化学和物理过程，润滑剂可能会干扰钢的负载能力。白色腐蚀裂纹（WEC）失效是与该主题相关的最突出的失效机制之一。为了了解其发生和发展过程，我们在FE 8试验台上进行了一系列试验，证明可通过润滑化学重现WEC。所有导致WEC的润滑剂组合物显示出作为早期状态现象的从约80 μm深度开始的表面下的孔，而不导致WEC的油在可比的测试时间内没有显示出任何变化。通过SEM SE/BSE成像和EBSD映射，发现在孔位点旁边的微观结构如新的晶界的修改。目前的调查提供了宝贵的洞察力的形成机制WECs和不同的润滑剂在故障过程中的作用。
The life cycle of any drive train is given by the reliability of its individual components, e.g., bearings, gears, and their connections. Lubrication as a part prevents wear caused by uncontrolled mixed friction. However, lubricants may interfere in the load capacity of the steel due to chemical and physical processes. White etching crack (WEC) failures are one of the most prominent failure mechanisms supposed to be related to this topic. In order to understand its initiation and progression we carried out a series of tests in the FE8 test rig proven to reproduce WECs by lubrication chemistry. These tests were stopped at an early stage.All lubricant compositions leading to WECs showed pores in the subsurface starting in a depth of about 80 μm as an early state phenomenon, while oils not leading to WECs did not show any changes in a comparable test time. Modifications of the microstructure like new grain boundaries were found next to the pore sites by the use of SEM SE/BSE imaging and EBSD mappings. The present investigations give valuable insight into the formation mechanisms of WECs and on the role of different lubricants in the failure process.
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DOI：
--
发表时间：
2018
期刊：
--
影响因子：
--
作者：
Viktorija Rumpf
通讯作者：
Viktorija Rumpf
高碱性磺酸钙清净剂添加剂对滚动接触疲劳试验 100Cr6 钢白蚀裂纹 (WEC) 形成的影响
影响因子：
6.2
作者：
A. Richardson;M.;L. Wang;M. Ingram;Z. Rowland;G. Llanos;R. Wood
通讯作者：
R. Wood
润滑滑动-滚动接触中自发电的实证研究
影响因子：
3.2
作者：
M. Ščepanskis;B. Gould;A. Greco
通讯作者：
A. Greco
影响因子：
2.7
作者：
Azzam, Baher;Harzendorf, Freia;Jacobs, Georg
通讯作者：
Jacobs, Georg
影响因子：
2.1
作者：
Loos, Joerg;Bergmann, Iris;Goss, Matthias
通讯作者：
Goss, Matthias