有哪些信誉好的足球投注网站Microstructural characterisation of rolling contact fatigue damage in flashbutt welds.pdfVIP
- 1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
- 2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
- 4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
- 5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
- 6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
- 7、VIP文档为合作方或网友上传，每下载1次， 网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档
查看更多
Microstructural characterisation of rolling contact fatigue damage in flashbutt welds.pdf
Wear 366-367 (2016) 368–377
Contents lists available at ScienceDirect
Wear
journal homepage: /locate/wear
Microstructural characterisation of rolling contact fatigue damage in ?ashbutt welds
Peter Mutton, John Cookson, Cong Qiu n, Darrien Welsby
Institute of Railway Technology, Monash University, Wellington Road, Clayton, Victoria 3800, Australia
article info
Article history: Received 3 October 2015 Received in revised form 23 February 2016 Accepted 19 March 2016 Available online 25 March 2016
Keywords: Rail steels Rail welding Rolling contact fatigue
abstract
The development of premium heat treated rail steels with hardness levels of 400HB and above, and the application of these under high axle load conditions, has provided substantial improvements in rail lives. An additional bene?t is the potential to increase the intervals between consecutive grinding cycles, where rail grinding is used to control rolling contact fatigue damage. Increased grinding intervals will, however, place more emphasis on the performance of rail welds which are more sensitive to localised rolling contact fatigue damage than parent rail. The increased sensitivity to damage at welds arises from the inherent variability in material characteristics, and may vary between welding procedures, and for any particular welding process, between rail grades.
A detailed microstructural examination of the characteristics associated with ?ashbutt welds in the new condition and after exposure to service conditions which resulted in gauge corner cracking has been performed in order to correlate the development of rolling contact fatigue damage to the underlying microstructure. Of particular interest were the behaviour of the softened (heat affected) zones and the role of grain boundary networks of pro-eutectoid cementite which may develop during welding of hypereutectoid rail steels. Understanding the effects of these microstructures on the material response to wheel rail contact conditions, and using this
您可能关注的文档
- Incomplete contacts in partial slip subject to varying normal and shear loading, and their representation by asymptotes.pdf
- Incorporating the macro view in global talent management.pdf
- Increase of contact radius due to deflection in low velocity impact of composite laminates and prediction of delamination threshold load.pdf
- Increased Rate of Poor Laryngoscopic Views in Patients Scheduled for Cardiac Surgery Versus Patients Scheduled for General Surgery A Propensity Score-Based Analysis of 21,561 Cases.pdf
- Indentation response of piezoelectric films under frictional contact.pdf
- Individual consideration viewed at multiple levels of analysis A multi-level framework for examining the diffusion of transformational leadership.pdf
- Induced liquid-solid contact via micronano multiscale texture on a surface and its effect on the Leidenfrost temperature.pdf
- Inertial parameter identification using contact force information for an unknown object captured by a space manipulator.pdf
- Influence of a channel-forming peptide on energy barriers to ion permeation, viewed from a continuum dielectric perspective.pdf
- Influence of a locally-tailored external feedback control on the overall dynamics of a non-contact AFM model.pdf
- Microstructural Evolution of a Hypoeutectoid Pearlite Steel under Rolling-sliding Contact Loading.pdf
- Microstructure and vacuum arc characteristics of CuO skeletal structure Ag-CuO contact materials.pdf
- Microstructure variation and local plastic response of chrome molybdenum alloy steel after quasi rolling contact fatigue testing.pdf
- Middle and long distance athletics races viewed from the perspective of complexity.pdf
- MiLDA A graph embedding approach to multi-view face recognition.pdf
- Miscalculation of film thickness, friction and contact efficiency by ignoring tangential tractions in elastohydrodynamic contacts.pdf
- Mitochondrial contact sites as platforms for phospholipid exchange.pdf
- Mitochondrial oxidative phosphorylation and energetic status are reflected by morphology of mitochondrial network in INS-1E and HEP-G2 cells viewed by 4Pi microscopy.pdf
- Mixed bi-subject kinship verification via multi-view multi-task learning.pdf
- Mixotrophy of a Photosynthetic Flagellate viewed from an Optimal Foraging Perspective.pdf
文档评论（0）