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Prediction of failure modes during deep Drawing of metal sheets with nickel coating
  • ISSN号:1005-0302
  • 期刊名称:Journal of Materials Science & Technology
  • 时间:2013.11
  • 页码:1059-1066
  • 分类:V232.4[航空宇航科学与技术—航空宇航推进理论与工程] TK263.61[动力工程及工程热物理—动力机械及工程]
  • 作者机构:[1]Key Laboratory of Key Film Materials and Application for Equipment (Hunan Province), School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China, [2]Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China, [3]Hunan Provincial Key laboratory of Thin Film Materials and Devices, School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China, [4]School of Mechanical Engineering Xiangtan University, Xiangtan 411105, China, [5]Department of Mechanical Engineering, Curtin University, Perth, WA 6845, Australia
  • 相关基金:This work was supported by the National Natural Science Foundation of China (Grant Nos. 51172192, 11272275 and 11002122), the Natural Science Foundation of Hunan Province (Grant No. 11114003) and the Doctoral Scientific Research Foundation of Xiangtan University (Grant Nos. KZ08022, KZ03013 and KF20140303).
  • 相关项目:量纲分析法建立镀层金属薄板加工成形的失效机制图
中文摘要:

到在不同服务的温度分发和热压力的地上演的学习,有热障碍涂层的汽轮机片的一个二维的模型被开发,在哪个 conjugate 热转移分析和 decoupled 热压力的计算方法被采用。基于模拟结果,温度的不一致的分布出现在片表面的不同位置,这被发现,它直接影响了应力领域。有 1030  °C 的价值的最大的温度发生在前缘。在稳定的阶段期间,热地成年的氧化物(TGO ) 的最大的压力出现在吸方面的中间,到达 3.75  GPa。在冷却的结束阶段,有 −3.5 GPa 的价值的 TGO 的最大的压缩压力发生在前缘。因此,在稳定的阶段期间,危险区域可以在吸方面定位,这能被预言,当前缘可以是对冷却上的失败敏感的更多时。

英文摘要:

To study the temperature distribution and thermal-stress field in different service stages, a two-dimensional model of a turbine blade with thermal barrier coatings is developed, in which the conjugate heat transfer analysis and the decoupled thermal-stress calculation method are adopted. Based on the simulation results, it is found that a non-uniform distribution of temperature appears in different positions of the blade surface, which has directly impacted on stress field. The maximum temperature with a value of 1030 ℃ occurs at the leading edge. During the steady stage, the maximum stress of thermally grown oxide (TGO) appears in the middle of the suction side, reaching 3.75 GPa. At the end stage of cooling, the maximum compressive stress of TGO with a value of-3.5 GPa occurs at the leading edge. Thus, it can be predicted that during the steady stage the dangerous regions may locate at the suction side, while the leadine edge mav be more Drone to failure on cooling.

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期刊信息
  • 《材料科学技术学报:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科协
  • 主办单位:中国金属学会
  • 主编:
  • 地址:中国沈阳文化路72号
  • 邮编:110016
  • 邮箱:
  • 电话:024-83978208
  • 国际标准刊号:ISSN:1005-0302
  • 国内统一刊号:ISSN:21-1315/TG
  • 邮发代号:
  • 获奖情况:
  • 国家“双百”期刊
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  • 被引量:474