• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Fatigue performance of pre-corroded 6xxx aluminum alloy laser beam welds with dissimilar heat treatment
【2h】

Fatigue performance of pre-corroded 6xxx aluminum alloy laser beam welds with dissimilar heat treatment

机译：预腐蚀6xxx铝合金激光焊缝的热疲劳性能与热处理不同

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The role of existing corrosion damage on the fatigue performance of 6156 AA laser beam welds in T3 state, with additional post weld heat treatment T8, has been assessed. The welds were subjected to salt fog environment for 720 hours and then metallographically examined to characterize corrosion behaviour. The corrosion results demonstrate that T3/T8 treatment provides high corrosion susceptibility in the weld area, where localized damage in the form of large pits prevails. Fatigue performance of corroded samples is drastically degraded by the presence of corrosion pits which act as stress raisers and accelerate crack initiation in the corroded samples. Fatigue cracks initiate at the root of corrosion pits on the large specimen surfaces in the weld metal area and propagate in through thickness direction. The obtained results have been compared to results from 6156 welds with T4 treatment in as welded conditions. © 2014 The Authors. Published by Elsevier Ltd.
机译：评估了现有腐蚀损伤对T3状态下的6156 AA激光焊接的疲劳性能的影响，并进行了额外的焊后热处理T8。将焊缝置于盐雾环境中720小时，然后进行金相检查以表征腐蚀行为。腐蚀结果表明，T3 / T8处理在焊缝区域具有较高的腐蚀敏感性，在焊缝区域中，大凹坑形式的局部损坏普遍存在。被腐蚀样品的疲劳性能由于腐蚀坑的存在而大大降低，腐蚀坑起应力的作用，并加速了腐蚀样品中的裂纹萌生。疲劳裂纹始于焊缝金属区域大试样表面腐蚀坑的根部，并沿厚度方向传播。将所得结果与在焊接条件下进行T4处理的6156焊缝的结果进行了比较。 ©2014作者。由Elsevier Ltd.发布

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号