• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Notch Sensitivity and Failure Behavior of TiAl and K418 Alloys
【24h】

Notch Sensitivity and Failure Behavior of TiAl and K418 Alloys

机译：Tial和K418合金的缺口敏感性和失效行为

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The notch sensitivity of tensile specimens of TiAl and K418 alloys has been investigated, and the notch strength has been quantitatively analyzed. The fracture surface of the specimens has also been observed and analyzed by scanning electron microscopy (JEOL-6700F). By comparing notch rod tensile specimens and special notch rod tensile specimens, it was found that the basic nature, fracture driving force, and fracture criteria of the brittle TiAl alloy and the ductile K418 alloy are different. The final fracture of the K418 alloy is controlled by strain and not by stress, and the specimens do not exhibit notch sensitivity. However, the final fracture of the TiAl alloy is controlled by stress, and the specimens exhibit small notch sensitivity. For the special notch rod tensile specimens, the K418 specimens do not exhibit notch sensitivity. However, for the TiAl alloy, when the notch depth reaches 10% of the specimen diameter, the tensile strength decreases, and when the notch depth reaches 20% of the specimen diameters, the tensile strength sharply decreases.
机译：研究了TiAl和K418合金的拉伸标本的缺口敏感性，并且已经定量分析了凹口强度。还通过扫描电子显微镜（JEOL-6700F）观察并分析样品的断裂表面。通过比较陷波棒拉伸试样和特殊的缺口棒状标本，发现脆性Tial合金的基本性质，断裂驱动力和裂缝标准和延性K418合金的裂缝标准是不同的。 K418合金的最终骨折由菌株控制而不是胁迫，并且样本不表现出缺口敏感性。然而，TiAl合金的最终断裂由应力控制，并且标本表现出小的缺口敏感性。对于特殊的缺口棒拉伸试样，K418样本不表现出缺口敏感性。然而，对于Tial合金，当凹口深度达到样品直径的10％时，拉伸强度降低，并且当凹口深度达到样品直径的20％时，拉伸强度急剧下降。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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