• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Annual Meeting Exhibition of The Minerals, Metals Materials Society >Comparison of Fracture Morphologies and Hydrogen States Present in the Vicinity of Fracture Surface Obtained by Different Methods of Evaluating Hydrogen Embrittlement of DP and TRIP Steels
【24h】

Comparison of Fracture Morphologies and Hydrogen States Present in the Vicinity of Fracture Surface Obtained by Different Methods of Evaluating Hydrogen Embrittlement of DP and TRIP Steels

机译：采用不同方法评价DP和跳闸钢的氢脆性方法附近存在裂缝形态和氢态的比较

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Fracture morphologies and hydrogen states present in the vicinity of the fracture surface of dual-phase (DP) and transformation-induced plasticity (TRIP) steels have been investigated. The fracture surfaces were obtained by the slow strain rate technique (SSRT) at strain rates of 8.33 ×10~(-6) s~(-1) and 1.66 ×10~(-6) s~(-1) and by constant load testing (CLT) under the same hydrogen charging condition. Fracture surfaces were observed using scanning electron microscopy (SEM). The hydrogen states present in the vicinity of the fracture surface were analyzed by thermal des-orption analysis just after the specimens fractured. The results showed that the critical fracture strength was in the order of SSRT (8.33×10~(-6) s~(-1))> CLT > SSRT (1.66×10~(-6) s~(-1)) in both types of specimens. A DP specimen fractured by SSRT at a higher strain rate had only a lower-temperature peak in the hydrogen desorp-tion profile, but the results for SSRT at a lower strain rate and CLT had not only a lower-temperature peak but also a higher-temperature peak. Furthermore, the fracture surfaces changed from intergranular to quasi-cleavage fracture corresponding to the decrease in fracture strength in both types of specimens.
机译：断口形貌和氢的状态呈现在双相（DP）和变诱发塑性（TRIP）的断裂表面附近的钢进行了研究。在应变率8.33×10〜（-6）S〜（-1），通过缓慢应变速率技术（SSRT）获得的断裂表面1.66×10〜（-6）S〜（-1），通过恒定相同的充氢的条件下负载测试（CLT）。使用扫描电子显微镜（SEM）观察断裂面。氢指出存在于断裂面的附近，通过后立即将试样断裂的热脱orption分析来分析。结果表明，临界断裂强度在SSRT的顺序（8.33×10〜（-6）S〜（ - 1））> CLT> SSRT（1.66×10〜（-6）S〜（-1））在这两种类型的标本。在较高的应变速率由SSRT断裂甲DP样品具有仅在氢desorp-灰轮廓的较低温度的峰，但在较低的应变速率的结果SSRT和CLT有不仅较低温度的峰，但也提出了更高 - 温度峰值。此外，断裂面从晶间向准解理断裂对应于两种类型的试样在断裂强度的降低变化。

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