• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>19th Symposium on "Materials Science and Engineering", Dec 13-14, 2000, Koganei Campus of Hosei University >PHASE TRANSFORMATION IN 304 STAINLESS STEEL INDUCED WITH ION IMPLANTATION/RADIATION DURING ANNEALING
【24h】

PHASE TRANSFORMATION IN 304 STAINLESS STEEL INDUCED WITH ION IMPLANTATION/RADIATION DURING ANNEALING

机译：退火过程中离子注入/辐射诱导304不锈钢的相变

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

Thin foil specimens of 304 stainless steel have been implanted with 100 keV Xe ions in a high voltage transmission electron microscope at 773, 723, 523, 423, 353 and 295 K respectively. The structure and the structure changes induced by the ion radiation are observed by means of transmission electron microscopy (TEM). Three kinds of phase transformations, type 1, type 2 and type 3, are observed. Type 1 and type 2 are the phases typically observed in the specimens implanted/radiated at room temperature with-sizes of the phase grains from several nanometers to several ten nanometers. They are also observed in the specimens implanted at temperatures up to 773 K, but the mount and the grain size of the phases decreases with increasing the temperature and drops almost to zero at 773 K. On the other hand, type 3 phase is observed in the specimens implanted at temperatures from 423 K to 723 K. The grain size of this phase is about 200 to 400 nm and becomes larger with increasing the temperature. The results reveal that the chemical driving force of the fcc structure of austenite to the hcp or/and the bcc structure is a key factor for the type 1 and type 2 phase transformations. The point defects generated by radiation and the radiation enhanced diffusion may be important factors to the phase transformation of type 3.
机译：分别在773、723、523、523、423、353和295 K的高压透射电子显微镜中，将304不锈钢薄箔试样植入了100 keV Xe离子。通过透射电子显微镜（TEM）观察由离子辐射引起的结构和结构变化。观察到三种类型的相变，类型1，类型2和类型3。 1型和2型是在室温下植入/辐射的样品中通常观察到的相，相晶粒的大小从几纳米到几十纳米。在高达773 K的温度下注入的标本中也观察到了它们，但是随着温度的升高，相的数量和晶粒尺寸减小，而在773 K时几乎下降到零。样品在423 K至723 K的温度下注入。该相的晶粒尺寸约为200至400 nm，并且随着温度的升高而变大。结果表明，奥氏体fcc结构对hcp或bcc结构的化学驱动力是1型和2型相变的关键因素。辐射产生的点缺陷和辐射增强的扩散可能是3型相变的重要因素。

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