刘神光,周耀,王正,王伟,李金许.钢中氢分布检测技术进展[J].表面技术,2020,49(8):1-14.
LIU Shen-guang,ZHOU Yao,WANG Zheng,WANG Wei,LI Jin-xu.Progress of Detection Techniques for Hydrogen Mapping in Steel[J].Surface Technology,2020,49(8):1-14
钢中氢分布检测技术进展
Progress of Detection Techniques for Hydrogen Mapping in Steel
投稿时间:2020-07-06  修订日期:2020-08-20
DOI:10.16490/j.cnki.issn.1001-3660.2020.08.001
中文关键词:  氢分布  原子探针技术  扫描开尔文力显微镜  二次离子质谱  氢微印技术  热脱附光谱
英文关键词:hydrogen mapping  APT  SIMS  SKPFM  HMT  TDS
基金项目:国家重点研发计划专项(2017YFB0304401);国家自然科学基金钢铁联合项目(U1760203)
作者单位
刘神光 北京科技大学 腐蚀与防护中心,北京 100083 
周耀 北京科技大学 腐蚀与防护中心,北京 100083 
王正 北京科技大学 腐蚀与防护中心,北京 100083 
王伟 北京科技大学 腐蚀与防护中心,北京 100083 
李金许 北京科技大学 腐蚀与防护中心,北京 100083 
AuthorInstitution
LIU Shen-guang Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China 
ZHOU Yao Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China 
WANG Zheng Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China 
WANG Wei Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China 
LI Jin-xu Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China 
摘要点击次数:
全文下载次数:
中文摘要:
      主要介绍了几种目前应用比较广泛的氢分布检测技术的原理及其在氢渗透和氢脆研究中的应用,包括三维原子探针(Atom Probe Tomography, APT)、扫描开尔文探针力显微镜(Scanning Kelvin Probe Force Microscopy, SKPFM)、二次离子质谱法(Secondary Ion Mass Spectroscopy, SIMS)和氢微印技术(Hydrogen microprinting technique, HMT),以及可用来检测氢浓度的热脱附质谱技术(Thermal desorption spectrometry, TDS)等。总结了几种检测技术的原理和特点,并简要介绍了它们在与H有关领域里的典型应用。其中,APT和SIMS是利用质谱法直接检测H,以获得H在材料中的分布;SKPFM是通过H引起的电位变化,来获得H的分布;HMT是通过置换反应,即H原子将Ag+置换为Ag原子,Ag原子沉积在试样表面的分布来表征H的分布;热脱附法则是通过恒定的升温速率下H脱附速率对不同陷阱的敏感性差异,来获得不同陷阱中的H浓度以及H与陷阱的相互作用。这几种检测技术的空间分辨率可达亚纳米、纳米、微米至数微米直至毫米级。另外,SKPFM还具有时间分辨的功能。这些技术在H检测方面的应用,使得研究者对H在材料中的微观分布与聚集状态有了直观地认识,进而对由氢引起的失效破坏(即氢致延迟断裂的微观机理)有了更深刻的理解。最后还介绍了目前比较常用的检测H浓度的方法。
英文摘要:
      The principles of several detection techniques for hydrogen mapping widely used at present and it’s applications in the study of hydrogen permeation and hydrogen embrittlement were introduced, including atom probe tomography (APT), scanning Kelvin probe force microscopy (SKPFM), secondary ion mass spectroscopy (SIMS) and hydrogen microprinting technique (HMT), as well as thermal desorption mass spectrometry (TDS) technique used for the detection of hydrogen concentration. Then, the principles and characteristics of several detection techniques were summarized and their typical applications in the fields related to hydrogen were introduced briefly. APT and SIMS were used to obtain the hydrogen mapping in materials by directly detecting hydrogen with mass spectrometry. SKPFM got the hydrogen mapping by the surface potential changes induced by hydrogen. The principle of HMT was to characterize the hydrogen mapping through the distribution of Ag atoms on the specimen surface through a substitution reaction (H atom substituted Ag+ with Ag atom). As for thermal desorption technique, the hydrogen concentration at various traps and the bond strength between hydrogen atoms and traps at different sites were characterized by the sensitivity of desorption rates at constant heating rate to various traps. The spatial resolution of these techniques was from sub-nanometer to nanometer, micrometer and several micrometers and even millimeters. In addition, SKPFM had time resolution function. The application of these hydrogen detection techniques gives researchers an intuitive understanding on the microscopic distribution and aggregation state of hydrogen atoms in the material, thus providing a deeper understanding of the microscopic mechanism of hydrogen-induced delayed fracture. Finally, several common methods of detecting H concentration are mentioned.
查看全文  查看/发表评论  下载PDF阅读器
关闭

关于我们 | 联系我们 | 投诉建议 | 隐私保护 | 用户协议

您是第20791347位访问者    渝ICP备15012534号-3

版权所有:《表面技术》编辑部 2014 surface-techj.com, All Rights Reserved

邮编:400039 电话:023-68792193传真:023-68792396 Email: bmjs@surface-techj.com

渝公网安备 50010702501715号