Title of Experiment
Studies of positive muon diffusion and trapping in steels to understand hydrogen embrittlement
Spokesperson(s) for Group
Current Members of Group
Name |
Institution |
Status |
% of research time devoted to experiment |
K.M. Kojima |
TRIUMF |
Research Scientist |
|
N. Nishida |
Tokyo Institute of Technology |
Professor Emeritus |
|
Y. Cai |
SBQMI/TRIUMF |
PDF |
|
Marta-Villa de Toro Sanchez |
U. Edinburgh |
Student (Graduate) |
|
W. Higemoto |
Japan Atomic Energy Agency |
Research Scientist |
|
T.U. Ito |
Japan Atomic Energy Agency |
Research Scientist |
|
Masahiko Morinaga |
Nagoya Industrial Science Research Institute |
Professor Emeritus |
|
Abstract
By using both positive muon spin rotation and the longitudinal spin relaxation method we study the diffusion and trapping of positive muons in dilute alloys containing the principal alloying elements. The influence of positive muon-impurity interaction and the local strain around the impurity on the diffusion and trapping behaviour will be studied. They are compared with the 1st principle calculations. As the positive muon is a light proton, the new knowledge will make a breakthrough in the studies of hydrogen embrittlement of steels and will help metallurgists to develop new high-strength for understanding the hydrogen embrittlement of steels.