Hardness-improvement of titanium using mixture gases
Kittichai Sopunna1* and Somchai Thongtem2
1Department of Physics, Faculty of Science and Technology, Sakon Nakhon Rajabhat University, Sakon Nakhon 47000, Thailand.
2Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
Email: [email protected]