1. ASM Handbook;Lienert,2011
2. Pressures produced by gas tungsten arcs;Lin;Metall. Trans. B,1986
3. Factors affecting variable weld penetration;Mills;Int. Mater. Rev.,1990
4. A study of arc force, pool depression, and weld penetration during gas tungsten arc welding;Rokhlin;Weld. J.,1993
5. Welding Metallurgy;Kou,2003