Microstructure and mechanical properties of TIG welded joints of high strength and plasticity low density high manganese steel
Low density high manganese Fe-25Mn-8/10Al-1C steel,a new lightweight high alloyed high carbon wear resistant steel,has extraordinary ductility and high tensile strength.This steel also has a larger tendency of cracking and hardening because of high carbon equivalent and aluminum content.The results showed that:the small deformation and good the performance of the joint was obtained due to the suitable welding heat input;minimum hardness value of the weld region,hardness value increased with the increase of the distance from the weld centerline;the hardness value of weld region and HAZ zone increased with the increase of the aluminum content,meanwhile,some strip ferrite is distributed in the austenite matrix of 10Al steel.
low density steelTIG weldingwelded jointmicrostructuremechanical properties
国家科技期刊平台
NSTL
万方数据
维普
