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Abstract: Mechanical properties of Virgo104 casting steel and its
welds with two kinds of MIG wires and one covered electrode are
investigated. The results indicate that mechanical properties at the
center of tested piece of Virgo104 steel are same as that of the
surface, and having an excellent combina- tion of tension strength and
ductility. The high impact tou- ghness at low temperature, especially
the higher Wp/Wi (~3.0) ratio and lateral expansion (~15%) of Virgo104
show its excellent resistance to brittle fracture. The weld metal and
welded joints show good comprehensive mechanical prope- rties, and
especially the weld metal with HS367L MIG wire compared with other
welding consumables, shows higher ductility on welded condition, which
indicates the higher resistance to welding cold cracking.
Key words: Casting steel MIG Mechanical properties
CLC No: TG407
选自2000年第一届国际机械工程学术会议, 20011024
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