Influence of gas content on impact toughness of deposited metal of martensitic stainless steel;

Effects of nonmetallic inclusions on acicular ferrite nucleation in deposited metals of microalloyed steel;

Research of M-A component in 9%Cr-1%Mo deposited metal;

According to the introduction of the manufacture process feature of flux-cored wires and the good performances exhibited by the deposit metal,the current questions on the popularization and application of flux-cored wires were analyzed,as well as the applied methods of flux-cored wires for manual welding.

Cracks often occurs because of poor ductility when test intergranular corrosion on 316L weld metal, which impact the test course and result seriously.

Through the addition of rare earth oxides La2O3 and CeO2 in the electrode covering,their effects on high temperature sulphidation resistance of the weld metal were tested.

The wire for high strength and toughness pipeline steel submerged arc welding is developed in this paper,the deposited metals obtained by matching SJ101 and SJ102 type flux,has not only high strength( σ s≥540MPa) and also has high low temperature toughness ( A KV 10 ℃ ≥120 J).

The effects of impurity elements(S, P, O, N) on the low temperature toughness of deposited metals were studied with this model.

The microstructure and the microhardness profile of the deposited metals in as-welded and heat treatment were analyzed.