Ways to determine reliability in the operation of ship parts made by banding method

In the development of modern shipbuilding conditions and repair ship units, a special role is given to use basic structural elements consisting technological parts. When performing these steps, it important analyze properties materials from which components equipment are made. Testing should be close operating axles shafts, namely cyclic loading, aggressive adhesive environment.
 Therefore, factor control over sequence manufacture, selection materials, surfacing technology. All requirements can analyzed predicted using computer modulation. Investigations transition layers weld base metal their effect on number load cycles in tests also key. will met with optimal chemical component Ni - Cr, provide required level doping. The hardness ensured by presence Mg metal. Also heat treatment modes that desired final structure material for machining surfacing. For this part its elements, best terms operation fine austenitic pearlitic structures.
 During shafts axles, propagation puncture loads performed due occurrence stresses at low-cycle multi-cycle subsequent fatigue lattice.
 considering range used combined structures very large includes most welded steels. According combination one unit, advisable distinguish two main groups structures: joints steels same class, but different alloying, classes. regard, decision obtain balanced bandage connection lies obtaining fine-grained seam area.