Explosive cladding of the inner side of a steel tube with a heat-resistant niobium alloy

Resumo

The obtaining of double layer cylindrical blanks with a combination of layers of a heat-resistant niobium alloy N65V2MTs + a high-strength steel OKhN3M is studied. A cladding technique with the N65V2MTs alloy inside of a cylindrical surface of the steel OKhN3M is developed and the prototypes with 100% integrity of the layers on the entire length of the blanks are produced. A microanalysis of the welding zone of the layers shows the need for optimization of the explosive welding to reduce the thickness of the transition zone and to create a more even waveform of the welding zone.