Assessment of the possibility of using RFW for the production of composite joints from steel X10CRNITI18-10

Abstract

An effective way to avoid heat treatment in the production of pipe beams of heat exchange apparatuses is to replace tungsten inert gas (TIG) welding with rotary RFW (RFW), but at the moment there is no information on the characteristics of welded joints of steel X10CRNITI18-10 obtained by RFW. In this article, the possibility of using RFW to obtain composite joints of a changed design was evaluated. To do this, studies were carried out on the structure of the metal, tests for static tension and impact bending of samples of X10CRNITI18-10 steel obtained by RFW.

Investigation of joints from corrosion-resistant steels obtained by energy-saving rotary friction welding technology

“…There are known researches showing the relevance of rotary friction welding as applied to obtaining joints from heat-resistant low-alloyed martensitic steels without thermal operations [8][9][10]. Nonetheless, the impact of rotary friction welding on the composition and characteristics of high-alloy corrosion-resistant austenitic steels, in particular, 10Cr17Ni13Mo2Ti steel, which is used in the manufacture of heat exchangers, has not been studied so far.…”

Evaluation of the effect of welding technology on the operational characteristics of joints

“…In this connection the research of possibilities of refusal from this operation becomes actual. One of the possible ways is to replace arc welding by rotary friction welding [8,9], which is carried out in the solid phase, due to which the metal in the joint zone is not heated to critical temperatures. However, with regard to the studied joint from 10Cr17Ni13Mo2Ti steel, the method of rotary friction welding is not sufficiently studied.…”