DETECTION METHOD OF IMPURITIES OF TITANIUM ALLOYS OF TWO-PHASE TYPE WITH ALPHA-PHASE AND BETA-PHASE

摘要

FIELD: metallurgy.;SUBSTANCE: invention relates to investigation of titanium alloys. The proposed method involves the following stages: (a) a specimen is cut from a part made from the above alloy; (b) the cut surface area of the above specimen near the edge of the above specimen is prepared; with that, the above edge is common to the outer surface of the part so that it can be possible to investigate the above cut surface area; (c) alpha-phase of this area is investigated at more than 5000-time magnification; (d) a decision is taken on whether there is or there is not any granularity in the alpha-phase of the first zone adjacent to the above edge of the specimen; (e) a conclusion is made on existence of contamination of the above alloy with gas if presence of granularity in the alpha-phase of the above adjacent zone is defined, but granularity (grains) is (are) present in the alpha-phase beyond the above adjacent zone.;EFFECT: achieving improvement of investigation accuracy and reliability.;5 cl, 8 dwg