COMPARATIVE MECHANICAL AND METALLOGRAPHIC INVESTIGATIONS OF WELDED COMPOUNDS WITH HIGH-STRENGTH TITANIUM ALLOYS OBTAINED BY METHOD OF TIG AND EBW

• Main Authors: Олексій Вікторович Федосов, Олена Володимирівна Карпович
• Format: Article
• Language: English
• Published: National Aerospace University «Kharkiv Aviation Institute» 2017-11-01
• Series: Авіаційно-космічна техніка та технологія
• Subjects: металографічні дослідження; електронно-променеве зварювання; високоміцні титанові сплави; макроструктура; мікротвердість; зона термічного впливу
• Online Access: http://nti.khai.edu/ojs/index.php/aktt/article/view/511

The paper presents the results of mechanical and metallographic studies of the welded joints structure of the high-strength titanium alloys 20-30 mm width. In the paper is shown that with TIG and EBW welding of high-strength titanium alloys, there is a tendency to form defects in the weld metal. The results of metal chemical composition are shown in the paper as well thermal influence, micro- and macrostructure of welded joints and the measurement of hardness are presented. Recommendations are developed, which in a great degree exclude the appearance of defects in welded joints and increase their performance characteristics.