The assessment mechanical properties of structural titanium alloys for their ability to resist embrittlement in uniaxial tension
Keywords:
titanium alloy, embrittlement, toughness, ductility, mechanical stabilityAbstract
Theory on possibility to evaluate mechanical quality of structural titanium alloys as their possibility to resist embrittlement is presented. It is exhibited that characteristic of mechanical stability developed earlier can be used for this purpose. Technique for evaluation of alloys’ quality by the extent of closeness of ductility and mechanical stability to their optimal values at given strength is developed. New “indicator” for quality of structural titanium alloys is offered – this is the measure of quality by the mechanical stability at given strength , which represents their resistibility to embrittlement. Based on interrelation of properties «ductility – strength – mechanical stability», statistically reliable technique for ranking of alloys by the levels of mechanical quality is elaborated. Estimation of the mechanical quality and ranking by this property is executed for several structural titanium alloys.
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