Abstract
The influence of rare-earth elements (Sc, Nd, Y) on the structurization, mechanical properties and heat resistance of a widely used magnesium alloy ML5 was studied. The role of intermetallic phases, formed by doping rare-earth metals of magnesium alloy ML5 was shown. The dependence of the morphology and topology of these phases on the chemical composition of magnesium alloys and their influence on the metal structure and properties was determined. It was shown that alloying of magnesium alloys Sc, Nd and Y reduces the intermetallic phase. It was found that spherical intermetallides of smaller-sized groups had a greater impact on improving the mechanical properties of magnesium alloys, and heat resistance of the alloy was determined by the number of a heat-resistant intermetallic phase. It was found that the ultimate strength of alloy ML5 raises with increasing the content of rare-earth elements up to 1.0 %, and the ductility increases only when the content of elements is in the range of 0.05...0.1 %. Applying rare-earth metals, when smelting magnesium alloy ML5 provides an increased level of mechanical properties and heat resistance of castings, which makes it promising in the development of new machines and units.
Highlights
It was shown that alloying of magnesium alloys Sc
It was found that spherical intermetallides of smaller-sized groups had a greater impact
heat resistance of the alloy was determined by the number of a heat-resistant intermetallic phase
Summary
Снижение массы машин и механизмов является приоритетной задачей для их производителей [1]. Несмотря на это, масса конструкций постоян но возрастает из-за усложнения техники и введения многочисленных дополнительных устройств, повышающих комфорт и безопасность движения [2]. Для разрешения этого противоречия большое внимание уделяется расширению применения литья из магниевых сплавов для узлов и агрегатов, взамен существующим алюминиевым и стальным отливкам. Требования, предъявляемые к магниевым сплавам постоянно растут [3]. Поэтому повышение механических свойств и жаропрочности отливок из магниевых сплавов является актуальной задачей
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Eastern-European Journal of Enterprise Technologies
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
