For example the japanese shinkansen uses 5083 alloy

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: eresting to note that the advanced trains are still using these similar materials. For example, the Japanese Shinkansen uses 5083 alloy, and also some 7075 material, which is more frequently used as an aerospace material, while the German Transrapid uses 5005 sheet for panels and 6061, 6063, and 6005 for extrusions. Recent Alloy Developments: Some recent research for improved rail materials has been evaluating newer aluminum alloys containing scandium additions.16 Scandium provides the highest amount of strengthening per atom percent of any alloying element when added to aluminum. Small additions (0.1-0.2 wt%) have been shown to improve mechanical properties, refine the microstructures of wrought aluminum alloys, and improve weldability by reducing hot cracking in the weld region. Since all of these factors are relevant to rail applications of aluminum, a study was conducted to establish whether scandium-containing 5xxx, 6xxx, and 7xxx alloys could be used in conjunction with advanced welding technology such as fricti...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online