Effects of Scandium Addition and T7 Heat Treatment on Thermal Stability and Corrosion Properties of A201 Alloy
| Autor: | Chih-Ting Wu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Alloy chemistry.chemical_element 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Corrosion chemistry Mechanics of Materials Phase (matter) 0103 physical sciences Ultimate tensile strength Thermal engineering General Materials Science Thermal stability Scandium Composite material 0210 nano-technology |
| Zdroj: | Journal of Materials Engineering and Performance. 27:304-314 |
| ISSN: | 1544-1024 1059-9495 |
| DOI: | 10.1007/s11665-017-3086-8 |
| Popis: | This study elucidates how scandium addition and T7 heat treatment affects thermal stability and corrosion properties of A201 alloy. The as-cast and the T7 heat-treated specimens were thermally exposed at 300 °C for 120 h to investigate the evolution of the Sc-free and the Sc-containing alloys. The results indicated that adding 0.6 wt.% scandium to A201 alloy could produce Al3Sc, W phase (Al8-5.4Cu6.6-4Sc) and grain refinement, significantly enhancing the hardness and tensile strength in as-cast condition. The as-cast A201 alloy containing Sc also showed the least loss of hardness and strength during thermal exposure at 300 °C. In addition, the presence of W phase weakened the peak hardness and tensile strength of the Sc-containing A201 alloy during T7 heat treatment. Adding Sc to A201 alloy increased corrosion resistance in T7 heat-treated condition, but slightly decreased corrosion resistance in as-cast condition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink