|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Solidification Processing of Light Metals and Alloys: An MPMD Symposium in Honor of David StJohn
||Influence of AlN Nanoparticles on Creep Resistance of Elektron21 Alloy Prepared by Intensive Melt Shearing
||Hong Yang, Yuanding Huang, Karl Ulrich Kainer, Norbert Hort, Hajo Dieringa
|On-Site Speaker (Planned)
Elektron21 with additions of 0.14 vol%, 0.28 vol% and 0.56 vol% AlN nanoparticles was fabricated by intensive melt shearing. The creep resistance was investigated under a stress range between 80-140 MPa at a temperature of 240 °C. The morphology of the intermetallics changed with the increase content of AlN nanoparticles. The grain size and volume fraction of intermetallics increased obviously. The creep results indicate that the increment in AlN content can improve the creep performance of Elektron21. The minimum creep rate of Elektron21+ 0.56 vol% AlN is one order of magnitude less than that of the unreinforced alloy. The microstructural analysis shows that the uniform dispersion of nanoparticles and more homogeneous distribution of rare earth-containing intermetallics contribute to the excellent improvement of creep resistance for Elektron21.