Effects of minor Sr addition on solidified structure and mechanical properties of Mg-Y-Cu alloy reinforced by long period ordered structure
- https://doi.org/10.2991/ic3me-15.2015.12How to use a DOI?
- Sr, Mg-Y-Cu alloy, solidified structure, mechanical properties, long period ordered structure
Solidified structure and mechanical properties of Mg97Y2Cu1 alloy reinforced by long period ordered structure with 0-0.3%wt Sr addition were investigated. The results indicate that the addition of Sr ranging from 0.1% to 0.2%, solidified structure of the alloy refines and homogenizes gradually. When the Sr addition increases to 0.3%, the alloy is over-modified. Mg17Sr2 phase forms in the alloy with the addition of 0.2% and 0.3% Sr. With the increase of Sr addition, supercooling degree and mechanical properties of the alloy increases firstly, and then decreases. After adding 0.2% Sr to the alloy, the supercooling degree increases 6.7 °C in max. Mechanical properties of the alloy with 0.2% Sr addition is the best, the tensile strength and elongation of the alloy reach 215 MPa and 9.19%, which are increased by up to 24% and 58%, respectively, compared with the alloy without Sr addition.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Sen Zhang AU - Quan Zhou AU - Hao Zhang PY - 2015/08 DA - 2015/08 TI - Effects of minor Sr addition on solidified structure and mechanical properties of Mg-Y-Cu alloy reinforced by long period ordered structure BT - Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering PB - Atlantis Press SP - 67 EP - 73 SN - 2352-5401 UR - https://doi.org/10.2991/ic3me-15.2015.12 DO - https://doi.org/10.2991/ic3me-15.2015.12 ID - Zhang2015/08 ER -