Details

Autor(en) / Beteiligte

• Li, Hong-xiang
• Qin, Shi-kai
• Yang, Chang-lin
• Ma, Ying-zhong
• Wang, Jian
• Liu, Yun-jin
• Zhang, Ji-shan

Titel

Influence of Ca addition on microstructure, mechanical properties and corrosion behavior of Mg-2Zn alloy

Ist Teil von

• China foundry, 2018-09, Vol.15 (5), p.363-371

Ort / Verlag

Singapore: Springer Singapore

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The microstructure, mechanical properties and corrosion behaviors of as-cast ternary Mg-2Zn- x Ca ( x =0, 0.2, 0.4, 0.8) alloys have been investigated in this study. Results indicate that the microstructure of Mg-Zn-Ca alloys can be significantly refined with increasing Ca concentration. Moreover, the alloys with different contents of Ca exhibit the different phases formation behaviors, i.e. α-Mg + Ca 2 Mg 6 Zn 3 phases for Mg-2Zn-0.2Ca and Mg-2Zn-0.4Ca alloys, and α-Mg + Ca 2 Mg 6 Zn 3 + Mg 2 Ca phases for Mg-2Zn-0.8Ca alloy, respectively. Among all the alloys, the maximum ultimate tensile strength and elongation (161 MPa and 9.1%) can be attained for the Mg-2Zn-0.2Ca alloy. Corrosion tests in Hanks’ balanced salt solution indicated that Ca addition is detrimental to corrosion resistance of Mg-2Zn alloy. The relationship between as-cast microstructure and properties for different Ca-containing alloys is also discussed in detail.