PSI - Issue 23

Jaroslav Čapek et al. / Procedia Structural Integrity 23 (2019) 3 –8 Jaroslav Čapek et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 1: Microstructure of the as-cast alloys. a) ZnMg0.8Ca0.2 (LM), b) ZnMg0.8Sr0.2 (LM), c) detail of an eutectic mixture containing SrZn 13 particles (SEM) and d) TEM picture of an eutectic containing SrZn 13 particles.

Table 2: Selected mechanical properties of both studied alloys in the as-cast and annealed states. Alloy CYS (MPa) HV 1 ZnMg0.8Ca0.2_as-cast 192±10 73±6 ZnMg0.8Sr0.2_as-cast 193±6 88±3 ZnMg0.8Ca0.2_4 h annealed – 100±6 ZnMg0.8Sr0.2_4 h annealed – 96±3 ZnMg0.8Ca0.2_24 h annealed 335±24 102±5 ZnMg0.8Sr0.2_24 h annealed 235±20 100±3