Suppression of discontinuous precipitation in AZ91 by addition of Sn

The effect of Sn addition on aging behavior and mechanical properties of wrought AZ80 magnesium alloy

“…Li et al [16] showed that with an increase in the Sn content, the cellular discontinuous precipitation can be efficiently suppressed such that no discontinuous precipitation is observed when the Sn content is increased to 2 wt.%. Jung et al [17] investigated the effect of Sn (5 wt.%) addition on the aging behavior and found that Sn effectively suppressed the DP and enhanced the density of CP. Same results were found by Liu et al [18] that Sn (with 4 wt.% Sn) accelerated the development of CP-Mg 17 Al 12 phase.…”

A basic study on artificial aging in Mg-10Al12Si+1Pb alloy

“…Jiashi Miao et al the reported majority of Mg 17 Al 12 precipitates in Mg-7Al-2Sn+Ag alloy increase the hardening as a result of aging [56]. In addition, Jung et al by the effect of Sn element added to AZ91 Mg alloy, formation of Mg 17 Al 12 phase increased and hardness value increased by 50% [57]. Su Mi Jo et al reported that the intermetallic phases of Mg 17 Al 12 and Mg 2 Sn increase in the structure of Mg-8Al-2Sn-1Zn alloy and that hardness and yield strength can give higher values [58].…”

Effect of Sn Addition on the Precipitation Behavior in AZ91 Magnesium Alloy

“…11) However, Jung et al have shown that the addition of 5 mass% Sn in AZ91 alloy leads to suppression of the discontinuous precipitation as well as signi cant improvement of peak hardness and strength when aged at 441 K up to 28 h. 12) Therefore, the aim of the present study is to investigate the effect of Sn addition (1, 3 and 5 mass%) on the precipitation behavior of AZ91 alloy. The emphasis was placed on the role of Sn in continuous and discontinuous precipitation behavior in AZ91 alloy.…”