Effect of T5 and T6 Tempers on a Hot-Rolled WE43 Magnesium Alloy

Abstract

The influence of T5 and T6 tempers at 523 K on the mechanical properties and microstructure of hot-rolled WE43 alloy has been studied. The microstructure of the alloy under various conditions was studied using an optical microscope, a transmission electron microscope, and a xray diffractometer. The mechanical properties were measured on a tensile testing system. The results show that the hot-rolled WE43 alloy has a substantially higher hardness and strength improvement than the cast WE43 alloy. The hot-rolled WE43 alloy with a T5 temper showed better properties than the alloy with a T6 temper because both strain hardening and age hardening increased the strength of the alloy. In addition, the size of the precipitates after a T5 temper was smaller than that after a T6 temper. The yield strength of the alloy parallel to the rolling direction was higher than that perpendicular to the rolling direction.

Friction stir additive manufacturing for high structural performance through microstructural control in an Mg based WE43 alloy

“…01 Zr (see Table 5). These are very similar to the Mg 2 Y precipitates reported in the cast, T5, T6 and solutionized states [64][65][66]. However, it is interesting to note that a considerable amount of Zr is also tied up with these intermetallics and has not been reported elsewhere.…”

WE43 and WE43-T5 Mg alloys screws tested in-vitro cellular adhesion and differentiation assay and in-vivo histomorphologic analysis in an ovine model

“…The details of WE43-T5 temper are present in the available literature. 16 The WE43-T5 temper is widely adopted for this alloy because it results in improved fracture toughness, lower strain rate sensitivity and lower corrosion rate. The as-cast and WE43-T5 alloys are commercially available and no additional heat treatment was conducted specifically for the present study.…”

WE43 magnesium alloy – material for challenging applications

“…Cast ingots are generally heattreated at 525 • C for 8 h with subsequent air cooling or quenching into hot water/polymer and aged at temperatures close to 200 • C [6][7][8][9]. Ageing at 250 • C for 16 h [6,9] is the most widespread. The final product in this condition is characterized by a tensile yield strength (TYS) of about 180 MPa and ultimate tensile strength (UTS) of about 260 MPa (Table 1).…”