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Development of extraordinary high-strength-toughness Mg alloy via combined processes of repeated plastic working and hot extrusion

机译:通过反复进行塑性加工和热挤压相结合的工艺开发非凡的高强度韧性镁合金

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摘要

An extraordinary high-strength-toughness Mg-11.8Gd-1.9Er-0.4Zr (wt%) alloy has been successfully fabricated by 400 cycles of repeated plastic working process followed by hot extrusion. The sample exhibited an ultimate tensile strength of 500 MPa, tensile yield strength of 455 MPa, companying with a failure elongation of 12.0% at room temperature. The significant enhancement in mechanical properties was attributed to the grain refinement, homogeneous β phase and modified texture.
机译:通过400次重复的塑性加工过程以及热挤压,成功制造了一种非凡的高强度韧性Mg-11.8Gd-1.9Er-0.4Zr(wt%)合金。样品的极限拉伸强度为500 MPa,拉伸屈服强度为455 MPa,在室温下的破坏伸长率为12.0%。机械性能的显着提高归因于晶粒细化,均匀的β相和改善的织构。

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