Texture and anisotropy of yield strength in multistep isothermally forged Mg-5.8Zn-0.65Zr alloy

17th International Conference on Textures of Materials

材料科学;物理学

Nugmanov, D.R.^1 ; Sitdikov, O. Sh^1 ; Markushev, M.V.^1

IMSP RAS, Ufa, Russia^1

关键词: Alloy strength;    Isothermal forging;    Multi-step;    Single peak;    Total strain;    Zr alloys;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/82/1/012099/pdf
DOI  :  10.1088/1757-899X/82/1/012099

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The effect of multistep isothermal forging (MIF) on microstructure, texture and anisotropy of ambient temperature yield strength of MA14 (Mg-5.8Mg-0.65Zr (%, wt)) magnesium alloy hot-pressed rod was analyzed. It has been found that the initial axial texture is quite stable under 1st MIF step up to strain e∼4.2 at 400°C and has been gradually transformed into much weaker single-peak one at further processing at 300 and 200°C to total strain of 10.2. Such texture changes were accompanied by strong grain refinement, along with significant reduction of the alloy strength anisotropy.