AZ91 reinforced with four different concentrations (0,0.3,0.6,1)wt% of WS₂ micro particles were fabricated using stir casting method. The samples were deformed by equal channel angular pressing (ECAP) after homogenization. The scanning electron microscopy and X-ray diffraction were used to investigate the microstructure and phase composition respectively. The results reveal that rod-like precipitates produced during the homogenization process are refined and bounded in the grain boundaries by the combined effect of WS₂ enrichment and increasing number of passes of ECAP. The needle precipitates are eminent in 1pass 0.3 wt%WS₂/AZ91. The β-Mg₁₇Al₁₂ and extracted Al particles are dissolved and secondary phases are produced by dynamic recrystallization after 2pass 1 wt%WS₂/AZ91. The maximum crystallite size and microstrain distribution have been observed for 1pass 0.6 wt%WS₂/AZ91. The mechanical properties investigation represents that 2pass 0.6 wt%WS₂/AZ91 has optimal yield strength and ultimate tensile strength. The (22.143)%, (44.735)% and (92) % increment in yield strength, ultimate tensile strength and elongation have been observed in 2pass 1 wt%WS₂/AZ91 compared with homogenized monolithic AZ91 alloy respectively. The maximum young's modulus (6696.218MPa) has been found for 1pass homogenized WS2/AZ91 and minimum (4108.165MPa) for homogenized 0.6 wt%WS₂/AZ91. The ECAP deformed 1pass 0.3 wt%WS₂/AZ91 exhibits the maximum strain hardening rate. The YTS, UTS, and elongation are (30.41) %, (47.6) % and (51.9)% increased after 2pass-0.6 wt%WS₂/AZ91.

采用搅拌铸造法制备了四种浓度为（0,0.3,0.6,1）wt％的WS ₂微粒增强的AZ91 。均质后，通过等通道角挤压（ECAP）使样品变形。用扫描电子显微镜和X射线衍射分别研究了显微组织和相组成。结果表明，在均质化过程中产生的棒状沉淀物通过WS ₂富集和ECAP通过次数增加的联合作用而细化并限制在晶界内。针状沉淀物以1pass 0.3 wt％WS ₂ / AZ91突出。的β-Mg系₁₇的Al ₁₂然后经过2wt％1 wt％WS ₂ / AZ91的动态重结晶溶解提取的Al颗粒并产生第二相。对于1pass 0.6wt％WS ₂ / AZ91，已经观察到最大的微晶尺寸和微应变分布。力学性能研究表明，2pass 0.6 wt％WS ₂ / AZ91具有最佳屈服强度和极限拉伸强度。与均质的整体AZ91合金相比，在2pass 1 wt％WS ₂ / AZ91中分别观察到屈服强度，极限抗拉强度和伸长率分别增加了（22.143）％，（44.735）％和（92）％。已发现1次均质WS2 / AZ91的最大杨氏模量（6696.218MPa），均质0.6 wt％WS _2的最小杨氏模量（4108.165MPa）/ AZ91。ECAP变形1pass 0.3 wt％WS ₂ / AZ91表现出最大的应变硬化速率。2pass-0.6 wt％WS ₂ / AZ91后，YTS，UTS和伸长率分别增加（30.41）％，（47.6）％和（51.9）％。