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Effect of waxing on the properties of Al-1Mg P/M alloy

机译:上蜡对Al-1Mg P / M合金性能的影响

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In the current work, 1 wt% Acrawax was premixed with the aluminium and magnesium powder as a lubricant for the first group samples. However, no wax was used for the second group specimens. As a sintering aid, 1 wt% Mg was added for both group materials. Compaction of the specimens was performed using a manual Carver hydraulic press and a floating rectangular die. First group specimens were pressed to green densities of 91.5 and 92.5% using pressures of 435 and 490 MPa, respectively. In the second group (no wax) samples, 93% green density was obtained using the similar compaction pressures. These conditions produced specimens whose dimensions were: 31.8 × 12.7 × 3.5 mm3. As a result, an increase has been seen on the density of sintered and green compacts with rising compacting pressure. Furthermore, addition of the wax negatively affected the transverse rupture strength of the alloy.
机译:在当前工作中,将1 wt%的Acrawax与铝和镁粉预混合,作为第一组样品的润滑剂。但是,第二组样品未使用蜡。作为烧结助剂,两种组材料均添加了1重量%的Mg。使用手动Carver液压机和浮动矩形模具对样品进行压实。第一组样品分别使用435和490 MPa的压力压至生坯密度为91.5和92.5%。在第二组(无蜡)样品中,使用相似的压实压力可获得93%的生坯密度。这些条件产生了尺寸为:31.8×的标本。 12.7× 3.5毫米3。结果,随着压紧压力的增加,烧结和生压坯的密度增加。此外,蜡的添加不利地影响了合金的横向断裂强度。

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