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我们曾用低温形变热处理详细研究了含钕的热强镁合金强化的可能性,这种处理包括淬火、冷变形及随后的人工时效。这种方法可使镁—钕,镁—钕—锰及镁—钕—锰—镍系合金的机械性能获得显著的提高。用热挤压棒材制备的试样测定机械性能。在535℃淬火,保温4小时,水冷。在HM—4P型试验机上进行拉伸冷变形,用同一试验机测定机械性能。人工时效在175℃进行24小时。由图1可以看出,镁—钕—锰合金机械性能随试验温度升高而
We have examined in detail the potentiality of the strengthening of neodymium-containing hot magnesium alloys with cold deformation heat treatment, which includes quenching, cold deformation and subsequent artificial aging. This method leads to a significant improvement in the mechanical properties of magnesium-neodymium, magnesium-neodymium-manganese and magnesium-neodymium-manganese-nickel alloys. Test specimens prepared from hot extruded bars were tested for mechanical properties. Quenched at 535 ℃, heat 4 hours, water-cooled. In the HM-4P-type tensile testing machine cold deformation, with the same test machine mechanical properties. Artificial aging at 175 ° C for 24 hours. As can be seen from Figure 1, the mechanical properties of magnesium-neodymium-manganese alloy with the test temperature increases