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本文叙述了预处理工艺在研究金属超塑性中的重要性。目前大多数工业铝合金皆仿照７０７５合金、７４７５合金预处理工艺方法进行，故而主要适用于板材超塑性成形。本文重点叙述了ＬＤ１０合金体积成形的超塑性预处理工艺中各个工艺步骤对超塑性的影响。棒材的预处理工艺步骤为固溶、过时效和镦拔。板材的预处理工艺步骤为固溶、过时效和轧制。超塑拉伸试验表明，经预处理的棒状试样，在４６０°Ｃ、ε为３．３３×１０￣－３Ｓ￣－１条件下获最高延伸率，δ为３５７％。经预处理的板状试样在４６０°Ｃ、ε为５×１０￣－３Ｓ￣－１条件下获最高延伸率８２０％。这一指标是现今所知的相近铝合金在最佳超塑拉伸变形条件下的最高值。
This article describes the importance of preconditioning in the study of metal superplasticity. At present, most industrial aluminum alloy are modeled on 7075 alloy, 7475 alloy pretreatment process, and therefore mainly applicable to sheet superplastic forming. This article focuses on the superplasticity of each process step in the LD10 alloy volume forming superplasticity pretreatment process. Bar pretreatment process steps for the solution, over-aging and upsetting. Plate pretreatment process steps for the solution, aging and rolling. Superplastic tensile test showed that the pre-treated rod-shaped sample, at 460 ° C, ε is 3.33 × 10 ~-3S ~ -1 under the conditions of maximum elongation, δ 357%. The pre-treated plate samples at 820 ° C, ε is 5 × 10 ~ -3S ~ -1 under the conditions of the highest elongation of 820%. This indicator is the highest value of the similar superplastic tensile deformation conditions of the similar aluminum alloy known today.