随铝含量增加单相奥氏体区变小变无，液化温度降低，热加工性能恶化。
With Al content increasing, Uniphase austenite area decreases or disappears, the liquefaction temperature becomes low, and hot-workability worsens.
采用热模拟试验方法探讨了灰口铸铁焊接接头热影响区的奥氏体区组织对接头性能的影响。
The use of cast steel enables a designer to take such steps as simplifying the structural connections and avoiding difficult welding requirements.
对不同温度下变形和变形后再加热到奥氏体区的低碳钢SS40 0的显微组织进行了研究。
The microstructure of low carbon steel SS400 deformed at different temperatures and reheated to austenite region after deformation was studied.
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