(中南工業(yè)大學(xué) 材料科學(xué)與工程系， 長沙 410083)
摘 要: 在Gleeble1500熱模擬機(jī)上對6201鋁合金的熱連軋進(jìn)行了實(shí)驗(yàn)?zāi)M， 對變形時的變形力進(jìn)行了測定，用TEM觀察了變形后試樣的微觀組織并測量了其顯微硬度。 結(jié)果發(fā)現(xiàn)： 由于應(yīng)變誘發(fā)作用， 可以在熱連軋過程中有效地實(shí)現(xiàn)快速固溶與時效處理的結(jié)合；變形開始溫度為540℃， 可加速固溶； 變形終了溫度為300 ℃，加速了Mg2Si粒子的充分析出； 變形抗力和硬度值在第6道次之前，隨著道次增多而增加，之后有所回落。 此外， 實(shí)驗(yàn)還獲得了6201鋁合金熱連軋的變形抗力模型。
關(guān)鍵字: 6201鋁合金； 熱連軋； 熱模擬
（Department of Materials Science and Engineering,Central South University of Technology, Changsha 410083, P.R.China）
Abstract:Continuous hotrolling of 6201 aluminum alloy was simulated on Gleeble1500. The deformed specimens were observed by TEM and the hardness was measured. It was shown that rapid solid solution and aging treatment can be effectively combined by the strain induced during continuous hotrolling, the deformation temperature ranges from 540℃ to 300 ℃, the hardness and the deformation resistance increase with increasing passes before 6 passes followed by a slight drop.
Key words: 6201 aluminum alloy; continuous hotrolling;thermal simulation
