本文選題：鋁合金 + CrNiTi不銹鋼��； 參考：《焊接學(xué)報》2017年01期

【摘要】：采用Al-Si-Mg釬料成功實現(xiàn)了5005鋁合金與1Cr18Ni9Ti不銹鋼的真空釬焊,借助掃描電鏡、能譜分析儀和X射線衍射儀對焊后接頭界面組織進行分析,同時對接頭抗剪強度進行測試.結(jié)果表明,焊后接頭界面結(jié)構(gòu)從1Cr18Ni9Ti不銹鋼側(cè)到5005鋁合金側(cè)的界面組織依次為Fe Al,Fe Al3,FemAln+αAl.隨著釬焊溫度的升高或保溫時間的延長,接頭抗剪強度均呈現(xiàn)先升高后降低的變化趨勢.當(dāng)釬焊溫度為580℃,保溫時間為15 min時,接頭抗剪強度達到最大值49 MPa.接頭斷裂形式受釬焊溫度的影響,當(dāng)釬焊溫度較低時,接頭斷裂于鋁合金側(cè)氧化膜層及FemAln+αAl反應(yīng)層;溫度升高至580℃時,接頭斷裂于FemAln+αAl反應(yīng)層中,接頭抗剪強度最高.
[Abstract]:The vacuum brazing of 5005 aluminum alloy and 1Cr18Ni9Ti stainless steel was successfully realized by using Al-Si-Mg solder. The interface microstructure of the joint after welding was analyzed by means of scanning electron microscope, energy spectrum analyzer and X-ray diffractometer, and the shear strength of the joint was tested. The results show that the interfacial structure of the welded joints from 1Cr18Ni9Ti stainless steel side to 5005 aluminum alloy side is in the order of FeAlAlAl3FemAln 偽 Al. With the increase of brazing temperature or the prolongation of holding time, the shear strength of the joint increased first and then decreased. When the brazing temperature is 580 鈩，

本文編號：2086091