鋁和不銹鋼FSW對搭接接頭界面結構及性能研究
發(fā)布時間:2018-09-10 18:13
【摘要】:采用攪拌摩擦焊接方法,設計了基于"差高-偏置"的對搭接接頭,對厚度為4mm的5A06鋁合金和厚度為2mm的316L不銹鋼進行了攪拌摩擦焊接(Friction stir welding,FSW)焊接試驗。通過觀察焊縫金相形貌發(fā)現(xiàn),焊接界面光滑平整,沒有形成Hook鉤,在焊縫靠近界面位置形成了鋼顆粒增強鋁基復合組織和河流狀花樣組織結構。通過SEM觀察,鋁-鋼之間形成了一層厚度約為3μm的中間過渡層。顯微硬度及拉伸測試結果表明,過渡層的顯微硬度較高,接頭的拉伸強度達到了鋁合金母材強度的89.7%。
[Abstract]:Friction stir welding (FSW) method was used to design a pair lap joint based on "differential high bias". The 5A06 aluminum alloy with thickness of 4mm and stainless steel 316L with thickness of 2mm were welded by friction stir welding (Friction stir welding,FSW). By observing the metallographic morphology of the weld, it was found that the interface of the weld was smooth and smooth, and no Hook hook was formed. The steel particle reinforced aluminum matrix composite structure and fluvial pattern structure were formed near the interface of the weld. An intermediate layer of about 3 渭 m thickness was formed between aluminum and steel by SEM. The results of microhardness and tensile test show that the microhardness of the transition layer is high, and the tensile strength of the joint reaches 89.7 of the strength of the aluminum alloy base metal.
【作者單位】: 南京航空航天大學材料科學與技術學院;
【基金】:國家自然科學基金(51475232)資助項目 江蘇高校優(yōu)勢學科建設工程(PAPD)資助項目
【分類號】:TG453.9
[Abstract]:Friction stir welding (FSW) method was used to design a pair lap joint based on "differential high bias". The 5A06 aluminum alloy with thickness of 4mm and stainless steel 316L with thickness of 2mm were welded by friction stir welding (Friction stir welding,FSW). By observing the metallographic morphology of the weld, it was found that the interface of the weld was smooth and smooth, and no Hook hook was formed. The steel particle reinforced aluminum matrix composite structure and fluvial pattern structure were formed near the interface of the weld. An intermediate layer of about 3 渭 m thickness was formed between aluminum and steel by SEM. The results of microhardness and tensile test show that the microhardness of the transition layer is high, and the tensile strength of the joint reaches 89.7 of the strength of the aluminum alloy base metal.
【作者單位】: 南京航空航天大學材料科學與技術學院;
【基金】:國家自然科學基金(51475232)資助項目 江蘇高校優(yōu)勢學科建設工程(PAPD)資助項目
【分類號】:TG453.9
【參考文獻】
相關期刊論文 前5條
1 邢麗;柯黎明;黃春平;;鋁合金與鋼的攪拌摩擦焊焊縫成形及接頭性能[J];焊接學報;2007年01期
2 王希靖;申志康;張忠科;;鋁和鍍鋅鋼板的攪拌摩擦焊搭接分析[J];焊接學報;2011年12期
3 郭訓忠;陶杰;孫顯俊;張立伍;;爆炸焊接316L不銹鋼/Al復合管的界面及性能研究[J];南京航空航天大學學報;2010年05期
4 姚磊;沈以赴;李博;胡偉葉;;Cu/Ti異種金屬攪拌摩擦焊搭接接頭組織與性能[J];焊接學報;2014年02期
5 邵青;何宇廷;張騰;馮宇;;平板焊接變形對鋁合金攪拌摩擦焊加筋板軸壓穩(wěn)定性能的影響[J];南京航空航天大學學報;2014年06期
【共引文獻】
相關期刊論文 前10條
1 陳偉;朱協(xié)彬;孫坤;張孟;汪冰峰;;TA2/NiCr爆炸復合棒界面組織及性能研究[J];安徽工程大學學報;2013年02期
2 王丙軍;康博;朱西偉;葛繼平;;鋁合金攪拌摩擦焊異種焊接頭的顯微組織和力學性能[J];電焊機;2013年09期
3 熊金平;趙藝閣;周勇;黃若愚;;鋁合金表面氧化膜去除方法研究進展[J];電鍍與精飾;2013年11期
4 郁炎;張建欣;李士凱;;國內(nèi)外異種材料攪拌摩擦焊的研究現(xiàn)狀及發(fā)展趨勢[J];兵器材料科學與工程;2013年06期
5 黃健康;邵玲;石s,
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