铝板搅拌摩擦加工后原位自生第二相颗粒及焊核区晶粒尺寸
In-Situ Produced Second Phase Particles and Grain Size in Weld Nugget Zone of Aluminum Plate after Friction Stir Processing
摘 要
对1060铝板进行了搅拌摩擦加工(FSP), 通过在加工区添加钛粉的方法原位生成了第二相Al3Ti颗粒, 研究了第二相颗粒的分布及焊核区晶粒尺寸。结果表明: 在焊核区前进侧钛粉的弥散程度随FSP道次的增多而增大, 4道次后基本呈弥散分布, 并与铝反应生成纳米级Al3Ti颗粒, 该颗粒从界面处剥落后仍聚集于钛粉周围; 第二相颗粒有效地限制了晶粒的长大, 其数量较多的区域晶粒较细小, 且在加工后热处理中几乎不发生长大。
原位自生
金属间化合物
第二相颗粒
晶粒
friction stir processing
in-situ produce
intermetallic
second phase particle
grain
Abstract
The friction stir processing (FSP) was performed on 1060-Al plates, and the Ti powders were added into the processing zone to in-situ produce the second phase particles of Al3Ti. The distributions of the second phase particles and the grains in the weld nugget zone were studied. The results show that at the advancing side of the weld nugget zone, the dispersity of Ti powders increased with the FSP passes increase and after 4-pass FSP reached a homogeneous state. Ti powders were reacted with Al and the nano-scale Al3Ti particles were obtained. The particles were peeled off from the interface but still aggregated around Ti powders. The second phase particles can inhibit the grain growth effectively. The more amounts of the second phase particles in the area, the finer grains were obtained and the grains almost did not grow during the heat treatment after processing.
中图分类号 TG146.2 DOI 10.11973/jxgccl201604002
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(51204108); 上海市自然科学基金资助项目(11ZR1418100); 教育部博士点基金资助项目(20120072120120)
收稿日期 2015/1/14
修改稿日期 2016/2/22
网络出版日期
作者单位点击查看
备注陈吉(1989-), 男, 湖北黄冈人, 硕士研究生。
引用该论文: CHEN Ji,DENG Mu-yang,CHEN Ke,ZHANG Lan-ting,SHAN Ai-dang. In-Situ Produced Second Phase Particles and Grain Size in Weld Nugget Zone of Aluminum Plate after Friction Stir Processing[J]. Materials for mechancial engineering, 2016, 40(4): 5～8
陈吉,邓慕阳,陈科,张澜庭,单爱党. 铝板搅拌摩擦加工后原位自生第二相颗粒及焊核区晶粒尺寸[J]. 机械工程材料, 2016, 40(4): 5～8
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【3】宋骁,邢丽,黄春平,等.搅拌摩擦焊工艺参数对2198铝锂合金焊缝成形及接头力学性能的影响［J］.机械工程材料,2012,36(7): 28-31.
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【7】HSU C J,CHANG C Y,KAO P W,et al.Al-Al3Ti nanocomposites produced in situ by friction stir processing［J］.Acta Materialia,2006,54: 5241-5249.
【8】HSU C J,KAO P W,HO N J.Intermetallic-reinforced aluminum matrix composites produced in situ by friction stir processing［J］.Materials Letters,2007,61: 1315-1318.
【9】LEE I S,HSU C J, CHEN C F,et al.Particle-reinforced aluminum matrix composites produced from powder mixtures via friction stir processing［J］.Composites Science and Technology,2011,71: 693-698.
【10】YOU G L,HO N J, KAO P W.The microstructure and mechanical properties of an Al-CuO in-situ composite produced using friction stir processing［J］.Materials Letters,2013,90: 26-29.
【11】SHAFIEI-ZARGHANI A,KASHANI-BOZORG S F,ZAREI-HANZAKI A.Microstructures and mechanical properties of Al/Al2O3 surface nano-composite layer produced by friction stir processing［J］.Materials Science and Engineering: A,2009,500: 84-91.
【12】钱锦文,李京龙,熊江涛,等.搅拌摩擦加工原位反应制备Al3Ti-Al表面复合层［J］.焊接学报,2010,31(8): 61-64.
【13】LEE I S,HSU C J,CHEN C F,et al.Particle-reinforced aluminum matrix composites produced from powder mixtures via friction stir processing［J］.Composites Science and Technology,2011,71: 693-698.
【14】XU L,CUI Y Y,HAO Y L,et al.Growth of intermetallic layer in multi-laminated Ti/Al diffusion couples［J］.Materials Science and Engineering: A,2006,435/436: 638-647.
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