AZ91镁合金脉冲YAG激光双面焊接的组织与性能

材料热处理学报, 2014, 35(9): 95-100.

AZ91镁合金脉冲YAG激光双面焊接的组织与性能

陈连喜 ^1, , 刘英 ^2, , 刘中益 ^3, , 骆顺昌 ^4, , 杨凯 ^5, , 李卫 ^6,

1.暨南大学材料科学与工程系,广东广州 510632

2.暨南大学材料科学与工程系,广东广州 510632

3.暨南大学韶关研究院,广东韶关512027

4.暨南大学材料科学与工程系,广东广州 510632

5.暨南大学材料科学与工程系,广东广州 510632

6.暨南大学材料科学与工程系,广东广州 510632

基金项目: 广东省教育部科技部产学研结合项目(2012B090600030,2011A091000035) 广东省大学生创新创业训练计划(1055913091)

关键词： YAG激光焊接 , AZ91D镁合金 , 显微组织 , 性能

Microstructure and properties of YAG pulse laser double-sided welding for AZ91D Mg alloy

Keywords： YAG laser welding , AZ91D magnesium alloy , microstructure , mechanical property

采用脉冲YAG激光焊接AZ91D镁合金,研究了焊接电流对单面焊焊接厚度的影响与双面焊接接头的组织与性能.结果表明,脉冲YAG激光焊接AZ91D镁合金,可得到无明显缺陷的焊接接头.焊缝区组织显著细化,由过饱和α-Mg固溶体、Al12Mg17相和Al2Mg相组成.焊缝硬度略高于基体;双面焊试样抗拉强度明显高于单面焊,与母材相当;焊缝断口表现为混合断裂.

参考文献

[1]	X. Cao;M. Jahazi;J.P. Immarigeon .A review of laser welding techniques for magnesium alloys[J].Journal of Materials Processing Technology,2006(2):188-204.
[2]	屈伟平,高崧.镁合金的特点及应用现状[J].金属世界,2011(02):10-14.
[3]	Abderrazak K;Ben Salem W;Mhiri H;Lepalec G;Autric M .Modelling of CO2 laser welding of magnesium alloys[J].Optics & Laser Technology,2008(4):581-588.
[4]	刘顺洪,柳家良,刘辉,段元威,权雯雯.AZ91镁合金的YAG脉冲激光焊接[J].激光技术,2010(04):459-462,469.
[5]	Ai-Kazzaz H;Medraj M;Cao X;JahaZi M .Nd : YAG laser welding of aerospace grade ZE41A magnesium alloy: Modeling and experimental investigations[J].Materials Chemistry and Physics,2008(1):61-76.
[6]	Dong Min;Jun Shen;Shiqiang Lai;Jie Chen;Nan Xu;Hui Liu .Effects of heat input on the low power Nd:YAG pulse laser conduction weldability of magnesium alloy AZ61[J].Optics and Lasers in Engineering,2011(1):89-96.
[7]	全亚杰,陈振华,黎梅,俞照辉,龚晓叁.AM60变形镁合金薄板激光焊接接头的组织与性能[J].中国有色金属学报,2007(04):525-529.
[8]	俞照辉,严红革,管正刚,尹绪雨,李颖.激光焊接工艺参数对高强镁合金焊缝成形及裂纹倾向的影响[J].中国有色金属学报,2013(06):1479-1488.
[9]	Padmanaban, G.;Balasubramanian, V. .Optimization of laser beam welding process parameters to attain maximum tensile strength in AZ31B magnesium alloy[J].Optics & Laser Technology,2010(8):1253-1260.
[10]	计遥遥,洪永昌,张武.脉冲激光焊缝凝固特征及组织与硬度关系的研究[J].中国激光,2013(04):81-86.
[11]	Shen, J.;Wen, L.;Li, Y.;Min, D..Effects of welding speed on the microstructures and mechanical properties of laser welded AZ61 magnesium alloy joints[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2013:303-309.
[12]	Coelho RS;Kostka A;Pinto H;Riekehr S;Kocak M;Pyzalla AR .Microstructure and mechanical properties of magnesium alloy AZ31B laser beam welds[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2008(1/2):20-30.
[13]	L. D. Scintilla;L. Tricarico;M. Brandizzi;A. A. Satriano .Nd:YAG laser weldability and mechanical properties of AZ31 magnesium alloy butt joints[J].Journal of Materials Processing Technology,2010(15):2206-2214.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

AZ91镁合金脉冲YAG激光双面焊接的组织与性能

Microstructure and properties of YAG pulse laser double-sided welding for AZ91D Mg alloy

参考文献