Effect of heat input on microstructure and properties of hybrid fiber laser-arc weld joints of the 800 MPa hot-rolled Nb-Ti-Mo microalloyed steels

详细信息    查看全文

• 作者：X.-N. Wang^a ; ^{wxn@suda.edu.cn} ; S.-H. Zhang^a ; J. Zhou^a ; M. Zhang^b ; C.-J. Chen^b ; R.D.K. Misra^c
• 关键词：HLAW ; Heat input ; Weld joints ; Microstructure and properties ; Phase transformation
• 刊名：Optics and Lasers in Engineering
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：91
• 期：Complete
• 页码：86-96
• 全文大小：12477 K
• 卷排序：91

文摘

The geometry of fusion zone was changed with heat input decreased. The microstructure in fusion zone was different with heat input increased. The softening did not influence tensile properties with heat input increased. Impact toughness of fusion zone and coarse-grained HAZ was deteriorate. Heat input only affected microstructure of fusion zone and coarse-grained HAZ.