Microstructure evolution and mechanical properties of friction stir welded AA6061/rutile composite

被引：9
|
作者：
Prabhu, Subramanya R. [1 ,2 ]
Shettigar, Arun K. [2 ]
Herbert, Mervin A. [1 ]
Rao, Shrikantha S. [1 ]
机构：
[1] Natl Inst Technol Karnataka, Dept Mech Engg, Surathkal, India
[2] Manipal Acad Higher Educ, Manipal Inst Technol, Dept Mechatron Engn, Manipal, India
来源：
MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 08期
关键词：
AA6061/rutile composite; friction stir welding; microstructure; mechanical properties; TOOL PIN PROFILE; STRENGTH; PARAMETERS; ELECTRON; SPEEDS; ZONE;
D O I：
10.1088/2053-1591/ab0f4e
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Present study explores the Friction stir welding (FSW) of rutile reinforced AA6061 matrix composite using various combination of tool traverse speeds (60, 75 and 90 mm min(-1)), rotational speeds (750, 1000 and 1250 rpm) and tool pin profiles (Threaded cylindrical and Square profiled pin). FSW process variables have significant impact in controlling the mechanical properties of the joint by limiting the welding defects. It has been inferred from the study that tool rotational speed and tool traverse speed majorly affects the microstructure, joint quality, hardness and joint strength. The weld area showed the presence of four distinct regions usually found in FSW of aluminium matrix composites. The weld region exhibited fine equiaxed grains and uniformly distributed tiny reinforced rutile particles. Tool having square profiled pin shows improved joint properties in comparison with tool having threaded cylindrical pin.
引用
收藏
页数：10
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