Mechanical Properties Related to Microstructural Variation of 6061 Al Alloy Joints by Friction Stir Welding

Lee, Wonbae; Yeon, Yun-Mo; Jung, Seung‐Boo

doi:10.2320/matertrans.45.1700

Cited by 126 publications

(72 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Lee et al (2004) [15]have discussed similar findings during FSW of AZ91 Mg alloy/ SiC particle-reinforced composite where higher rotational speed and lower welding speed resulted inthe higher temperature and lower cooling rate in the weld zones that contributed to easy formation of plasticized metal in a wider range of the weld zone. The penetration of the toolat 1500 rpm (Figure 1e) was much deeper than that at 1140 rpm (Figure 1d)withthe stir zone almost reaching the bottom half of the sample.…”

Section: Resultssupporting

confidence: 54%

Mechanical Properties of Friction Stir Processed 1100 Aluminum Reinforced with Rice Husk Ash Silica at Different Rotational Speeds

Hussain¹,

Halmy²,

Almanar³

et al. 2016

Int J Metall Mater Eng

View full text Add to dashboard Cite

This paper presents a study on friction stir processed 1100 aluminum withincorporation of rice huskash derived, amorphous silica particles and fabricated at different tool rotational speeds. During friction stirring amorphous silica powder was placed into a groove made in the joining line of Al 1100 plates. Friction stirringwas performed with clockwise tool rotational speeds of 600 rpm, 865 rpm, 1140 rpm or 1500 rpm with a constant 45 mm/min travelling speed and a 2° tilt angle. High rotational speed (1140 rpm) facilitated material flow in the stir zone, contributing to fine aluminum matrix grain size (30-10µm) as a result of dynamic recrystallization. Stirring at this rotational speed also caused the fracturingrelated refinement of silica particles to 10µm particle sizethat isassociated with good distribution in the aluminum matrix. Reduction in wear rate of friction stir processed Al1100 with improved hardness was believed to be due to the presence of hard silicawith high interfacial strength and high hardness of recrystallized aluminum grains in the stir zone.

show abstract

Section: Resultssupporting

confidence: 54%

Mechanical Properties of Friction Stir Processed 1100 Aluminum Reinforced with Rice Husk Ash Silica at Different Rotational Speeds

Hussain¹,

Halmy²,

Almanar³

et al. 2016

Int J Metall Mater Eng

View full text Add to dashboard Cite

show abstract

“…In this study, the hardness value of SZs is similar to the hardness of the base material because there is no significant difference between grain size of SZs and grain size of base material (Figure 6(a)). On the other hand, according to some literatures [34][35][36][37] for FSWed aluminum alloy (2000, 6000 series), the hardness of SZs decreased about 20-45% compared with the hardness value of the base material. These results of hardness dropping imply that there is vulnerable to fracture at that location.…”

Section: Mechanical Propertiesmentioning

confidence: 87%

Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium Alloy

Sun

Kim

Lee

et al. 2017

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

In this study, the effect of heat input on the mechanical properties and fracture behaviors of AZ61 magnesium alloy joints has been studied. Magnesium alloy AZ61 plates with thickness of 5 mm were welded at different ratios of tool rotational speed to welding speed ( /]). The average ultimate tensile strength of all weld conditions satisfying a /] ratio of 3 reached 100% of the strength of the base material. Fractures occurred at the interface between the thermomechanical affected zone at advancing side and the stir zone in all welded specimens. From the scanning electron microscope and electron backscatter diffraction analysis, it was determined that the interface between the thermomechanical affected zone and the stir zone, which is the region where the grain orientation changes, was the weakest part; the advancing side region was relatively weaker than the retreating side region because the grain orientation change occurred more dramatically in the advancing side region.

show abstract

“…Friction stir welding achieves solid phase bonding not only by producing severe plastic deformation but also by locally introducing frictional heat [29], and the metal flow mechanism and thermal mechanism of FSW process are strongly coupled. Heat occurs because of friction between shoulder and top surface of the sheets and, to a lesser extent, at the pin surface, which induces the softening of butt material.…”

Section: Brief Review Of Friction Stir Welding (Fsw)mentioning

confidence: 99%

A Review: Effect of Friction Stir Welding on Microstructure and Mechanical Properties of Magnesium Alloys

Qin

Liu

et al. 2017

Metals

View full text Add to dashboard Cite

Friction stir welding (FSW) is well recognized as a very practical technology for joining magnesium alloys. Although, a large amount of progress have been made on the FSW of magnesium alloys, it should be emphasized that many challenges still remain in joining magnesium using FSW. In this article, we briefly review the background of friction stir welding of magnesium alloys, and then focus on the effects of the friction stir welding on the macrostructure, microstructure evolution, texture distribution, and the mechanical properties of the welding joints. The macro-defects in welds and their relationship to the welding parameters such as welding speed, rotation speed, and axial force were also discussed. The review concluded with some suggested methods improvement and future challenges related to FSW of magnesium alloys. The purpose of the present review paper is to fully understand the relationships between the microstructure and the properties, and then establish a global, state-of-the-art FSW of magnesium alloys.

show abstract

Mechanical Properties Related to Microstructural Variation of 6061 Al Alloy Joints by Friction Stir Welding

Cited by 126 publications

References 23 publications

Mechanical Properties of Friction Stir Processed 1100 Aluminum Reinforced with Rice Husk Ash Silica at Different Rotational Speeds

Mechanical Properties of Friction Stir Processed 1100 Aluminum Reinforced with Rice Husk Ash Silica at Different Rotational Speeds

Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium Alloy

A Review: Effect of Friction Stir Welding on Microstructure and Mechanical Properties of Magnesium Alloys

Contact Info

Product

Resources

About