2019
DOI: 10.1016/j.surfcoat.2019.04.010
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Abstract: This report describes the effect of the ball-burnishing process on the mechanical properties of 2050 aluminium alloy that was previously friction stir welded. This process is a fast, environmentally-friendly and cost-effective surface treatment based on the plastic deformation of the surface irregularities. Consequently, residual stress, material hardening and micro-structural alterations are investigated to improve fatigue strength and wear resistance. The results show that the ball-burnishing treatment enhan… Show more

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Cited by 54 publications
(15 citation statements)
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“…The severe plastic deformation during friction stir welding is the main cause of alteration in grain size and morphology [16][17][18]. The sub-grain scale analysis of microstructure can elucidate the relationship between the microstructure and the thermomechanical nature of the FSW process, especially shearing and heat generation [19].…”
Section: Introductionmentioning
confidence: 99%
“…The severe plastic deformation during friction stir welding is the main cause of alteration in grain size and morphology [16][17][18]. The sub-grain scale analysis of microstructure can elucidate the relationship between the microstructure and the thermomechanical nature of the FSW process, especially shearing and heat generation [19].…”
Section: Introductionmentioning
confidence: 99%
“…As a result, the grain structure and hardening precipitates are not uniform in different zones, leading to the loss of mechanical properties after FSW. Although the mechanical properties of FSW joints can be improved the post-weld heat treatment and the post-weld burnishing [19][20][21], the adjustment of welding parameters is also an effective way. It is known that the microstructure and mechanical properties of FSW joints are affected by some parameters such as tool travel speeds, tool rotational speeds, tool tilt, etc.…”
Section: Introductionmentioning
confidence: 99%
“…In order to study the microstructural characteristics in different zones of the RFSSW joint in detail, the RFSSW joint was divided into four microstructure zones, i.e., base material zone (BMZ), stir zone (SZ), thermo-mechanically affected zone (TMAZ), and heat-affected zone (HAZ), according to the previous studies on FSSW [16][17][18][19]. The different zones are marked in Figure 3.…”
Section: Microstructural Characteristicsmentioning
confidence: 99%