2015
DOI: 10.1016/j.jmrt.2014.10.017
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Effect of Al–5Ti–1B grain refiner on the microstructure, mechanical properties and acoustic emission characteristics of Al5052 aluminium alloy

Abstract: j m a t e r r e s t e c h n o l . 2 0 1 5;4(2):171-179 w w w . j m r t . c o m . b r Microstructure Tensile strength Grain refinement Mechanical properties Acoustic emission a b s t r a c t In the present investigation, the effect of Al-5Ti-1B grain refiner on the microstructure, mechanical properties and acoustic emission characteristics of Al 5052 aluminium alloy have been studied. Microstructural analysis showed the presence of primary ␣ solid solution.No Al-Mg phase was found to be formed due to the presen… Show more

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Cited by 44 publications
(10 citation statements)
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“…The experiments used a 0.2% Al–5Ti–1B ternary master alloy, which is commonly adopted as a grain refiner for most aluminium alloys [30,31]. Using the same alloy section as in Figure 6, grain sizes of the base alloy are shown in Figure 7a and the reduction caused by ultrasound shown in Figure 7b.…”
Section: Experimental Methodsmentioning
confidence: 99%
“…The experiments used a 0.2% Al–5Ti–1B ternary master alloy, which is commonly adopted as a grain refiner for most aluminium alloys [30,31]. Using the same alloy section as in Figure 6, grain sizes of the base alloy are shown in Figure 7a and the reduction caused by ultrasound shown in Figure 7b.…”
Section: Experimental Methodsmentioning
confidence: 99%
“…At room temperature, the compressive yield strength of (σ 0.2 ) for the reference and the modified alloy was 213 ± 7 MPa and 300 ± 10 MPa, respectively. The improvement in the compressive yield in the modified alloy with Ti-B can be attributed to the refined structure, which increased the boundaries of the grains and acted as a barrier for the dislocation movements (Pattnaik et al, 2015). The ultimate compressive strength (CUS) value of the modified alloy reached 510 MPa at room temperature.…”
Section: Mechanical Propertiesmentioning
confidence: 97%
“…[25,29] The addition of TiB 2 grain refiner modifies the microstructures of the SEED-processed 7075-0.03 pct Ti alloy. [30] Therefore, the a-Al grains appear smaller and evidently more globular compared to 7075 base alloy (Figures 1(e) through (g)). For 7075-0.03 pct Ti alloy, in the case of 0.45 to 0.55 solid contents, the average grain size slightly increases from 94 ± 7 to 96 ± 9 lm.…”
Section: Methodsmentioning
confidence: 94%