Study on microstructure and mechanical properties of ZL107 alloy added with yttrium

Yu, Sirong; Jin, Yanzhu; Xiong, Wei; Liu, Yan

doi:10.1016/s1002-0721(12)60258-0

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…This phenomenon restricts the growth of α-Al grains and leads to a strong constitutional undercooling that promotes the nucleation of grains [11,12]. On the other hand, rare earth Y may react with O and Al 2 O 3 to produce Y 2 O 3 according to Yu et al [8]. The lattice structure of Y 2 O 3 was similar to the lattice of the α-Al phases.…”

Section: Effects Of Y Addition On the α-Al Phasesmentioning

confidence: 99%

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Effect of Trace Yttrium Addition and Heat Treatment on the Microstructure and Mechanical Properties of As-Cast ADC12 Aluminum Alloy

Liu

Yan

et al. 2018

Applied Sciences

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The effects of rare earth yttrium (Y) additions and the heat treatment process on the microstructure and mechanical properties of as-cast ADC12 aluminum alloy have been investigated. The results showed that the primary Si crystals were significantly refined from long axis to fibrous or granular when the Y content was 0.2 wt%. Compared to the matrix, the mean area and aspect ratio were decreased by 92% and 75%, respectively. Moreover, the Si and Fe-rich phases were spheroidized and refined with a small average size during the solid solution. It was also noted that the copper-rich phases were dissolved into the matrix. Correspondingly, it was found that after metamorphic and heat treatment the ultimate tensile strength (UTS), elongation, and, hardness increased by 81.9%, 69.7%, and 74.8%, respectively, compared to the matrix. The improved mechanical properties can primarily be attributed to the optimization of the microstructure and the refinement of various phases.

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Section: Effects Of Y Addition On the α-Al Phasesmentioning

confidence: 99%

“…Zhang et al [6] found that the grains of an Al-Zn-Mg-Cu-Zr alloy were significantly refined by adding a mix of rare earth elements (Gd and Y). Several researchers [7,8] demonstrated that the rare earth Y has an excellent refining effect on Si and iron-rich phases while also reducing alloy defects.…”

Section: Introductionmentioning

confidence: 99%

Effect of Trace Yttrium Addition and Heat Treatment on the Microstructure and Mechanical Properties of As-Cast ADC12 Aluminum Alloy

Liu

Yan

et al. 2018

Applied Sciences

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“…Wu et al [23] found that Sr and Ce modification could not only modify and refine Al-Si alloys but also enhance the modification capability of Sr According to literature reports, Y can decrease the size of α-Al dendrite grains [24], and change Si phase from acicular to short rod-shaped [25]. It is important that the number and size of the blowholes shrank noticeably after adding Y into the Al-Si alloy [26]. Dong et al [27] investigated the effects of a Sr-Y composite modifier on the microstructure of A356 alloy, and the results showed that the Si phase in Sr-Y compositemodified A356 alloys at the time of casting was in the form of grains or flakes, and no large flakes of eutectic Si were detected, and the roundness and homogeneity of the particles of Si crystals were significantly improved after the T6 heat treatment.…”

Section: Introductionmentioning

confidence: 99%

Effect of Al-Sr-Y intermediate alloy on microstructure and mechanical properties of A356 alloy

Huang,

Li,

Yuan

et al. 2024

Mater. Res. Express

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In this experiment, an intermediate alloy (Al-3Sr-8Y) that can refine and modify A356 alloy simultaneously was developed, and the synergistic effect of Sr and Y on the microstructure and mechanical properties of A356 alloy was investigated. The results show that when the content of Al-3Sr-8Y intermediate alloy reaches 0.3 wt.%, the morphology of α-Al dendrites is significantly refined and the secondary dendrite arm spacing (SDAS) was significantly reduced. Moreover, the morphology of eutectic Si transforms from acicular to small fibrous, and the average area and aspect ratio of eutectic Si decrease to 0.81 μm2, and 2.01. This change is caused by the twin plane re-entrant edge (TPRE) poisoning mechanism, where the addition of Al-3Sr-8Y can poison the intrinsic growth position of the Si phase, reduce the growth rate of the Si phase, promote isotropic growth, and achieve a highly branched morphology of the Si phase to form a fibrous structure. Due to the excellent synergistic effect of Sr and Y, the tensile strength and elongation of the alloy reached the maximum values of 303.5 MPa and 9.5% when 0.3 wt.% Al-3Sr-8Y was added after heat treatment, which is an increase of 18.2% and 86.3% compared with the untreated A356 alloy, respectively.

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“…From the perspective of industrial application, the utilization of chemical modifiers into Al-Si alloys is one of the most practical methods owing to its effectiveness and simplicity. In the literatures, many investigations have been performed to examine the influences of rare earth elements on the Si morphology and size, and related effects on the mechanical properties in Al-Si alloys, i.e., Ce [15,16], Eu [17], Er [18 -23], La [24,25], Sc [26,27], Y [28] and Yb [29]. For example, Han et al [18] studied the effect of Er on eutectic Si and tensile strengths at room temperature (RT) of Al-8Si alloy.…”

Section: Introduction mentioning

confidence: 99%

Effect of Er Addition on the High Temperature Strength of Al-Si-Cu-Ni-Mg-Fe Piston Alloys

Li¹,

Xia²,

Wu³

et al. 2019

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In this study, the dependence of Er addition (0-0.49 wt %) on the microstructural evolution and related tensile strength at high temperature (HT) were investigated for the eutectic Al-Si piston alloys. The results showed there were intermetallic compounds of -Al3CuNi, -Al7Cu4Ni, Al4Cu2Mg8Si7, β-AlFeSi and Al3(Er, Cu, Fe) (Ni, Si) 2 identified at T5 states. Herein, the added Er element has led to the formation of the star-like and the irregular-shaped Al3(Er, Cu, Fe) (Ni, Si) 2 phase. The phase was stable which showed little change in both size and composition experienced solid solution at HT during the T6 treatment. For the HT strengths (350 oC), the T5 state alloys have higher UTSs than those at T6 state, both of which were reduced gradually with the increasing Er contents. The variation of HT strengths caused by the Er addition was explained by the microstructral evolution, namely Al3(Er, Cu, Fe) (Ni, Si)2 phase formation

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Study on microstructure and mechanical properties of ZL107 alloy added with yttrium

Cited by 8 publications

References 5 publications

Effect of Trace Yttrium Addition and Heat Treatment on the Microstructure and Mechanical Properties of As-Cast ADC12 Aluminum Alloy

Effect of Trace Yttrium Addition and Heat Treatment on the Microstructure and Mechanical Properties of As-Cast ADC12 Aluminum Alloy

Effect of Al-Sr-Y intermediate alloy on microstructure and mechanical properties of A356 alloy

Effect of Er Addition on the High Temperature Strength of Al-Si-Cu-Ni-Mg-Fe Piston Alloys

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