Effects of erbium modification on the microstructure and mechanical properties of A356 aluminum alloys

Shi, Zhiming; Wang, Q.; Zhao, Guoqing; Zhang, R.Y.

doi:10.1016/j.msea.2014.12.062

Cited by 106 publications

(72 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The similar phenomenon was also identified when Er was added in A356 alloy, as shown by Shi et al [22]. Especially, in the case of using Sr as a modifier, the excess RE would react with Sr to form RE-Sr containing intermetallic phase with a size of approximately 50 lm, affecting the modification effect of eutectic Si, as evidenced by Fig.…”

Section: Discussionsupporting

confidence: 75%

Cooling Rate Sensitivity of RE-Containing Grain Refiner and Its Impact on the Microstructure and Mechanical Properties of A356 Alloy

Zhang

Liu

et al. 2016

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

The cooling rate sensitivities of AlTiB, RE and AlTiB-RE refiners were investigated using laboratory experiments and the actual industrial applications of A356 automotive wheel via low pressure die casting technology. Their impact mechanisms on the microstructure and mechanical properties of the A356 alloy were discussed. The results demonstrated that the AlTiB-RE refiner possessed most effective and synergetic refinement effects compared to the individual AlTiB or RE refiners. The AlTiB-RE refiner exhibited the least sensitivity to the cooling rate changes than the other refiners. The comprehensive properties of alloy wheel refined by the AlTiB-RE refiner were improved significantly. The tensile strength, yield strength, and elongation of wheel spoke improved by approximately 11.3%, 10.8% and 44.1%, respectively. The property difference values of the tensile strength, yield strength, and elongation in different positions of the wheel decreased from 14.8%, 31.2% and 47.7% to 8.6%, 27.1% and 30.9%, respectively.

show abstract

Section: Discussionsupporting

confidence: 75%

Cooling Rate Sensitivity of RE-Containing Grain Refiner and Its Impact on the Microstructure and Mechanical Properties of A356 Alloy

Zhang

Liu

et al. 2016

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

show abstract

“…In the recent years of research studies the effect of low additions of erbium on the properties and microstructure of aluminum and its alloys has been intense [1][2][3][4][5][6][7][8][9][10]. The typical content of erbium in wrought and aluminium cast alloys are varies from 0.01 to 1.0 mass %, but preferably 0.1-0.3 mass % [11].…”

Section: Introductionmentioning

confidence: 99%

“…Currently, Al-Er master alloys are prepared by direct alloying aluminium with erbium, respectively [6,8,9,12]. In its pure form, Er has a high melting point, which leads to losses of the alloying element and the base during melting and significant contaminate of master alloys by non-metallic impurities.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Novel Al-Er Master Alloys in Chloride-Fluoride Melt

Kosov

Bazhin

2018

MSF

View full text Add to dashboard Cite

Abstract. A novel Al-Er master alloy has been prepared through situ metallothermic reactions of NaErF 4 and aluminium melts. The compound NaErF 4 is formed as a result of the interaction of NaF and ErF 3 in the melt medium KCl. The metallothermic reactions produce erbium, which through low solubility in molten aluminium and forms intermetallic compound Al 3 Er. The microstructures of the Al-Er master alloy with different contents of the alloying metal has been investigated. The results showed that the Al-Er master alloy mainly consisted of phases of α-Al and Al 3 Er, that confirmed by the results of X-ray diffraction. Backscattered electron imaging of the Al-Er master alloy under a scanning electron microscope (SEM) revealed the presence of phase Al 3 Er, which crystallized in the eutectic composition [Al+Al 3 Er]. The observed microstructure is explained according to the eutectic reaction in an Al-Er phase diagram. The preparation of Al-Er master alloy by the metallothermic reduction method will allow to reduce energy consumption for master alloy production and to reduce the cost of aluminium alloys alloyed with Er through the novel master alloy.

show abstract

“…[12][13][14] Recently, the slurry course of aluminum alloys with better mechanical properties compared to parts made by conventional casting had been used for the fabrication of parts without mold molding method and attracted the attentions of scholar, using the merit of semisolid slurry forming processing. [15][16][17] SRCM is a pioneering metal processing technology. The finished liquid metal is pressed out from the outlet of base of crucible with a horizontal movable plate assembled near the outlet.…”

Section: Introductionmentioning

confidence: 99%

Effect of the pouring temperature by novel synchronous rolling-casting for metal on microstructure and properties of ZLl04 alloy

Luo

Yan

2016

J. Mater. Res.

View full text Add to dashboard Cite

A novel synchronous rolling-casting for metal (SRCM) process for producing metal components is developed. In this paper, the microstructure evolution and mechanical property of ZLl04 alloy with different pouring temperatures by SRCM are investigated. In the process, the pouring temperature has great effects on the microstructure and mechanical property primarily through the crystal change in the rolling-casting area. Temperature of liquids and solids of ZL104 alloy is measured by differential scanning calorimetry. Distribution and characteristics of the microstructure of samples are examined by optical microscopy, scanning electron microscopy equipped with energy dispersive spectrometer. The results show that the samples fabricated by SRCM present uniform structure and good performance with the pouring temperature at 620°C when the velocity of the substrate is at 10 cm/s. The tensile strength of ZLl04 alloy reaches 211.89 Mpa, while the average vickers hardness is 81.5 HV.

show abstract

Effects of erbium modification on the microstructure and mechanical properties of A356 aluminum alloys

Cited by 106 publications

References 29 publications

Cooling Rate Sensitivity of RE-Containing Grain Refiner and Its Impact on the Microstructure and Mechanical Properties of A356 Alloy

Cooling Rate Sensitivity of RE-Containing Grain Refiner and Its Impact on the Microstructure and Mechanical Properties of A356 Alloy

Preparation of Novel Al-Er Master Alloys in Chloride-Fluoride Melt

Effect of the pouring temperature by novel synchronous rolling-casting for metal on microstructure and properties of ZLl04 alloy

Contact Info

Product

Resources

About