Effects of rare earth Er addition on microstructure and mechanical properties of hypereutectic Al–20% Si alloy

Li, Qinglin; Xia, Tiandong; Lan, Yaqi; Li, Pengfei; Lu, Fan Xiu

doi:10.1016/j.msea.2013.09.017

Cited by 101 publications

(37 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Ötektik üstü Al-Si alaşımlarında ince, düzgün geometride ve homojen dağılmış primer ve ötektik Si fazları aşınma özelliklerinin yanında mekanik özellikleri de iyileştirebilmektedir. İnce ve homojen dağılmış Si fazlarıyla fiziksel ve mekanik özelliklerin iyileştirilebilmesi için primer ve ötektik silisler inceltilip modifiye edilmelidir [10].…”

Section: Introductionunclassified

The Effect of Sr Modification and Holding Time on Si Morphology and Mechanical Properties of ETIAL 195 Alloy

Uludağ¹,

Gemi²,

Eryılmaz³

et al. 2015

Pamukkale J Eng Sci

View full text Add to dashboard Cite

Section: Introductionunclassified

The Effect of Sr Modification and Holding Time on Si Morphology and Mechanical Properties of ETIAL 195 Alloy

Uludağ¹,

Gemi²,

Eryılmaz³

et al. 2015

Pamukkale J Eng Sci

View full text Add to dashboard Cite

“…3 d. These primary Si sizes have shown the well consistency with the reported data [34,40,43] of eutectic Al-Si alloys. This finding has also proved that the Er was almost used to form the Al3(Er,Cu,Fe)(Ni, Si)2 phase, and thus did not show the refining effect on the primary Si which was suggested in both Xing`s [20] and Li`s [22] works. (Fig.…”

Section: Resultsmentioning

confidence: 57%

“…Li et al [22] demonstrated both primary and eutectic Si can be refined or modified with the 0.5 wt.% Er addition, in which the UTS at RT was improved by ~75 % in the alloys. Generally, it is found that Er has the effect on the refinement of primary Si [20,22] and modification of eutectic Si [18,19,21,23], which can thus improve the RT mechanical properties in Al-Si alloys. However, there are few reports discussing the dependence of the Er content on the micro-structural evolution and strength at high temperature (HT) of Al-Si alloys to the best of our knowledge.…”

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

View full text Add to dashboard Cite

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

show abstract

“…The results indicated that the rare earth element, Er, is a good modifier of the A356 aluminium alloy, and is able to improve the mechanical properties as well as the microstructure of the as-cast alloy [11]. The addition of 0.3 wt.% of Er had the best effect on the refinement of the α-Al grains and the morphology of the eutectic Si phases [12]. Moreover, it was found that the appropriate addition of Er was able to change the size and shape of the eutectic silicon, thereby refining the microstructure of the Al-Si alloy [13].…”

Section: Original Articlementioning

confidence: 99%

Effect of High Erbium on Mechanical Properties of Aluminium Alloy

Ahmad¹,

Tjprc²

2019

IJMPERD

View full text Add to dashboard Cite

The effects of the addition of the rare earth element, erbium (Er), on the microstructure and mechanical properties of LM 24 alloy were investigated. A microstructural characterisation was performed using an optical microscope (OM) and scanning electron microscope (SEM). When 1.0 wt % of Er was added to LM 24 alloy, the mean area decreased from 1026.16 µm 2 to 95.35 µm 2 , while the aspect ratio decreased from 3.6329 to 2.322. Observations via an optical microscope showed that the unmodified alloy had a coarse plate-like structure. The addition of 1.0 wt % of Er produced the best modification effect on the Si phases, which were transformed into fine particles and short rods. The mechanical properties with various concentrations of Er were investigated by means of an ultimate tensile test and Vicker's hardness test. The results of the ultimate tensile test showed that the elongation increased with an increase in the Er content of up to 0.3 wt %, and then decreased with the addition of more Er. Furthermore, the hardness increased slightly with the addition of Er.

show abstract

Effects of rare earth Er addition on microstructure and mechanical properties of hypereutectic Al–20% Si alloy

Cited by 101 publications

References 39 publications

The Effect of Sr Modification and Holding Time on Si Morphology and Mechanical Properties of ETIAL 195 Alloy

The Effect of Sr Modification and Holding Time on Si Morphology and Mechanical Properties of ETIAL 195 Alloy

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

Effect of High Erbium on Mechanical Properties of Aluminium Alloy

Contact Info

Product

Resources

About