Squeeze‐Casting and Thixo‐Casting of Magnesium Alloys

Kainer, Karl Ulrich; Benzler, Tobias

doi:10.1002/3527602046.ch4

Cited by 47 publications

(67 citation statements)

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“…However, as a potential casting process for safety-critical parts in automotive systems such as space frame joints, squeeze casting may find its niche. Table 4.7 Advantages of squeeze casting for magnesium (Kainer and Benzler, 2003) ∑ Reduced porosity ∑ Hot cracking prevention for alloys with wide freezing ranges ∑ Increased strength and ductility due to:…”

Section: Squeeze Castingmentioning

confidence: 99%

“…Die design for squeeze casting is different from that for die casting, and includes thick gates and a large shot end biscuit to ensure that the gates do not freeze before the casting in the cavity has solidified and to ensure feeding the shrink during solidification. Other advantages of squeeze casting are contained in Table 4.7 (Kainer and Benzler, 2003).…”

Section: Squeeze Castingmentioning

confidence: 99%

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Magnesium alloys for lightweight powertrains and automotive structures

Powell

Krajewski

Luo

2010

Materials, Design and Manufacturing for Lightweight Vehicles

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Section: Squeeze Castingmentioning

confidence: 99%

Section: Squeeze Castingmentioning

confidence: 99%

Magnesium alloys for lightweight powertrains and automotive structures

Powell

Krajewski

Luo

2010

Materials, Design and Manufacturing for Lightweight Vehicles

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“…The properties of magnesium alloys are not only related to their composition [19] but also to their microstructure and melting process [20]. Traditional melting usually occurs in an atmosphere rich in argon and ulfur hexafluoride (SF 6 ) shielding gas [21].…”

Section: Introductionmentioning

confidence: 99%

Effect of melting method on the bio-corrosion resistance of Mg₆₇Zn₂₈Ca₅ cast magnesium alloy in simulated body fluid

Wang

Ding

et al. 2020

Mater. Res. Express

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In recent years, biodegradable magnesium alloys have attracted considerable attention in medical devices, such as permanent implants and stents. However, poor corrosion resistance is a major problem limiting the practical application of magnesium alloys. In this study, Mg 67 Zn 28 Ca 5 alloys were prepared via two different methods, namely, vacuum induction melting and ulfur hexafluoride shielded melting. The effect of melting method on the bio-corrosion resistance of MgZnCa cast magnesium alloy was also studied. The microstructure and phase composition of Mg 67 Zn 28 Ca 5 alloys were investigated by optical microscopy and X-ray diffraction. The element distribution and surface morphology of Mg 67 Zn 28 Ca 5 alloys were examined by scanning electron microscopy and energydispersive spectroscopy. The corrosion resistance of Mg 67 Zn 28 Ca 5 alloys was measured via electrochemical and immersion tests. Results showed uniform composition of the Mg 67 Zn 28 Ca 5 alloy melted by vacuum induction. Immersed in the simulated body fluid, the corrosion rate of Mg 67 Zn 28 Ca 5 by vacuum induction melting (0.2618 mm/a) was lower than that by ulfur hexafluoride shielded melting (0.9686 mm/a); the corrosion potential of Mg 67 Zn 28 Ca 5 melted by vacuum induction (−1313 mV) was nobler than that by ulfur hexafluoride shielded melting (−1483 mV); the corrosion current of Mg 67 Zn 28 Ca 5 by vacuum induction melting (1.202×10 −5 A) was lower than that by ulfur hexafluoride shielded melting (4.332×10 −5 A). The Mg 67 Zn 28 Ca 5 by vacuum induction melting showed uniform corrosion behavior.

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“…Magnesium and its alloys are attractive for many applications because of their light weight compared with materials such as steels and aluminum alloys [1,2], but suffer often from poorer corrosion resistance [3]. Plasma electrolytic oxidation (PEO) is a promising surface treatment process derived from conventional anodizing to form ceramic-like coatings, which are used for industrial (corrosion and wear) and biomedical applications [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Influence of plasma electrolytic oxidation coatings on fatigue performance of AZ31 Mg alloy

Klein¹,

Blawert

et al. 2016

Materials & Corrosion

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Magnesium and its alloys are attractive for lightweight construction, but suffer often from poor corrosion resistance. Plasma electrolytic oxidation is a promising surface treatment to overcome these limitations. Recently, introduction of particles to the PEO electrolyte has been explored as new strategy to provide a wider range of compositions and new functionalities for PEO coatings. However, this surface treatment can have negative impact on the fatigue strength. In the present study, the influence of PEO coatings with and without particle addition on the corrosion fatigue behavior of AZ31 Mg alloy is investigated. The corrosion fatigue behavior is investigated in load increase tests and constant amplitude tests in 0.5% NaCl solutions. Results are correlated with the corrosion behavior evaluated in polarization and electrochemical impedance spectroscopy measurements. Corrosion tests show significant improvement of the corrosion resistances of PEO‐coated specimens. However, the uncoated material exhibits the highest corrosion fatigue strength, whereas a reduction of 7% for the PEO‐coated specimen without particles and 27% for the PEO‐coated specimen with particles is found.

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Squeeze‐Casting and Thixo‐Casting of Magnesium Alloys

Cited by 47 publications

References 0 publications

Magnesium alloys for lightweight powertrains and automotive structures

Magnesium alloys for lightweight powertrains and automotive structures

Effect of melting method on the bio-corrosion resistance of Mg₆₇Zn₂₈Ca₅ cast magnesium alloy in simulated body fluid

Influence of plasma electrolytic oxidation coatings on fatigue performance of AZ31 Mg alloy

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Squeeze‐Casting and Thixo‐Casting of Magnesium Alloys

Cited by 47 publications

References 0 publications

Magnesium alloys for lightweight powertrains and automotive structures

Magnesium alloys for lightweight powertrains and automotive structures

Effect of melting method on the bio-corrosion resistance of Mg67Zn28Ca5 cast magnesium alloy in simulated body fluid

Influence of plasma electrolytic oxidation coatings on fatigue performance of AZ31 Mg alloy

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Effect of melting method on the bio-corrosion resistance of Mg₆₇Zn₂₈Ca₅ cast magnesium alloy in simulated body fluid