Estimation Of Cooling Rates In Suction Casting And Copper-Mould Casting Processes

Kozieł, Tomasz

doi:10.1515/amm-2015-0204

Cited by 50 publications

(20 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Those corresponding to the 76Fe-24Ni at.% alloy are given in [43][44][45]. A representative microstructure formed in a 1-mm rod cast from the reference alloy is shown in Fig.…”

Section: Cooling Rate Estimationmentioning

confidence: 99%

Formation of a quasicrystalline phase in Al–Mn base alloys cast at intermediate cooling rates

et al. 2017

View full text Add to dashboard Cite

Al-rich 94Al-6Mn and 94Al-4Mn-2Fe alloys were suction-cast to evaluate the feasibility of obtaining bulk quasicrystal-strengthened Al-alloys at intermediate cooling rates alloyed with non-toxic, easily accessible and affordable additions. The influence of different cooling rates on the potential formation of a quasicrystalline phase was examined by means of scanning and transmission electron microscopy, X-ray diffraction and differential scanning calorimetry. Increased cooling rates in the thinnest castings entailed a change in sample phase composition. The highest cooling rates turned out to be insufficient to form an icosahedral quasicrystalline phase (I-phase) in the binary alloy. Instead, an orthorhombic approximant phase occurred (L-phase). The addition of Fe to the 94Al-6Mn binary alloy enhanced the formation of a quasicrystalline phase. At intermediate cooling rates of 10 2 -10 3 K/s, various metastable phases were formed, including decagonal and icosahedral quasicrystals and their approximants. Rods (1 mm in diameter) composed of I-phase particles embedded in Al matrix exhibited a hardness of 1.5 GPa, much higher than the 1.1 GPa of 94Al-6Mn.

show abstract

“…Those corresponding to the 76Fe-24Ni at.% alloy are given in [43][44][45]. A representative microstructure formed in a 1-mm rod cast from the reference alloy is shown in Fig.…”

Section: Cooling Rate Estimationmentioning

confidence: 99%

Formation of a quasicrystalline phase in Al–Mn base alloys cast at intermediate cooling rates

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In this method an arc melted alloy is sucked into a copper mould containing a cylindrical cavity. The minimum axial cooling rate for 3 mm diameter rods was previously estimated as ~200°K/s [26].…”

Section: Methodsmentioning

confidence: 99%

Effect of Zr Purity and Oxygen Content on the Structure and Mechanical Properties of Melt-Spun and Suction-Cast Cu46Zr42Al7Y5 Alloy

Kozieł¹,

Latuch²,

Cios³

et al. 2016

Archives of Metallurgy and Materials

Self Cite

View full text Add to dashboard Cite

The effect of oxygen content in zirconium on the structure and mechanical properties of the Cu 46 Zr 42 Al 7 Y 5 alloy, in the form of melt-spun ribbons and suction-cast rods, was investigated. Two types of Zr, rod and crystal bar of different nominal purities and oxygen contents, were used to synthesize the alloy by arc melting. Rapidly solidified ribbons were produced by melt spinning and their amorphous structures were confirmed by X-ray diffractometry (XRD) and differential scanning calorimetry (DSC). Bulk samples in the form of rods were cast using a special water-cooled suction casting unit attached to the arc melting system. XRD and DSC studies proved the amorphous structure of the bulk alloy synthesized from low-oxygen Zr and partial crystallization of the same alloy for high-oxygen Zr. In both bulk samples, uniformly distributed crystalline particles were identified as yttrium oxides. Higher mean compressive strength of amorphous alloy was observed. The hardness of amorphous phase was close to 500 HV1 in both bulk alloys, while the hardness of crystalline dendritic areas, observed in the alloy synthesized from high oxygen Zr, was lower by about 50 HV1.

show abstract

“…Bulk cylindrical samples, with diameters of 3 mm and lengths of 55 mm, were prepared using a special water-cooled suction casting unit. A minimum axial cooling rate was estimated to be about 200 K/s [18].…”

Section: Methodsmentioning

confidence: 99%

Structures of Cu-Based Glass Forming System Doped with Iron

et al. 2016

Self Cite

View full text Add to dashboard Cite

The effects of iron additions on the structure of (Cu0.47Ti0.34Zr0.11Ni0.08)100−xFex (x = 0, 1.5, 3, 6) glass forming system are presented. The alloys were synthesized by arc melting of high purity elements and melt spun to form rapidly quenched ribbons. X-ray diffraction studies showed the amorphous structure of the base and Fe-containing alloys, confirmed by the presence of exothermic peaks on differential scanning calorimetry curves. Bulk samples in the form of rods (Φ3 × 55 mm) were cast using a suction casting unit attached to the arc melter. Structural investigations revealed partial crystallization of the base Cu47Ti34Zr11Ni8 alloy. Iron additions significantly decreased the glass forming ability of the alloy, leading to primary crystallization of dendrites.

show abstract

Estimation Of Cooling Rates In Suction Casting And Copper-Mould Casting Processes

Cited by 50 publications

References 13 publications

Formation of a quasicrystalline phase in Al–Mn base alloys cast at intermediate cooling rates

Formation of a quasicrystalline phase in Al–Mn base alloys cast at intermediate cooling rates

Effect of Zr Purity and Oxygen Content on the Structure and Mechanical Properties of Melt-Spun and Suction-Cast Cu46Zr42Al7Y5 Alloy

Structures of Cu-Based Glass Forming System Doped with Iron

Contact Info

Product

Resources

About