Metallurgical and Materials Transactions A

Metallurgical and Materials Transactions A OnlineFirst articles

30.06.2022 | Brief Communication

Transformation During Aging of Niobium-Rich Carbides in Cast Heat-Resistant Alloys

The changes occurring in two heat-resistant alloys while aged at 750 °C for different periods of time were studied. Aging promoted precipitation of secondary M23C6 carbides and transformation of Nb-rich, which were evaluated by SEM. The results …

28.06.2022 | Brief Communication

Nitrogen-Induced Phase Separation in Equiatomic FeNiCo Medium Entropy Alloy

26.06.2022 | Original Research Article

Multi-dimensional Effect of Heat Treatment on Microstructure and Property of Ti6Al4V Alloy Fabricated by Selective Electron Beam Melting

The as-built Ti6Al4V component was subjected to a heat treatment of solid solution at 1020 °C for 2 hours and followed by aging at 500 °C for 8 hours. The pores in different positions of Ti6Al4V components before and after heat treatment were …

26.06.2022 | Brief Communication

Reduction of Freckle Defect in Single-Crystal Blade Root by Controlling Local Cooling Conditions

The reduction of freckle defect in the single-crystal blade root by controlling local cooling conditions was investigated. Application of the IRBs technique increased the temperature gradient from about 10 to 21 K/cm, thus reducing PDAS in the …

Open Access 24.06.2022 | Original Research Article

Tag-and-Trace Method of α-Al Crystals Applied to Study Solidification and Casting of Aluminum Alloys

In this study, a new tag-and-trace method of α-Al crystals was developed and used to study the dissolution of a rotating Al-3Si-0.15Ti cylinder immersed into a superheated commercial purity aluminum melt. The developed tag-and-trace method …

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