Study on the micro-interface behavior of 2024Al light alloy bonded by ultrasonic assisted solid phase diffusion welding with Ag interlayer under atmosphere

Wang, Qian; Nie, Yong; Shao, Youxiang; Liu, Hongzhi; Hu, Xianluo; Li, Dianzhong

doi:10.1016/j.msea.2021.142520

Cited by 10 publications

(1 citation statement)

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“…For example, the introduction of large amplitude ultrasonic excitation may be able to promote ultrasonic-assisted diffusion. [53] Modifications to the mode of in-situ magnetic field application during annealing are ongoing.…”

Section: Discussionmentioning

confidence: 99%

Accelerating Nature: Induced Atomic Order in Equiatomic FeNi

Lewis,

Stamenov

2023

Advanced Science

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The production of locally atomically ordered FeNi (known by its meteoric mineral name, tetrataenite) is confirmed in bulk samples by simultaneous conversion X‐ray and backscattered γ‐ray 57Fe Mössbauer spectroscopy. Up to 22 volume percent of the tetragonal tetrataenite phase is quantified in samples thermally treated under simultaneous magnetic‐ and stress‐field conditions for a period of 6 weeks, with the remainder identified as the cubic FeNi alloy. In contrast, all precursor samples consist only of the cubic FeNi alloy. Data from the processed alloys are validated using Mössbauer parameters derived from natural meteoritic tetrataenite. The meteoritic tetrataenite exhibits a substantially higher degree of atomic order than do the processed samples, consistent with their low uniaxial magnetocrystalline anisotropy energy of ≈1 kJ·m−3. These results suggest that targeted refinements to the processing conditions of FeNi will foster greater atomic order and increased magnetocrystalline anisotropy, leading to an enhanced magnetic energy product. These outcomes also suggest that deductions concerning paleomagnetic conditions of the solar system, as derived from meteoritic data, may warrant re‐examination and re‐evaluation. Additionally, this work strengthens the argument that tetrataenite may indeed become a member of the advanced permanent magnet portfolio, helping to meet rapidly escalating green energy imperatives.

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Section: Discussionmentioning

confidence: 99%