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Discovery of a multicomponent alloy forged by the Hiroshima atomic blast
Researchers have identified a previously unknown multicomponent alloy, named hiroshimaite, formed during the 1945 Hiroshima atomic explosion. Found in beach sand debris from Hiroshima Bay, the alloy has a Fe-Cr-Ni-Si-Mn-Mo-Al composition and crystallizes in the cubic AlAu4-type structure (space group P213), an ordered derivative of β-Mn. The phase likely formed through condensation from a mixed metallic vapor followed by ultrafast quenching in the expanding fireball — conditions that enabled stochastic atomic mixing of diverse metallic species from vaporized urban infrastructure. The discovery demonstrates that nuclear plasma events can stabilize complex metallic phases inaccessible through conventional metallurgy, and draws parallels to the icosahedral quasicrystal previously found in Trinity test trinitite. The alloy's structure may serve as a template for designing new Fe-Cr-Ni-Si alloys with unusual combinations of hardness, thermal stability, and functional properties.
Source: https://www.science.org/doi/10.1126/sciadv.aeg8299. 8sync News only summarizes and links out; content copyright belongs to the authors and original sources.
