%0 Journal Article
%A Wei, Shaolou
%A Ma, Yan
%A Raabe, Dierk
%T Reactive vapor-phase dealloying-alloying turns oxides into sustainable bulk nano-structured porous alloys
%J Science advances
%V 10
%N 51
%@ 2375-2548
%C Washington, DC [u.a.]
%I Assoc.
%M PUBDB-2024-08088
%P eads2140
%D 2024
%X For millennia, alloying has been the greatest gift from metallurgy to humankind: a process of mixing elements, propelling our society from the Bronze Age to the Space Age. Dealloying, by contrast, acts like a penalty: a corrosive counteracting process of selectively removing elements from alloys or compounds, degrading their structural integrity over time. We show that when these two opposite metallurgical processes meet in a reactive vapor environment, profound sustainable alloy design opportunities become accessible, enabling bulk nanostructured porous alloys directly from oxides, with zero carbon footprint. We introduce thermodynamically well-grounded treasure maps that turn the intuitive opposition between alloying and dealloying into harmony, facilitating a quantitative approach to navigate synthesis in such an immense design space. We demonstrate this alloy design paradigm by synthesizing nanostructured Fe-Ni-N porous martensitic alloys fully from oxides in a single solid-state process step and substantiating the critical kinetic processes responsible for the desired microstructure. 
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:39693426
%U <Go to ISI:>//WOS:001380638700004
%R 10.1126/sciadv.ads2140
%U https://bib-pubdb1.desy.de/record/620005