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@ARTICLE{Dai:634620,
author = {Dai, Shuai and Shi, Yunzhu and He, Junyang and Hou, Jie and
Zhang, Fei and Wu, Zhenggang and Ma, Chao and Liu, Shaofei
and Schökel, Alexander and Ma, Yan and Wei, Shaolou and
Pistidda, Claudio and Lei, Zhifeng and Lu, Zhaoping},
title = {{U}ltrastrong and ductile precipitation-hardened alloy via
high antiphase boundary energy},
journal = {Science advances},
volume = {11},
number = {29},
issn = {2375-2548},
address = {Washington, DC [u.a.]},
publisher = {Science},
reportid = {PUBDB-2025-02534},
pages = {eadu7566},
year = {2025},
abstract = {Coherent precipitation-hardened alloys often struggle to
achieve both ultrahigh strength and exceptional ductility
due to their limited resistance to dislocation motion and
vulnerability to glide plane softening. Here, we tackle
these challenges by introducing multicomponent precipitates
with much increased antiphase boundary (APB) energy. In a
model Ni$_3$Al-type (L1$_2$) precipitation-hardened
face-centered cubic (FCC) NiCo-based alloy, we incorporate
multiple elements at the Al sublattice sites within the
precipitates, reducing antisite defects and enhancing
ordering degree. This process yields multicomponent
precipitates with an ultrahigh APB energy (~308 ± 14
millijoules per square meter), which notably strengthens the
alloy. Moreover, the exceptionally high APB energy
transforms the deformation mechanism from dislocation
shearing to stacking fault shearing, thereby avoiding glide
plane softening. These result in a tensile yield strength of
1616 ± 9 megapascals, an ultimate tensile strength of 2155
± 22 megapascals, and a uniform elongation of 10.1 ± 0.3\%
for the alloy.},
cin = {DOOR ; HAS-User / Hereon},
ddc = {500},
cid = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)Hereon-20210428},
pnm = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20230050
(I-20230050) / FS-Proposal: I-20230183 (I-20230183)},
pid = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20230050 /
G:(DE-H253)I-20230183},
experiment = {EXP:(DE-H253)P-P02.1-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40680120},
doi = {10.1126/sciadv.adu7566},
url = {https://bib-pubdb1.desy.de/record/634620},
}