Design, evolution, formation and effect mechanism of coupling distributed soft and hard micro-regions in Al–Zn–Mg–Cu–Fe alloys with high formability
Design, evolution, formation and effect mechanism of coupling distributed soft and hard micro-regions in Al–Zn–Mg–Cu–Fe alloys with high formability
复制标题
高成形性Al-Zn-Mg-Cu-Fe合金软硬耦合分布微区的设计、演化、形成及作用机制
DOI:
10.1016/j.msea.2022.143951
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发表时间:
2022-10
期刊:
影响因子:
--
通讯作者:
Linzhong Zhuang
中科院分区:
文献类型:
--
作者:
Liangliang Yuan;Mingxing Guo;Xueguang Dong;Linzhong Zhuang
Here, we report the design, evolution, formation and effect mechanism of coupling distributed soft and hard micro-regions, and propose the mechanism of evading the strength-formability trade-off dilemma for Al–Zn–Mg–Cu alloys. The results show that the coupling distributed soft and hard micro-regions, i.e., spherical shell distribution of soft and hard micro-regions, can be formed based on the precise theoretical calculation and thermomechanical processing control. Simultaneously, a heterogeneous grain distribution of fine and coarse grains can be induced in the alloys, which results in the greatly improved average plasticity-strain ratio r to the value of 0.761. This value is much higher than those of the other 7xxx series Al alloys with a similar ultimate tensile strength. Based on the microstructure evolution, the forming mechanism of heterogeneous grain distribution was proposed. These findings shed light on new strategies for designing and developing high-strength and high-formability Al–Zn–Mg–Cu alloys and other Al alloys.
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影响因子:
4.5
作者:
Zuo Q;Liu F;Wang L;Chen CF;Zhang ZH
通讯作者:
Zhang ZH
DOI:
10.1016/j.msea.2017.07.079
发表时间:
2017-08-04
影响因子:
6.4
作者:
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DOI:
10.1179/030634568790443170
发表时间:
1968-01
期刊:
Metal Science Journal
影响因子:
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作者:
H. B. Aaron
通讯作者:
H. B. Aaron
影响因子:
9.4
作者:
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通讯作者:
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