Microstructure and mechanical response of TiB2/Al–Zn–Mg–Cu composites with more addition of Zn
Microstructure and mechanical response of TiB2/Al–Zn–Mg–Cu composites with more addition of Zn
复制标题
添加更多Zn的TiB2/Al-Zn-Mg-Cu复合材料的显微组织和力学响应
DOI：
10.1016/j.jallcom.2019.152584
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发表时间：
2020-03
影响因子：
6.2
通讯作者：
Wang H. W.
中科院分区：
文献类型：
--
作者：
Yang Q;Shen Y;Liu J;Wang L;Chen Z;Wang M. L;Zhong S. Y;Wu Y;Wang H. W.
采用粉末冶金法制备了不同Zn含量的原位TiB 2/Al-Zn-Mg-Cu复合材料。由溶质元素组成的界面相在加热过程中优先在TiB 2颗粒的晶面形核，局部区域的团簇阻碍了界面相向基体的溶解。此外，还发现了粉末冶金法制备的TiB_2/Al-Zn-Mg-Cu复合材料随Zn含量的增加，时效-硬度响应加快，加工硬化速率降低的现象。一个基于物理的数值模型来预测作为时效时间的函数的沉淀动力学和硬度。由于溶质含量的增加，形核速率和生长速率加快，使硬度提前达到峰值。基于基体中溶质含量、析出相尺寸和体积分数等状态参数，讨论了Zn含量对加工硬化速率的影响。根据实验结果定性地讨论了TiB 2颗粒对尺寸级模型参数的影响。
In the present work, the in-situ TiB2/Al–Zn–Mg–Cu composites with different content of Zn element were fabricated by powder metallurgy. The interphases composed of solute elements are preferentially nucleated at the facets of the TiB2particles during heating and the clusters in local region hinder the dissolution of the interphases into the matrix. Additionally, the phenomena of accelerated age-hardness response and reduced work hardening rate with increasing Zn content are found experimentally for TiB2/Al–Zn–Mg–Cu composites fabricated by powder metallurgy. A physically-based numerical model is developed to predict the precipitation kinetics and hardness as a function of aging time. The advanced reach to peak hardness results from accelerated nucleate rate and growth rate due to more addition of solute content. The influence of Zn content on the work hardening rate is discussed based on the state-parameters including solute content in the matrix, precipitate size and volume fraction. The effect of TiB2particles on the parameters of the size class model is discussed qualitatively based on the experimental observations.
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DOI：
10.1016/0025-5416(80)90110-x
发表时间：
1980-05
期刊：
Materials Science and Engineering
影响因子：
--
作者：
T. Sanders;E. Ludwiczak;R. R. Sawtell-R.
通讯作者：
T. Sanders;E. Ludwiczak;R. R. Sawtell-R.
DOI：
10.1016/j.msea.2018.11.030
发表时间：
2019-01
期刊：
Materials Science and Engineering: A
影响因子：
--
作者：
M. Wang;Yan Wang;Jun Liu;Zhe Chen;Han Chen;Yi Wu;Fengguo Zhang;Haowei Wang
通讯作者：
M. Wang;Yan Wang;Jun Liu;Zhe Chen;Han Chen;Yi Wu;Fengguo Zhang;Haowei Wang
影响因子：
9.4
作者：
Ma, Kaka;Wen, Haiming;Schoenung, Julie M.
通讯作者：
Schoenung, Julie M.
DOI：
10.1007/bf02851349
发表时间：
1991-11-01
期刊：
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
影响因子：
--
作者：
DUTTA, I;ALLEN, SM;HAFLEY, JL
通讯作者：
HAFLEY, JL
影响因子：
9.4
作者：
F. Fazeli;W. Poole;C. Sinclair
通讯作者：
F. Fazeli;W. Poole;C. Sinclair