Contribution of interstitial solute strengthening in aluminum
Contribution of interstitial solute strengthening in aluminum
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DOI：
10.1080/09500839.2013.860492
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发表时间：
2014-02
影响因子：
1.2
通讯作者：
I. Matsui;S. Ono;Yudai Hanaoka;T. Uesugi;Y. Takigawa;K. Higashi
中科院分区：
文献类型：
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作者：
I. Matsui;S. Ono;Yudai Hanaoka;T. Uesugi;Y. Takigawa;K. Higashi
采用第一性原理计算方法测定了Al-X （X = H， B， C， N， O）二元合金的溶液焓和错配应变，以估计间隙原子对固溶体的强化作用。结果表明，间隙溶质原子产生了较大的错配应变。电沉积铝含有0.12-1.32 at。用% C来评价间隙溶质原子固溶强化的有效性。讨论了间隙碳对电沉积铝的强化作用。
Enthalpies of solutions and misfit strains for the Al–X (X = H, B, C, N, and O) binary alloys were determined by first-principles calculations to estimate the strengthening of solid solutions caused by interstitial atoms. The results indicate that interstitial solute atoms produced large misfit strains. Electrodeposited Al containing 0.12–1.32 at.% C was used to assess the validity of solid-solution strengthening by interstitial solute atoms. The role that interstitial carbon plays in strengthening electrodeposited Al is discussed.