时效强化是指在固溶了合金元素以后，在常温或加温的条件下，使在高温固溶的合金元素以某种形式析出（金属间化合物之类），形成弥散分布的硬质质点，对位错切过造成阻力，使强度增加，韧性降低。
...响_论文 关键词：Al-Cu-Mg合金，时效强化，错配度，热稳定性，共簇 [gap=872]Key words: Al-Cu-Mg alloy, ageing strengthening, mispairing, heat stability, co-clustering ...
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Al-Cu合金时效初期的价电子结构 - TNMSC 关键字: Al-Cu合金； 析出相； 时效强化； 价电子结构[gap=713]Key words: Al-Cu alloy; precipitates; age-hardening; valence electron structure
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The second, the studied alloy is a typical aging strengthening one. With the rising aging temperature or the prolongation of aging time, the hardness and strength of the alloy rises firstly then falls.
2．研究合金为典型的时效强化型合金，随时效温度的升高或时间的延长合金的硬度、强度先升后降。
参考来源 - 高强耐磨Cu·2,447,543篇论文数据，部分数据来源于NoteExpress
因而研究铜在钢中的时效强化、沉淀规律具有重要意义。
The age hardening characteristic of Cu Ni Si Cr Fe alloy has been investigated in this paper.
外氧化使合金表面贫铬；内氧化将降低合金固溶时效强化效果。
The external oxidation will lead to chromium dilution in the surface layer of alloy, and the internal oxidation will decrease the strengthening effect of solution and aging treatment.
研究结果表明：研究合金有很强的时效强化效应和优良的中温特性；
The results show that, firstly, the alloy has strong aging strengthening effect and good performance at intermediate temperature;
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