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Recent years’ dynamic development, being present in the automobile industry, is mostly based on innovative constructional solutions as well modern materials, which directly influence mass, performance...
Purpose: This research work presents the investigation results of derivative thermoanalysis performed using the UMSA device (Universal Metallurgical Simulator and Analyzer). The material used for inve...
For determining of the dependence between cooling Speer, chemical composition and structure of the AlSiCu aluminium cast alloy the thermo-analysis was carried out, using the UMSA device (Universal M...
Purpose: The technological progress in material engineering causes the continuous need to develop product testing methods providing comprehensive quality evaluation. In material engineering it is the ...
The developed design methodologies both the material and technological ones will make it possible to improve shortly the quality of materials from the light alloys in the technological process, and th...
The mechanical properties of different chemical composition AlSiCuMg type cast alloys after precipitation hardening are presented. The aim of the study was to find out how much the changes in chemistr...
In the metal casting industry, an improvement of component quality depends mainly on better control over the production parameters. In order to gain a better understanding of how to control the as-cas...
materials from the light alloys in the technological process, and the automatic process flow correction will make the production cost reduction possible, and - first of all - to reduce the amount of t...
对固溶处理过程中铸造Al-Si-Cu-Mg合金析出相溶解过程进行了研究。结果表明:在固溶处理初期,组织中θ相的数量逐渐减少,但在(FeMn)3SiAl12相中还有一定的Cu含量;而固溶后期,富铁相中的Cu含量也明显降低,且难溶的Al3Ti针状相也发生钝化,但部分Q相尚存在;随着固溶时间的延长,合金基体中Cu和Mg的含量逐渐增多,且富Mn和富Ti相也在合金基体中略有溶解;合金的固溶强化作用主要来源于...
采用DSC差热分析及急冷试验方法并辅以微区成分分析,探讨了Ni和Mn对AlSiCuMg四元合金凝固组织、凝固过程及时效硬化特性的影响。Ni的加入量达4%以上时,在组织中将形成初晶型AlNiCu三元化合物和共晶型AlNiCu三元化合物,若同时添加Mn,则还会结晶出共晶型的AlSiCuNiMn五元化合物;Ni和Mn的加入可以加快AlSiCuMg合金的时效硬化速度,同时又可推...

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