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-Sc-Zr alloy; compressive property; energy absorption; nano-size precipitate 泡沫铝是一种金属骨架中无序分布着大量孔隙的超轻多孔金属.特殊的孔隙效应使其表现出很多优异的性能,例如超轻质(密度低于水的密度),高比强度和比刚度,高能量吸收能力,高阻尼,优异的声学,热学以及电磁屏蔽等多功能兼容,在交通运输工程,船舶与海洋工程,建筑工......
; precipitate 搅拌摩擦焊(简称FSW)是一种通过高速旋转的搅拌头与被焊材料间的剧烈热机联合作用而实现的固相连接方法[1].它适用于焊接用熔化焊方法难于焊接的轻合金......
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dynamically precipitated at grain boundaries. Key words: Mg-Gd-Y alloy; ductility; multiaxial forging; microstructure; dynamic precipitate 1 Introduction There is increasing scientific and industrial......
Al-Sc合金相结构的第一原理研究苏振兴1,王雨晨1,王绍青1(1.辽宁省沈阳市科学院金属研究所沈阳材料科学国家(联合)实验室)摘 要:采用第一原理赝势平面波方法计算了Al-Sc合金固溶体,有序相和无序相结构对应的形成焓.在无序合金的电子结构研究中,引入了可以描述无序合金结构环境的小尺寸超单胞模型--SQS模型.计算结果表明:超饱和固溶体中的Sc原子具有偏聚产生L12结构的Al3Sc析出相和L10结构的AlSc析出相的趋势.依据对各相的电子结构及电子密度分析结果,初步探讨了时效处理导致超饱和固溶体Al(Sc)中......
with BIO seeds. Key words: jarosite seed; jarosite process; induction period; temperature; initial precipitate rate 1 Introduction Ferric iron that commonly exists in leaching solution needs to be removed... performance. Most studies on the effect of jarosite seeds on precipitate formation rate are based mostly on chemical synthesis [8-11], whereas research on the lower-cost biological method is limited......
of the large specimen, which is consistent with the properties of the alloys. Key words: aluminum alloy; specimen size; solution treatment; heating rate; hardening precipitate 1 Introduction Al-Zn-Mg-Cu... solution supersaturation. And more aging hardening precipitates can precipitate during the aging treatment. This is in accordance with the results of the DSC analysis. 7000 series aluminum alloys......
in a Mg-8Al-0.5Zn alloy via precipitation[J]. Scripta Materialia, 2010, 62(5): 301-304. [15] ROBSON J D, STANFORD N, BARNETT M R. Effect of precipitate shape on slip and twinning in magnesium alloys[J]. Acta...; solution; aging; twins; precipitate Foundation item: Project(51175231) supported by the National Natural Science Foundation of China Received date: 2015-06-29; Accepted date: 2015-10-26 Corresponding......
, ductility and precipitate microstructures with PFZ in Al-Zn-Mg (-Ag, Cu) alloys[J]. Materials Science Forum, 2006, 519: 431-436. [29] ZHEN L, KANG S B. Deformation and fracture behavior of two Al-Mg-Si...; precipitate phase; corrosion resistance; tensile property Foundation item: Project(2011-006) supported by the State Administration of Science, Technology and Industry for Nation Defence, China Received......
, but worse in their late stages of in-depth corrosion. Key words: Al-Zn-Mg-Cu alloys; localized corrosion; microstructure; precipitate free zone; constituent Foundation item: Project(51471067, 51501059......
