A deformation mechanism of hard metal surrounded by soft metal during roll forming.
A deformation mechanism of hard metal surrounded by soft metal during roll forming.
复制标题
滚压成形过程中软金属包围硬金属的变形机制
DOI：
10.1038/srep05017
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发表时间：
2014-05-23
影响因子：
4.6
通讯作者：
Qin Q
中科院分区：
文献类型：
--
作者：
Yu H;Tieu AK;Lu C;Liu X;Godbole A;Li H;Kong C;Qin Q
想象一下，当煮熟的鸡蛋和石头的混合物一起变形时会发生什么，这是很有趣的。由纯钛制成的箔比由铜制成的箔更坚固。根据先前报道的结果，当铜/钛复合箔变形时，较硬的钛将以凸形渗入较软的铜中。本文描述了用滚压键合技术制备多层铜/钛薄膜的方法，并报道了我们的观察结果。实验结果表明，在叠层铝箔轧制过程中，硬质金属和软质金属之间存在一种新的变形机制，特别是当硬质金属箔(Ti，25 μm)的厚度远小于软质金属箔(Cu300 μm)的厚度时。透射电子显微镜成像结果表明，硬质金属以凹形突起的形式渗入软质金属中。对铜/钛/铜复合箔的轧制过程进行了有限元模拟。最后，重点分析了钛箔的变形机理及其对晶粒细化的影响，提出了一种由内而外的轧制细化机制。
It is interesting to imagine what would happen when a mixture of soft-boiled eggs and stones is deformed together. A foil made of pure Ti is stronger than that made of Cu. When a composite Cu/Ti foil deforms, the harder Ti will penetrate into the softer Cu in the convex shapes according to previously reported results. In this paper, we describe the fabrication of multilayer Cu/Ti foils by the roll bonding technique and report our observations. The experimental results lead us to propose a new deformation mechanism for a hard metal surrounded by a soft metal during rolling of a laminated foil, particularly when the thickness of hard metal foil (Ti, 25 μm) is much less than that of the soft metal foil (Cu, 300 μm). Transmission Electron Microscope (TEM) imaging results show that the hard metal penetrates into the soft metal in the form of concave protrusions. Finite element simulations of the rolling process of a Cu/Ti/Cu composite foil are described. Finally, we focus on an analysis of the deformation mechanism of Ti foils and its effects on grain refinement and propose a grain refinement mechanism from the inside to the outside of the laminates during rolling.
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通过累积滚压和不对称滚压制造超薄纳米结构双金属箔
影响因子：
4.6
作者：
Yu, Hailiang;Lu, Cheng;Tieu, A. Kiet;Godbole, Ajit;Su, Lihong;Sun, Yong;Liu, Mao;Tang, Delin;Kong, Charlie
通讯作者：
Kong, Charlie
影响因子：
8.4
作者：
Ahmadi, Azin;Toroghinejad, Mohammad Reza;Najafizadeh, Abbas
通讯作者：
Najafizadeh, Abbas
一种大弹性应变、低模量、高强度的相变金属纳米复合材料
影响因子：
56.9
作者：
Hao, Shijie;Cui, Lishan;Li, Ju
通讯作者：
Li, Ju
影响因子：
13.1
作者：
Atrian, Amir;Fereshteh-Saniee, Faramarz
通讯作者：
Fereshteh-Saniee, Faramarz
DOI：
10.1080/01418619508236240
发表时间：
1995-05-01
期刊：
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES
影响因子：
--
作者：
JUNQUA, N;GRILHE, J
通讯作者：
GRILHE, J