Fracture behaviour of ultrafine-grained materials under static and cyclic loading
Fracture behaviour of ultrafine-grained materials under static and cyclic loading
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DOI：
10.3139/146.101422
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发表时间：
2006-11
影响因子：
0.8
通讯作者：
P. Hübner;R. Kiessling;H. Biermann;A. Vinogradov
中科院分区：
文献类型：
--
作者：
P. Hübner;R. Kiessling;H. Biermann;A. Vinogradov
摘要对铜、钛和铝合金的超细晶试样进行了断裂力学实验，以获得静态和循环载荷下的断裂行为。所研究的UFG材料在静态载荷下表现出抗裂行为，这一点得到了韧性断裂表面的证实。ESACRACK模型能较好地描述循环载荷下裂纹扩展速率。
Abstract Fracture-mechanics experiments were carried out on ultrafine-grained (UFG) samples of copper, titanium and an Al alloy to obtain the fracture behaviour under static and cyclic loading. The UFG-materials investigated show crack resistance behaviour under static loading, which was confirmed by ductile fracture surfaces. Under cyclic load the crack growth rate was described well by the ESACRACK model.