Instability of crack propagation in brittle bulk metallic glass
Instability of crack propagation in brittle bulk metallic glass
复制标题
脆性大块金属玻璃中裂纹扩展的不稳定性
DOI：
10.1016/j.actamat.2008.08.005
复制
发表时间：
2008-11
期刊：
影响因子：
9.4
通讯作者：
Xu, X. H.
中科院分区：
文献类型：
--
作者：
Wang, G.;Wang, W. H.;Chan, K. C.;Xu, X. H.
The instability of the crack tip in brittle Mg-based bulk metallic glass (BMG) is studied. The formation of various fractographic surfaces of the BMG is associated with the instability of the fluid meniscus, which is due to viscous fluid matter being present on the fracture process zone. Depending on the values of the wavelength of the initial perturbation of the fluid meniscus and the local stress intensity factor, different fracture surface profiles, i.e. a dimple-like structure, a periodic corrugation pattern and a pure mirror zone are formed. The fractogaphic evolution is significantly affected by the applied stress. A decreased fracture surface roughness is observed under a low applied stress. An increased fracture surface roughness, which has frequently been reported by other researchers, is also observed in the present studies under a high applied stress. Unique fractographic features are attributed to the non-linear hyperelastic stiffening (or less softening) mechanism.
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影响因子：
1.6
作者：
Jiang, M. Q.;Ling, Z.;Dai, L. H.
通讯作者：
Dai, L. H.
影响因子：
64.8
作者：
E. Sharon;J. Fineberg
通讯作者：
E. Sharon;J. Fineberg
影响因子：
8.6
作者：
E. Sharon;G. Cohen;J. Fineberg
通讯作者：
E. Sharon;G. Cohen;J. Fineberg
DOI：
10.1016/0001-6160(79)90055-5
发表时间：
1979-01-01
期刊：
ACTA METALLURGICA
影响因子：
--
作者：
ARGON, AS
通讯作者：
ARGON, AS
影响因子：
4
作者：
X. Xi;D. Q. Zhao;M. Pan;Weihua Wang;Y. Wu;J. Lewandowski
通讯作者：
X. Xi;D. Q. Zhao;M. Pan;Weihua Wang;Y. Wu;J. Lewandowski