A brittle-fracture methodology for three-dimensional visualization of ductile deformation micromechanisms
A brittle-fracture methodology for three-dimensional visualization of ductile deformation micromechanisms
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韧性变形微观机制三维可视化的脆性断裂方法
DOI：
10.1016/j.scriptamat.2009.02.049
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发表时间：
2009
影响因子：
6
通讯作者：
M. Geers
中科院分区：
文献类型：
--
作者：
C. Tasan;Jpm Johan Hoefnagels;M. Geers
提出了一种改进的实验方法，并成功地评估了塑性金属板中变形引起的微事件的可视化。这种易于使用的方法包括对先前以延性方式变形的样品进行良好控制的脆性分离，从而对两个断裂表面进行耦合分析，从而允许从延性预变形中重新组合三维特征。得到的结果显示了丰富的信息，关于晶粒变形，微空洞的成核位置和生长机制，以及其他微事件引起的韧性变形。
An improved experimental methodology is developed and successfully evaluated to visualize deformation-induced microevents in ductile sheet metal. This easy-to-use methodology consists in a well-controlled brittle separation of samples previously deformed in a ductile manner, whereby a coupled-analysis of the two fracture surfaces permits three-dimensional features to be recombined from the ductile predeformation. The results obtained show a wealth of information regarding grain deformations, microvoid nucleation sites and growth mechanisms, and other microevents induced by ductile deformation.