Development of Micro Tensile Testing Method in an FIB System for Evaluating Grain Boundary Strength
Development of Micro Tensile Testing Method in an FIB System for Evaluating Grain Boundary Strength
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DOI：
10.2320/matertrans.m2010320
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发表时间：
2011-01-01
影响因子：
1.2
通讯作者：
Fukuya, Koji
中科院分区：
文献类型：
--
作者：
Fujii, Katsuhiko;Fukuya, Koji
开发了一种评估晶界强度的微观拉伸测试方法。通过聚焦离子束 (FIB) 微加工制备具有一个晶界的 2 x 2 x 10 μm 样品，并在 FIB 系统中张紧。通过硅悬臂梁的偏转来测量负载，并且还现场监测位移。该方法适用于时效和未时效的具有不同晶界P偏析的Fe-Mn-P合金试样。晶间断裂载荷随着磷偏析的增加而降低。 [doi: 10.2320/matertrans.M2010320]
A micro tensile testing method for evaluating grain boundary strength was developed. Specimens of 2 x 2 x 10 mu m having one grain boundary were made by focused ion beam (FIB) micro-processing and tensioned in an FIB system. The load was measured from the deflection of the Si cantilever and the displacement was also monitored in situ. The method was applied to aged and unaged Fe-Mn-P alloy specimens with different grain boundary P segregation. The load at intergranular fracture decreased with increasing P segregation. [doi: 10.2320/matertrans.M2010320]