High strain rate induced localized amorphization in cubic BN/NiCrAl nanocomposite through high velocity impact
High strain rate induced localized amorphization in cubic BN/NiCrAl nanocomposite through high velocity impact
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DOI：
10.1016/j.scriptamat.2011.06.030
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发表时间：
2011-10
影响因子：
6
通讯作者：
Xiao-Tao Luo;Guanjun Yang;Chang-jiu Li;K. Kondoh
中科院分区：
文献类型：
--
作者：
Xiao-Tao Luo;Guanjun Yang;Chang-jiu Li;K. Kondoh
用高分辨电子显微镜观察到了立方BN颗粒增强的面心立方Ni(Cr，Al)纳米复合材料在高速撞击下形成的局域非晶层。镍基非晶层位于∼/∼界面，被晶态镍基合金包围，厚度在cBNp/NiCrAl界面上，厚度在cBNp~NiCrAl之间。这些镍基合金晶体具有明显的择优取向，其{1+1+1}面经常平行于CBN/NiCrAl界面。
Localized amorphous layer induced by a high-velocity impact in a cubic BN particle-reinforced face-centered cubic Ni (Cr, Al) nanocomposite was observed by high-resolution transmission electron microscopy. The Ni-based amorphous layer, which had a thickness ranging from ∼3 to ∼8 nm, was located at the cBNp/NiCrAl interface and was surrounded by the crystalline Ni-based alloy. These Ni-based alloy crystals exhibited a preferred orientation with the {1 1 1} planes frequently parallel to the interfaces of cBN/NiCrAl.