Residual Stress Distributions in the Solid Solution Eutectic, Co1−xNixO/ZrO2(CaO)
Residual Stress Distributions in the Solid Solution Eutectic, Co1−xNixO/ZrO2(CaO)
复制标题
固溶共晶 Co1−xNixO/ZrO2(CaO) 中的残余应力分布
DOI：
10.1111/j.1151-2916.2003.tb03629.x
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发表时间：
2003
影响因子：
3.9
通讯作者：
V. Dravid
中科院分区：
文献类型：
--
作者：
L. Brewer;R. Peascoe;C. Hubbard;V. Dravid
本研究探讨了固溶体定向凝固共晶（DSE）氧化物Co 1 −xNixO/ZrO 2（CaO）的层状显微组织中的热失配应力。X射线和中子衍射测量上进行孤立的共晶域测量残余应变和应力张量。记录到的最大主残余应力约为1 GPa，Co 1 −xNixO和ZrO 2（CaO）相分别保持拉伸和压缩应力状态。这些材料的应力张量进行了比较，类似的DSE氧化物系统的测量，并建议固溶体DSE可用于定制DSE复合材料中的残余应力状态。
This study investigates thermal mismatch stresses in the lamellar microstructure of the solid solution directionally solidified eutectic (DSE) oxide Co1−xNixO/ZrO2(CaO). X-ray and neutron diffraction measurements were performed on isolated eutectic domains to measure the residual strain and stress tensors. Maximum principal residual stresses on the order of 1 GPa were recorded, with the Co1−xNixO and the ZrO2(CaO) phases maintaining states of tensile and compressive stress, respectively. The stress tensors for these materials are compared with measurements for similar DSE oxide systems and suggest that solid solution DSEs might be used to tailor the residual stress states in DSE composites.