The development of intergranular strains in a high-strength steel
The development of intergranular strains in a high-strength steel
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高强度钢中晶间应变的发展
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
T. Mason
中科院分区：
文献类型：
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作者：
J. Pang;T. Holden;T. Mason
对一种高强度低合金钢进行了原位中子衍射测量，研究了单轴载荷下晶间应变的产生。发现晶间应变在小塑性变形(-lt；4.5%)时活跃发展，并在随后的加载中保持不变。横跨应力轴的(002)面反射产生了较大的拉伸应变，平均为7×10−4，而晶间效应相对较小。实验结果与基于弹塑性自洽模型的预测结果吻合较好。
Abstract In situ neutron diffraction measurements have been made on a high-strength low-alloy steel to study the generation of intergranular strains under uniaxial load. Intergranular strains were found to be actively developed at small plastic deformation (< 4.5 per cent) and stay unchanged in subsequent loadings. Large tensile strains of an average 7 × 10−4 were observed for the (002) reflections transverse to the stress axis whereas intergranular effects are comparatively insignificant for other reflections. Experimental results were found to be in excellent agreement with the predictions based on the elastoplastic self-consistent model.