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首页> 外文期刊>ISIJ international >Elastic strains of cementite in a pearlite steel during tensile deformation measured by neutron diffraction
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Elastic strains of cementite in a pearlite steel during tensile deformation measured by neutron diffraction

机译：中子衍射法测得的珠光体钢拉伸变形过程中渗碳体的弹性应变

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摘要

Lattice plane strain, i.e., elastic strain, in cementite plates embedded in the ferrite matrix was measured by in situ neutron diffraction during tensile deformation for a hypereutectoid pearlite steel. The employment of time-of-flight method and microstructure control enable us to measure the shift of cementite peaks along tensile and transverse directions at the applied stress up to 1.6 GPa. The highest elastic strains of cementite determined was approximately 0.015. Heterogeneous plastic deformation between ferrite and cementite as well as among ferrite blocks are discussed.
机译：在超共析珠光体钢的拉伸变形过程中，通过原位中子衍射法测量了嵌入铁素体基体中的渗碳体板的晶格平面应变，即弹性应变。飞行时间方法和微结构控制的采用使我们能够在不超过1.6 GPa的施加应力下测量渗碳体峰沿拉伸和横向的位移。确定的渗碳体的最高弹性应变约为0.015。讨论了铁素体与渗碳体之间以及铁素体块体之间的非均质塑性变形。

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