Effect of temperature and loading sense on deformation-induced phase transformation in a high Sn content zirconium alloy

Cochrane Chris; Daymond Mark R.

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Effect of temperature and loading sense on deformation-induced phase transformation in a high Sn content zirconium alloy

机译：温度和载荷感对高锡含量锆合金中形变相变的影响

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The activation of a phase transformation during plastic deformation of the zirconium alloy, Excel (Zr-3.5Sn-0.8Mo-0.8Nb), has been investigated using a combination of in situ neutron diffraction and electron microscopy. The effect of temperature and tension/compression asymmetry on the activation of the phase transformation is identified. While the phase transformation is readily activated in tension at room temperature and 100 degrees C, a significant drop in the transformation rate was observed at 200 degrees C. This temperature dependence appears to be independent of loading direction relative to material texture and depends on the specific crystallography and thermodynamics of the beta - alpha transformation in zirconium. Loading in compression did not result in the activation of the phase transformation.

机译：锆合金塑性变形过程中相变的激活Excel（Zr-3.5Sn-0.8Mo-0.8Nb）已通过原位中子衍射和电子显微镜相结合进行了研究。确定了温度和拉伸/压缩不对称对相变激活的影响。尽管在室温和100摄氏度下很容易激活相变，但在200摄氏度下观察到相变速率显着下降。这种温度依赖性似乎与相对于材料质地的加载方向无关，并且取决于特定的锆中β->α转变的晶体学和热力学。压缩加载不会导致相变的激活。

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《Materials Science and Engineering》 |2019年第4期|313-326|共14页
作者
Cochrane Chris; Daymond Mark R.;
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作者单位

Queens Univ, Dept Mech & Mat Engn, Kingston, ON K7L 3N6, Canada;

Queens Univ, Dept Mech & Mat Engn, Kingston, ON K7L 3N6, Canada;

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正文语种 eng
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Stress/strain measurements; X-ray analysis; Other metallic alloys; Phase transformation; Plasticity;

机译：应力/应变测量;X射线分析;其他金属合金;相变;塑性;

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1. Deformation-induced y gamma < - > alpha_2 phase transformation in TiAl alloy compressed at room temperature [J] . C.L. Chen, W. Lu, Y.Y. Cui Intermetallics . 2007,第5a6期

机译：室温压缩的TiAl合金中形变诱导的yγ<-> alpha_2相变
2. Phase Transformation Temperatures and Solute Redistribution in a Quaternary Zirconium Alloy [J] . Cochrane C., Daymond M. R. Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science . 2018,第8期

机译：季锆合金中相变温度及溶质再分布
3. Phase Transformation Temperatures and Solute Redistribution in a Quaternary Zirconium Alloy [J] . Cochrane C., Daymond M. R. Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science . 2018,第8期

机译：季锆合金中相变温度及溶质再分布
4. (P75-P004)Young's modulus change via deformation-induced phase transformation in biomedical Ti-Cr alloys with a high oxygen content [C] . Huihong Liu, Mitsuo Niinomi, Masaaki Nakai 日本金属学会大会 . 2012

机译：（P75-P004）杨氏模量通过生物医学Ti-Cr合金中的变形诱导的相变，具有高氧含量
5. Deformation-Induced Phase Transformation in a Quaternary Zirconium Alloy [D] . Cochrane, Christopher James. 2018

机译：第四纪锆合金中的形变诱导相变
6. Zirconium Phase Transformation under Static High Pressure and ω-Zr Phase Stability at High Temperatures [O] . Lucyna Jaworska, Jolanta Cyboron, Slawomir Cygan, 2019

机译：静态高压下的锆相变和高温下的ω-Zr相稳定性
7. Internal Friction Of Phase Transformations Observed Around Room Temperature In Ga-In-Sn Eutectic Alloys [O] . Jin Mingjiang, Li Qiang, Ying Renlong, 2015

机译：Ga-In-sn共晶合金在室温附近观察到的内相摩擦
8. Phase transformation temperatures of zirconium-niobium alloys containing 1 and 2.5% Nb. [R] . Peretti, H. P., Alamo, A. 1991

机译：含有1％和2.5％Nb的锆 - 铌合金的相变温度。

Effect of temperature and loading sense on deformation-induced phase transformation in a high Sn content zirconium alloy

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