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Study on Microstructure and Mechanical Properties of B2-type As-cast Zr-Co-Cu Alloys AITranslate

DONG Hong-feng; MENG Fan-ying; LIU Ya-ling; ZHANG Wei; WANG Lin; WU Jun-xia; LI Pei-you
School of Materials Science and Engineering,Shaanxi University of Technology;School of Materials Science and Engineering,Shaanxi University of Technology;School of Materials Science and Engineering,Shaanxi University of Technology;School of Materials Science and Engineering,Shaanxi University of Technology;School of Materials Science and Engineering,Shaanxi University of Technology;School of Materials Science and Engineering,Shaanxi University of Technology;School of Materials Science and Engineering,Shaanxi University of Technology
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Publisher: Editorial Office of Rare Metals and Cemented Carbides
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Abstract AITranslate

The microstructure and mechanical properties of B2-type as-cast Zr46Co46Cu8,Zr45Co45Cu10and Zr44Co44Cu12alloys were studied by X-ray diffractometer,optical microscope,electro-mechanical universal testing machine,and scanning electron microscope.The results show that the Zr-Co-Cu alloys are mainly composed of the B2-ZrCo phase and the secondary phase Co2Zr,and the content of the Co2Zr phase increases with the increase of Cu content.Part of the Co2Zr phase precipitates along the grain boundary or inside the equiaxed B2 phase particles.Also with the increase of Cu content,both the yield strength and elastic limit of the material increase.The higher strength of Zr45Co45Cu10and Zr44Co44Cu12alloys is attributed to the grain refinement of the B2 phase and the strengthening effect of the secondary phase Co2Zr.The larger toughness values of Zr46Co46Cu8and Zr45Co45Cu10alloys indicate that these two alloys are safe and reliable in practical application.The fracture mechanism of Zr46Co46Cu8and Zr45Co45Cu10alloys is mainly ductile fracture,while the fracture mechanism of Zr44Co44Cu12alloy is mainly ductile fracture supplemented by intergranular fracture.

KeyWords AITranslate

Zr-Co-Cu alloy microstructure mechanical property work hardening

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Basic Information:

DOI：

Chinese Library Classification Number:TG146.2[金属学及工艺—金属材料]

Citation Information:

The microstructure and mechanical properties of B2-type as-cast Zr46Co46Cu8,Zr45Co45Cu10and Zr44Co44Cu12alloys were studied by X-ray diffractometer,optical microscope,electro-mechanical universal testing machine,and scanning electron microscope.The results show that the Zr-Co-Cu alloys are mainly composed of the B2-ZrCo phase and the secondary phase Co2Zr,and the content of the Co2Zr phase increases with the increase of Cu content.Part of the Co2Zr phase precipitates along the grain boundary or inside the equiaxed B2 phase particles.Also with the increase of Cu content,both the yield strength and elastic limit of the material increase.The higher strength of Zr45Co45Cu10and Zr44Co44Cu12alloys is attributed to the grain refinement of the B2 phase and the strengthening effect of the secondary phase Co2Zr.The larger toughness values of Zr46Co46Cu8and Zr45Co45Cu10alloys indicate that these two alloys are safe and reliable in practical application.The fracture mechanism of Zr46Co46Cu8and Zr45Co45Cu10alloys is mainly ductile fracture,while the fracture mechanism of Zr44Co44Cu12alloy is mainly ductile fracture supplemented by intergranular fracture.

quote

GB/T 7714-2015 [1] DONG Hong-feng, MENG Fan-ying, LIU Ya-ling, et al. Study on Microstructure and Mechanical Properties of B2-type As-cast Zr-Co-Cu Alloys[J]. Rare Metals and Cemented Carbides, 2022(5): 82-88.
MLA [1] DONG Hong-feng, et al., "Study on Microstructure and Mechanical Properties of B2-type As-cast Zr-Co-Cu Alloys." Rare Metals and Cemented Carbides, no. 5, 2022, pp. 82-88.
APA [1] DONG Hong-feng, MENG Fan-ying, LIU Ya-ling, ZHANG Wei, WANG Lin, WU Jun-xia, & LI Pei-you. (2022). Study on Microstructure and Mechanical Properties of B2-type As-cast Zr-Co-Cu Alloys. Rare Metals and Cemented Carbides(5), 82-88.
IEEE [1] DONG Hong-feng, MENG Fan-ying, LIU Ya-ling, ZHANG Wei, WANG Lin, WU Jun-xia, and LI Pei-you, "Study on Microstructure and Mechanical Properties of B2-type As-cast Zr-Co-Cu Alloys," Rare Metals and Cemented Carbides, no. 5, pp. 82-88, 2022. keywords: {Zr-Co-Cu alloy;microstructure;mechanical property;work hardening}