Microstructural Evolution of Irradiated Cr-Coated Zr-4 under In Situ Transmission Electron Microscopy Heating-Reference-Cited by-同舟云学术

Microstructural Evolution of Irradiated Cr-Coated Zr-4 under In Situ Transmission Electron Microscopy Heating

Published:2023-09-21 Issue:9 Volume:13 Page:1655
ISSN:2079-6412
Container-title:Coatings
language:en
Short-container-title:Coatings

Author:

Zhong Yuxin¹^ORCID,Wu Xiaoyong²,Wu Lu³,Zhao Sha¹,Su Hanxuan¹,Ning Zhien³,Zhang Wei³,Liu Ning¹,Yang Jijun¹

Affiliation:

1. Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610044, China

2. Laboratory of science and Technology on Reactor Fuel and Materials, Nuclear Power Institute of China, Chengdu 610213, China

3. The First Sub-Institute, Nuclear Power Institute of China, Chengdu 610213, China

Abstract

The structural evolution of Cr-coated Zr-4 after irradiation was studied via in situ TEM in the temperature range from room temperature to 1000 °C. The results show that the krypton bubbles appeared at ~700 °C, and their size increased with increasing temperatures. The grain size and shape of the irradiated Zr-4 substrate changed with increasing temperature, and finally, columnar crystals appeared, which was related to the compressive stress induced via irradiation. The Cr2Zr C14 phases formed at both the interface and the substrate at 700 °C and 1000 °C. Moreover, the accelerated failure process of irradiated Cr coating at high temperatures was observed via in situ TEM analysis.

Funder

National Natural Science Foundation of China

Publisher

MDPI AG

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces

Link

https://www.mdpi.com/2079-6412/13/9/1655/pdf

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