利用原位 EBSD 揭示超合金在中间温度下由基体位错主导的拉伸变形

IF 8.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Letters Pub Date : 2024-01-16 DOI:10.1080/21663831.2024.2304255

Pengfei Qu, Wenchao Yang, Chen Liu, Jiarun Qin, Qiang Wang, Jun Zhang, Lin Liu

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引用次数: 0

摘要

传统观点认为，镍基单晶超合金在中间温度下的主要变形机制（包括拉伸和蠕变）是堆叠断层剪切γ'相......这项研究首次揭示了中间温度下拉伸和拉伸蠕变的主要变形机制之间的差异。

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Tensile deformation dominated by matrix dislocations at intermediate temperatures revealed using in-situ EBSD in superalloys

The traditional view holds that the dominant deformation mechanism of Ni-based single crystal superalloys at intermediate temperatures (both in tension and creep) is stacking fault shearing γ’ phas...For the first time, this work reveals the differences in the dominant deformation mechanisms between tension and tensile creep at intermediate temperatures.

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来源期刊

Materials Research Letters Materials Science-General Materials Science

CiteScore

12.10

自引率

3.60%

发文量

审稿时长

3.3 months

期刊介绍： Materials Research Letters is a high impact, open access journal that focuses on the engineering and technology of materials, materials physics and chemistry, and novel and emergent materials. It supports the materials research community by publishing original and compelling research work. The journal provides fast communications on cutting-edge materials research findings, with a primary focus on advanced metallic materials and physical metallurgy. It also considers other materials such as intermetallics, ceramics, and nanocomposites. Materials Research Letters publishes papers with significant breakthroughs in materials science, including research on unprecedented mechanical and functional properties, mechanisms for processing and formation of novel microstructures (including nanostructures, heterostructures, and hierarchical structures), and the mechanisms, physics, and chemistry responsible for the observed mechanical and functional behaviors of advanced materials. The journal accepts original research articles, original letters, perspective pieces presenting provocative and visionary opinions and views, and brief overviews of critical issues.