High-temperature dislocation-precipitate interactions in Al alloys: An In situ transmission electron microscopy deformation study

B. G. Clark; I. M. Robertson; L. M. Dougherty

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High-temperature dislocation-precipitate interactions in Al alloys: An In situ transmission electron microscopy deformation study

机译：铝合金中高温位错-析出物相互作用的原位透射电子显微镜变形研究

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The fundamental processes controlling the high-temperature interaction of dislocations with precipitates in Al-alloys were investigated in real time by deforming specimens in situ in the transmission electron microscope at elevated temperature. The observations support a bypass mechanism involving the interaction of lattice dislocations with the precipitate-matrix interface dislocations, where the rate-limiting step in the interaction is the release of the dislocation from the particle. These observations are discussed in relation to high-temperature deformation processes and models.

机译：通过在高温下在透射电子显微镜中原位变形试样，实时研究了控制位错与铝合金中沉淀物的高温相互作用的基本过程。观察结果支持了一种旁路机制，涉及晶格位错与沉淀物-基质界面位错的相互作用，其中相互作用的限速步骤是位错从颗粒中释放出来。讨论了有关高温变形过程和模型的这些观察结果。

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来源
《Journal of Materials Research》 |2005年第7期|p.1792-1801|共10页
作者
B. G. Clark; I. M. Robertson; L. M. Dougherty;
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作者单位

Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;
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High-temperature dislocation-precipitate interactions in Al alloys: An In situ transmission electron microscopy deformation study

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