双组分无序晶体的异常硬化

IF 0.6 4区材料科学 Q4 CRYSTALLOGRAPHY

Crystallography Reports Pub Date : 2024-11-14 DOI:10.1134/S1063774524601898

B. V. Petukhov

{"title":"双组分无序晶体的异常硬化","authors":"B. V. Petukhov","doi":"10.1134/S1063774524601898","DOIUrl":null,"url":null,"abstract":"<p>The nature of increasing the strength of disordered two-component solid solutions in comparison with materials consisting of atoms of one component is studied. For this purpose, the contribution of extreme fluctuations in the distribution of solution atoms, which create obstacles for the movement of dislocation kinks, is calculated. It is shown that the slow (power-law) decrease in the probability of large delays on such obstacles leads to anomalous kinetics of kinks. It is accompanied by a slowdown of dislocation motion. This may be the reason for the hardening of the material.</p>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"69 5","pages":"742 - 749"},"PeriodicalIF":0.6000,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Anomalous Hardening of Two-Component Disordered Crystals\",\"authors\":\"B. V. Petukhov\",\"doi\":\"10.1134/S1063774524601898\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The nature of increasing the strength of disordered two-component solid solutions in comparison with materials consisting of atoms of one component is studied. For this purpose, the contribution of extreme fluctuations in the distribution of solution atoms, which create obstacles for the movement of dislocation kinks, is calculated. It is shown that the slow (power-law) decrease in the probability of large delays on such obstacles leads to anomalous kinetics of kinks. It is accompanied by a slowdown of dislocation motion. This may be the reason for the hardening of the material.</p>\",\"PeriodicalId\":527,\"journal\":{\"name\":\"Crystallography Reports\",\"volume\":\"69 5\",\"pages\":\"742 - 749\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2024-11-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Crystallography Reports\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1063774524601898\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CRYSTALLOGRAPHY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystallography Reports","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1063774524601898","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}

引用次数: 0

摘要

与由单组分原子组成的材料相比，研究了无序双组分固溶体强度增加的性质。为此，计算了溶液原子分布极端波动的贡献，这种波动为位错扭结的移动制造了障碍。结果表明，这种障碍物上大延迟概率的缓慢（幂律）下降导致了扭结的反常动力学。同时还伴随着位错运动的减慢。这可能是材料硬化的原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Anomalous Hardening of Two-Component Disordered Crystals

查看原文本刊更多论文

Anomalous Hardening of Two-Component Disordered Crystals

The nature of increasing the strength of disordered two-component solid solutions in comparison with materials consisting of atoms of one component is studied. For this purpose, the contribution of extreme fluctuations in the distribution of solution atoms, which create obstacles for the movement of dislocation kinks, is calculated. It is shown that the slow (power-law) decrease in the probability of large delays on such obstacles leads to anomalous kinetics of kinks. It is accompanied by a slowdown of dislocation motion. This may be the reason for the hardening of the material.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Crystallography Reports 化学-晶体学

CiteScore

1.10

自引率

28.60%

发文量

审稿时长

4-8 weeks

期刊介绍： Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.