Study of morphology, chemical composition and corrosion resistance of «TiC–NiTi» hard alloy modified by powerful ion beam

Omsk Scientific Bulletin Pub Date : 1900-01-01 DOI:10.25206/1813-8225-2022-182-33-37

A. Badamshin, A. O. Leptyuk

{"title":"Study of morphology, chemical composition and corrosion resistance of «TiC–NiTi» hard alloy modified by powerful ion beam","authors":"A. Badamshin, A. O. Leptyuk","doi":"10.25206/1813-8225-2022-182-33-37","DOIUrl":null,"url":null,"abstract":"The article presents the results of a study of the effect of ion–beam treatment with a high–power ion beam (HPIB) on the change in topography, morphology, chemical composition and corrosion resistance of the surface layers of a tungsten–free hard alloy of the «TiC–NiTi» system. The samples are characterized by scanning electron microscopy, energy dispersive X–ray analysis, scanning probe microscopy, and metallographic analysis. It is revealed that due to the impact of HPIB, the surface layer of the sample undergoes melting with the formation of extended microcracks. At the same time, a decrease in the oxygen concentration from 24,6 to 13,7 at. % is recorded in the surface layer of the sample, and at some points on the sample it is completely absent. This result indicates the dissociation of titanium oxide under the influence of temperatures arising during HPIB irradiation. It is most likely that it is the thermal dissociation of titanium oxide and melting of the sample surface that are the main reasons for the increase in the corrosion resistance of the «TiC–NiTi» system alloy.","PeriodicalId":107042,"journal":{"name":"Omsk Scientific Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Omsk Scientific Bulletin","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.25206/1813-8225-2022-182-33-37","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

The article presents the results of a study of the effect of ion–beam treatment with a high–power ion beam (HPIB) on the change in topography, morphology, chemical composition and corrosion resistance of the surface layers of a tungsten–free hard alloy of the «TiC–NiTi» system. The samples are characterized by scanning electron microscopy, energy dispersive X–ray analysis, scanning probe microscopy, and metallographic analysis. It is revealed that due to the impact of HPIB, the surface layer of the sample undergoes melting with the formation of extended microcracks. At the same time, a decrease in the oxygen concentration from 24,6 to 13,7 at. % is recorded in the surface layer of the sample, and at some points on the sample it is completely absent. This result indicates the dissociation of titanium oxide under the influence of temperatures arising during HPIB irradiation. It is most likely that it is the thermal dissociation of titanium oxide and melting of the sample surface that are the main reasons for the increase in the corrosion resistance of the «TiC–NiTi» system alloy.

查看原文本刊更多论文

强离子束改性TiC-NiTi硬质合金的形貌、化学成分及耐蚀性研究

本文研究了高功率离子束处理对“TiC-NiTi”系无钨硬质合金表层形貌、形貌、化学成分和耐蚀性变化的影响。通过扫描电子显微镜、能量色散x射线分析、扫描探针显微镜和金相分析对样品进行了表征。结果表明，由于HPIB的影响，试样的表层发生了熔化，形成了扩展的微裂纹。同时，氧浓度从24.6降至13.7 At。%记录在样品的表层，在样品的某些点上它是完全不存在的。这一结果表明，在HPIB辐照过程中，氧化钛的解离受到温度的影响。很可能是氧化钛的热解离和试样表面的熔化是«TiC-NiTi»系合金耐蚀性提高的主要原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Omsk Scientific Bulletin

自引率

0.00%

发文量