应变速率对Ti-12.1Mo -1Fe亚稳β合金变形行为的影响

IF 1.1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Korean Journal of Metals and Materials Pub Date : 2023-10-05 DOI:10.3365/kjmm.2023.61.10.741

In Kyeong Jin, Dong-Geun Lee

{"title":"应变速率对Ti-12.1Mo -1Fe亚稳β合金变形行为的影响","authors":"In Kyeong Jin, Dong-Geun Lee","doi":"10.3365/kjmm.2023.61.10.741","DOIUrl":null,"url":null,"abstract":"The addition of expensive elements to β titanium alloys, which are widely used in the aerospace and automobile industries, causes their price to increase. Low-cost, high-strength alloy (Ti-12.1Mo-1.0Fe) was designed in this study and the compressive behaviors of this alloy were evaluated for application to automobile parts, etc. As a result of ambient compression in the quasi-static and dynamic strain rate range (1×10-4/s~6×103/s), twinning occurred at all strain rates, and in particular, adiabatic shear bands were observed, which cause cracks and fractures under dynamic strain rate conditions. In addition, when the relationship between these bands and mechanical characteristics was evaluated, an increase of compression strength and Vickers hardness was confirmed to occur, due to the strain rate hardening effect under compression loading. Some twins were formed by the deformation behavior during compression plastic deformation of the Ti-12.1Mo-1.0Fe alloy, and it exhibited excellent compression strength characteristics, showing a very high strain rate hardening effect at a high strain rate.","PeriodicalId":17894,"journal":{"name":"Korean Journal of Metals and Materials","volume":"1 1","pages":"0"},"PeriodicalIF":1.1000,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Strain Rate on Deformation Behaviors of Ti-12.1Mo -1Fe Metastable Beta Alloy\",\"authors\":\"In Kyeong Jin, Dong-Geun Lee\",\"doi\":\"10.3365/kjmm.2023.61.10.741\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The addition of expensive elements to β titanium alloys, which are widely used in the aerospace and automobile industries, causes their price to increase. Low-cost, high-strength alloy (Ti-12.1Mo-1.0Fe) was designed in this study and the compressive behaviors of this alloy were evaluated for application to automobile parts, etc. As a result of ambient compression in the quasi-static and dynamic strain rate range (1×10-4/s~6×103/s), twinning occurred at all strain rates, and in particular, adiabatic shear bands were observed, which cause cracks and fractures under dynamic strain rate conditions. In addition, when the relationship between these bands and mechanical characteristics was evaluated, an increase of compression strength and Vickers hardness was confirmed to occur, due to the strain rate hardening effect under compression loading. Some twins were formed by the deformation behavior during compression plastic deformation of the Ti-12.1Mo-1.0Fe alloy, and it exhibited excellent compression strength characteristics, showing a very high strain rate hardening effect at a high strain rate.\",\"PeriodicalId\":17894,\"journal\":{\"name\":\"Korean Journal of Metals and Materials\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2023-10-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Korean Journal of Metals and Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3365/kjmm.2023.61.10.741\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Korean Journal of Metals and Materials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3365/kjmm.2023.61.10.741","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

广泛用于航空航天和汽车工业的β钛合金中加入了昂贵的元素，导致其价格上涨。本研究设计了低成本、高强度的钛合金(Ti-12.1Mo-1.0Fe)，并对其抗压性能进行了评价，以期在汽车零部件等领域得到应用。在准静态和动态应变速率范围内(1×10-4/s~6×103/s)，由于环境压缩，在所有应变速率下均发生孪晶，特别是在动态应变速率条件下，观察到绝热剪切带，导致裂纹和断裂。此外，当评估这些条带与力学特性之间的关系时，由于压缩载荷下的应变速率硬化效应，证实了压缩强度和维氏硬度的增加。Ti-12.1Mo-1.0Fe合金在压缩塑性变形过程中变形行为形成孪晶，表现出优异的抗压强度特性，在高应变速率下表现出极高的应变速率硬化效应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Effect of Strain Rate on Deformation Behaviors of Ti-12.1Mo -1Fe Metastable Beta Alloy

The addition of expensive elements to β titanium alloys, which are widely used in the aerospace and automobile industries, causes their price to increase. Low-cost, high-strength alloy (Ti-12.1Mo-1.0Fe) was designed in this study and the compressive behaviors of this alloy were evaluated for application to automobile parts, etc. As a result of ambient compression in the quasi-static and dynamic strain rate range (1×10-4/s~6×103/s), twinning occurred at all strain rates, and in particular, adiabatic shear bands were observed, which cause cracks and fractures under dynamic strain rate conditions. In addition, when the relationship between these bands and mechanical characteristics was evaluated, an increase of compression strength and Vickers hardness was confirmed to occur, due to the strain rate hardening effect under compression loading. Some twins were formed by the deformation behavior during compression plastic deformation of the Ti-12.1Mo-1.0Fe alloy, and it exhibited excellent compression strength characteristics, showing a very high strain rate hardening effect at a high strain rate.

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

Korean Journal of Metals and Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-METALLURGY & METALLURGICAL ENGINEERING

CiteScore

1.80

自引率

58.30%

发文量

100

审稿时长

4-8 weeks

期刊介绍： The Korean Journal of Metals and Materials is a representative Korean-language journal of the Korean Institute of Metals and Materials (KIM); it publishes domestic and foreign academic papers related to metals and materials, in abroad range of fields from metals and materials to nano-materials, biomaterials, functional materials, energy materials, and new materials, and its official ISO designation is Korean J. Met. Mater.