Study on laves phase precipitation induced by transition elements in RHEAs coatings on Ti-6Al-4 V surface: Microstructure and tribological behaviors

IF 4.8 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Characterization Pub Date : 2025-04-19 DOI:10.1016/j.matchar.2025.115069

Shuo Wang, Xiufang Cui, Guo Jin, Wei Zheng, Yufei Liu, Shengming Wu, Zilong Wu, Hongge Liu, Junyan Wang

{"title":"Study on laves phase precipitation induced by transition elements in RHEAs coatings on Ti-6Al-4 V surface: Microstructure and tribological behaviors","authors":"Shuo Wang, Xiufang Cui, Guo Jin, Wei Zheng, Yufei Liu, Shengming Wu, Zilong Wu, Hongge Liu, Junyan Wang","doi":"10.1016/j.matchar.2025.115069","DOIUrl":null,"url":null,"abstract":"<div><div>Refractory elements typically form Laves phases when combined with transition elements, significantly contributing to wear resistance by altering the phase composition. The Ti-Al-Zr-V-Ni system is designed to facilitate the preparation of RHEAs coating on TC4 surface using laser cladding technology, with a focus on exploring its phase composition and microstructure transformation. Additionally, an in-depth analysis was conducted on the friction behavior at both room temperature and 600 °C. This paper provides theoretical guidance for RHEAs coating design and friction application. It has been observed that the Laves phase grows in proximity to the BCC main phase within the Ti-Al-Zr-V-Ni coating, and the interface between these two phases is considered semi-coherent, thereby ensuring excellent interfacial stability. Laves phase provides T2 coating with higher microhardness (624.40HV<sub>0.3</sub>) and better wear resistance at RT (wear rate of 1.78 × 10<sup>−13</sup>m<sup>3</sup>N<sup>−1</sup> m<sup>−1</sup>). The enhancement of wear resistance can be attributed to the suppression of micro-cracks, micron-scale delamination, and peeling by hard Laves phases. Additionally, the Ni-rich Laves phase induced the growth of a dense oxide glaze layer by high-temperature oxidation test. Laves phase also plays an additional lubrication role in high-temperature friction, thus obtaining excellent wear resistance in T2 coating at 600 °C (wear rate of 1.33 × 10<sup>−14</sup>m<sup>3</sup>N<sup>−1</sup> m<sup>−1</sup>).</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"224 ","pages":"Article 115069"},"PeriodicalIF":4.8000,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Characterization","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1044580325003584","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}

引用次数: 0

Abstract

Refractory elements typically form Laves phases when combined with transition elements, significantly contributing to wear resistance by altering the phase composition. The Ti-Al-Zr-V-Ni system is designed to facilitate the preparation of RHEAs coating on TC4 surface using laser cladding technology, with a focus on exploring its phase composition and microstructure transformation. Additionally, an in-depth analysis was conducted on the friction behavior at both room temperature and 600 °C. This paper provides theoretical guidance for RHEAs coating design and friction application. It has been observed that the Laves phase grows in proximity to the BCC main phase within the Ti-Al-Zr-V-Ni coating, and the interface between these two phases is considered semi-coherent, thereby ensuring excellent interfacial stability. Laves phase provides T2 coating with higher microhardness (624.40HV_0.3) and better wear resistance at RT (wear rate of 1.78 × 10⁻¹³m³N⁻¹ m⁻¹). The enhancement of wear resistance can be attributed to the suppression of micro-cracks, micron-scale delamination, and peeling by hard Laves phases. Additionally, the Ni-rich Laves phase induced the growth of a dense oxide glaze layer by high-temperature oxidation test. Laves phase also plays an additional lubrication role in high-temperature friction, thus obtaining excellent wear resistance in T2 coating at 600 °C (wear rate of 1.33 × 10⁻¹⁴m³N⁻¹ m⁻¹).

Abstract Image

查看原文本刊更多论文

ti - 6al - 4v表面过渡元素诱导的RHEAs涂层中叶片相析出的微观结构和摩擦学行为研究

当耐火材料与过渡元素结合时，通常会形成叶片相，通过改变相组成来显著提高耐磨性。设计Ti-Al-Zr-V-Ni体系，利用激光熔覆技术在TC4表面制备RHEAs涂层，重点研究其相组成和微观组织转变。此外，还对合金在室温和600℃下的摩擦行为进行了深入分析。本文为RHEAs涂层设计和摩擦应用提供了理论指导。在Ti-Al-Zr-V-Ni涂层中，Laves相生长在BCC主相附近，这两相之间的界面被认为是半相干的，从而保证了优异的界面稳定性。Laves相使T2涂层具有较高的显微硬度（624.40HV0.3）和较好的RT耐磨性（磨损率为1.78 × 10−13m3N−1 m−1）。耐磨性的增强可归因于硬Laves相抑制微裂纹、微米尺度的分层和剥落。高温氧化试验表明，富镍Laves相形成致密的氧化釉层。Laves相在高温摩擦中还具有额外的润滑作用，因此在600℃时T2涂层具有优异的耐磨性（磨损率为1.33 × 10−14m3N−1 m−1）。

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

Materials Characterization 工程技术-材料科学：表征与测试

CiteScore

7.60

自引率

8.50%

发文量

746

审稿时长

36 days

期刊介绍： Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials. The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal. The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include: Metals & Alloys Ceramics Nanomaterials Biomedical materials Optical materials Composites Natural Materials.