钛-锌-钯-铂高温形状记忆合金的相变和形状记忆效应与成分有关

IF 4.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Intermetallics Pub Date : 2024-09-18 DOI:10.1016/j.intermet.2024.108493

J.F. Xiao, Y.N. Shen, S. Matsunaga, Y. Yamabe-Mitarai

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引用次数: 0

摘要

钛-锌-钯-铂合金一直被认为是高温形状记忆合金（HT-SMA）的潜在候选材料。本研究制备了九种合金，以研究多组分合金化对相变和形状记忆效应的影响。首先对 Ti-Zr-Pd-Pt 四元合金中马氏体的结构相图进行了系统研究，以便为进一步研究提供见解和预测。相变分为三组：典型马氏体转变（MT）区、过冷控制相变区和扩散辅助相变区。随着 Zr 的添加量超过 25%，马氏体结构从 B19 转变为 B33。随着 Zr 含量的增加，铂含量对提高马氏体转变温度（MTT）的贡献越来越小。在形状恢复方面，Ti-10Zr-Pd-Pt 合金即使在 300 MPa 下也能获得超过 87% 的形状恢复，其中 Ti-10Zr-15Pt-35Pd 的恢复率最高，超过 97%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Composition dependence of phase transformation and shape memory effect of Ti-Zr-Pd-Pt high temperature shape memory alloys

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Composition dependence of phase transformation and shape memory effect of Ti-Zr-Pd-Pt high temperature shape memory alloys

Ti-Zr-Pd-Pt alloys have been considered as potential candidates for high-temperature shape memory alloys (HT-SMAs). In this study, nine alloys were prepared to investigate the effect of multi-component alloying on the phase transformation and shape memory effect. The structural phase diagram of martensite in Ti–Zr–Pd–Pt quaternary alloys was firstly systematically investigated to provide insights and predictions for further research. The phase transformation is divided into three groups: typical martensitic transformation (MT) area, supercooling-controlled phase transformation area and diffusion-assisted phase transformation area. The martensite structure changes from B19 to B33 with the addition of Zr over 25 %. The contribution of Pt contents to raising the martensitic transformation temperature (MTT) became less pronounced with increasing Zr contents. As for shape recovery, over 87 % shape recovery was obtained even under 300 MPa in Ti-10Zr-Pd-Pt alloys, among which Ti-10Zr-15Pt-35Pd presents the highest recovery ratio of over 97 %.

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来源期刊

Intermetallics 工程技术-材料科学：综合

CiteScore

7.80

自引率

9.10%

发文量

291

审稿时长

37 days

期刊介绍： This journal is a platform for publishing innovative research and overviews for advancing our understanding of the structure, property, and functionality of complex metallic alloys, including intermetallics, metallic glasses, and high entropy alloys. The journal reports the science and engineering of metallic materials in the following aspects: Theories and experiments which address the relationship between property and structure in all length scales. Physical modeling and numerical simulations which provide a comprehensive understanding of experimental observations. Stimulated methodologies to characterize the structure and chemistry of materials that correlate the properties. Technological applications resulting from the understanding of property-structure relationship in materials. Novel and cutting-edge results warranting rapid communication. The journal also publishes special issues on selected topics and overviews by invitation only.