用预合金化 Ti-TiBw 复合粉末制备的 Ti-TiBw 复合材料的烧结行为和力学性能

IF 3.4 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Engineering Materials Pub Date : 2024-10-25 DOI:10.1002/adem.202401461

Lu Shi, Shufeng Li, Deng Pan, Lei Liu, Huiying Liu, Shaolong Li, Wenfei Huang, Dongxu Hui, Xin Li, Shaodi Wang, Xin Zhang, Bo Li

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引用次数: 0

摘要

预合金化粉末是粉末冶金中传统球磨工艺的一种很有前途的替代工艺，可以解决粉末混合不均匀和强化反应不完全等难题。本研究利用 Ti-TiBw 预合金复合粉末，在 950 至 1050 ℃ 的温度范围内采用火花等离子烧结 (SPS) 技术制备 Ti-TiBw 复合材料。通过比较预合金复合粉末和球磨预混合粉末，研究了烧结温度对 Ti-TiBw 复合材料微观结构和机械性能的影响。结果表明，复合材料具有优异的强度和延展性，1000 ℃ 时的极限拉伸强度为 676 兆帕，1050 ℃ 时的伸长率为 20.42%。相比之下，用预混合粉末制备的 Ti-TiBw 复合材料在 1050 °C 时实现了致密化，比用预合金粉末制备的复合材料高 50 °C。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Sintering Behavior and Mechanical Properties of Ti–TiBw Composites Prepared with Pre-alloyed Ti–TiBw Composite Powders

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Sintering Behavior and Mechanical Properties of Ti–TiBw Composites Prepared with Pre-alloyed Ti–TiBw Composite Powders

Prealloyed powders present a promising alternative to traditional ball milling processes in powder metallurgy, addressing challenges such as uneven powder mixing and incomplete reinforcement reactions. This study investigates the preparation of Ti–TiBw composites using spark plasma sintering (SPS) at temperatures ranging from 950 to 1050 °C, utilizing Ti–TiBw prealloyed composite powders. The effects of sintering temperature on the microstructure and mechanical properties of Ti–TiBw composites are studied, comparing prealloyed composite powders with ball-milled premixed powders. As a result, the composites exhibit excellent strength and ductility, with an ultimate tensile strength of 676 MPa at 1000 °C and an elongation of 20.42% at 1050 °C. Comparatively, Ti–TiBw composites prepared from premixed powders achieve densification at 1050 °C, 50 °C higher than those prepared from prealloyed powders.

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来源期刊

Advanced Engineering Materials 工程技术-材料科学：综合

CiteScore

5.70

自引率

5.60%

发文量

544

审稿时长

1.7 months

期刊介绍： Advanced Engineering Materials is the membership journal of three leading European Materials Societies - German Materials Society/DGM, - French Materials Society/SF2M, - Swiss Materials Federation/SVMT.