Nb含量和水淬对放电等离子烧结Ti-Nb合金组织和力学性能的影响

IF 1.9 4区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Powder Metallurgy Pub Date : 2022-01-28 DOI:10.1080/00325899.2022.2029303

Nattawood Suesawadwanid, A. Khantachawana, Kasama Srirussamee, K. Kondoh

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引用次数: 4

摘要

摘要钛铌（Ti-Nb）合金由于其优越的力学性能和生物相容性，已被广泛研究用于医疗植入物。然而，应力屏蔽效应仍然是一个挑战。研究了Nb含量和α′′形成的增强对Ti-xNb合金（x = 0、5、15和25%）。β相的水淬灭在Ti-5Nb和Ti-15Nb样品中诱导了α′′相的形成，从而降低了它们的杨氏模量值，但在商业纯钛（CP-Ti）和Ti-25Nb中没有观察到。结果表明，水淬热处理诱导了α′′相的形成，可用于调整SPS制备的Ti-Nb合金的性能。该技术也可用于在高β-稳定剂含量下提高材料延展性，如在Ti-25Nb样品中观察到的。

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Effect of Nb Content and water quenching on microstructure and mechanical properties of Ti-Nb alloys fabricated by spark plasma sintering

ABSTRACT Titanium-niobium (Ti-Nb) alloys have been extensively studied for medical implants due to their advantageous mechanical properties and biocompatibility. However, the stress shielding effect remains a challenge. This research investigated the effects of Nb content and enhancement of α′′ formation on the mechanical properties of Ti-xNb alloys (x = 0, 5, 15 and 25%) fabricated by spark plasma sintering. Water quenching from the β phase induced α′′ phase formation in Ti-5Nb and Ti-15Nb samples, thereby reducing their Young’s modulus values but was not observed in commercially pure titanium (CP-Ti) and Ti-25Nb. Results showed that heat treatment with water quenching induced α′′ phase formation and can be used to tailor the properties of Ti-Nb alloys fabricated by SPS. This technique can also be used to enhance material ductility at high β-stabilizer content, as observed in Ti-25Nb samples.

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来源期刊

Powder Metallurgy 工程技术-冶金工程

CiteScore

2.90

自引率

7.10%

发文量

审稿时长

3 months

期刊介绍： Powder Metallurgy is an international journal publishing peer-reviewed original research on the science and practice of powder metallurgy and particulate technology. Coverage includes metallic particulate materials, PM tool materials, hard materials, composites, and novel powder based materials.