吸氧、吸氮和吸氢对淬火 CP Ti 和 Ti6Al4V 合金相变和机械性能影响的比较研究

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Chemistry and Physics Pub Date : 2024-11-05 DOI:10.1016/j.matchemphys.2024.130111

N. Mguni , M.N. Mathabathe , M.B. Shongwe , A.S. Bolokang

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引用次数: 0

摘要

研究了商用纯 Ti 和 Ti6Al4V 金属水淬后的微观结构和机械性能。对淬火样品进行了氮（N）、氧（O）和氢（H）分析，以确定杂质对相变和机械性能的影响。结果发现，尽管杂质的增量可以忽略不计，但它们不能归因于结构变化，而是快速冷却引起的可蜕变 FCC 的稳定化。可蜕变 FCC 相的形成归因于水淬时的高冷却速率引起的应力。高温淬火对晶体结构、微观结构和机械性能有显著影响。

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Comparison study on the effect of oxygen, nitrogen and hydrogen absorption on phase transformation and mechanical properties of quenched CP Ti and Ti6Al4V alloy

Microstructures and mechanical properties of commercial pure Ti and Ti6Al4V metal were studied after water quenching. The nitrogen (N), oxygen (O) and hydrogen (H) analysis was conducted on the quenched samples to establish the effect of impurities on phase transformation and mechanical properties. It was found that despite some negligible increment on the impurities, they could not be attributed to structural change but rather stabilization of the metastable FCC induced by rapid cooling. The formation of the metastable FCC phases was attributed to stresses induced by high cooling rates upon water quenching. Quenching from high temperatures has a significant effect on the crystal structure, microstructure and mechanical properties.

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来源期刊

Materials Chemistry and Physics 工程技术-材料科学：综合

CiteScore

8.70

自引率

4.30%

发文量

1515

审稿时长

69 days

期刊介绍： Materials Chemistry and Physics is devoted to short communications, full-length research papers and feature articles on interrelationships among structure, properties, processing and performance of materials. The Editors welcome manuscripts on thin films, surface and interface science, materials degradation and reliability, metallurgy, semiconductors and optoelectronic materials, fine ceramics, magnetics, superconductors, specialty polymers, nano-materials and composite materials.