冷加工对\(2\tfrac{1}{4}\) cr - 1mo钢抗氧化性能的影响

IF 2.1 3区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Oxidation of Metals Pub Date : 1985-02-01 DOI:10.1007/BF01095805

A. S. Khanna, J. B. Gnanamoorthy

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引用次数: 17

摘要

冷加工对21/4 Cr-1 Mo钢在1atm压力下在400 ~ 950℃的纯氧中氧化速率的影响研究了C在短时间内的暴露时间(最大。4人力资源)。试样经冷轧加工后，加工精度达到90%。结果表明，在700℃以下，冷加工对氧化动力学的影响可以忽略不计。C，超过C，氧化一般会减少。这种效应在摄氏900度时明显。抗氧化能力的增强是由于铬在冷加工材料中的扩散速度比退火材料快，导致富铬尖晶石的形成，有助于减缓合金的氧化。对所有在900℃氧化的样品的检验证实了这一发现。C通过光学，EPMA, SEM和EDAX分析。

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Effect of cold work on the oxidation resistance of\(2\tfrac{1}{4}\) Cr-1 Mo steel

The effect of cold work on the oxidation rate of 21/4 Cr-1 Mo steel in pure oxygen at 1 atm pressure at temperatures ranging from 400 to 950?C has been studied for short exposure periods (max. 4 hr). The specimens had been cold worked up to 90% by cold rolling. The results indicate negligible effect of cold work on the oxidation kinetics up to 700?C, beyond which there is general reduction in oxidation. The effect was pronounced at 900?C. The increased resistance to oxidation has been attributed to the faster diffusion of chromium in the cold-worked material compared to the annealed one, leading to the formation of a chromium-rich spinel which helps in slowing down the oxidation of the alloy. The findings have been corroborated by the examination of all samples oxidized at 900?C by optical, EPMA, SEM, and EDAX analyses.

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来源期刊

Oxidation of Metals 工程技术-冶金工程

CiteScore

5.10

自引率

9.10%

发文量

审稿时长

2.2 months

期刊介绍： Oxidation of Metals is the premier source for the rapid dissemination of current research on all aspects of the science of gas-solid reactions at temperatures greater than about 400˚C, with primary focus on the high-temperature corrosion of bulk and coated systems. This authoritative bi-monthly publishes original scientific papers on kinetics, mechanisms, studies of scales from structural and morphological viewpoints, transport properties in scales, phase-boundary reactions, and much more. Articles may discuss both theoretical and experimental work related to gas-solid reactions at the surface or near-surface of a material exposed to elevated temperatures, including reactions with oxygen, nitrogen, sulfur, carbon and halogens. In addition, Oxidation of Metals publishes the results of frontier research concerned with deposit-induced attack. Review papers and short technical notes are encouraged.