Effects of high-temperature and high-pressure immersion corrosion durations on the fretting tribo-corrosion behaviors of Inconel 690 alloy

IF 5.3 1区 工程技术 Q1 ENGINEERING, MECHANICAL
Wear Pub Date : 2024-07-26 DOI:10.1016/j.wear.2024.205501
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引用次数: 0

Abstract

An Inconel 690 alloy tube acting as a steam generator tube has been widely applied in the second and third generations of nuclear power plants using pressurized water reactors. However, its entire service process is always accompanied by high-temperature and high-pressure (HTHP) liquid medium corrosion and various fretting mechanical damage behaviors. This study first immerses the Inconel 690 alloy tube in HTHP corrosive medium for different lengths of time (0, 4, 8, and 12 h); then, a fretting tribo-corrosion test rig is used to investigate the effect of different fretting mechanical parameters on the surface damage mechanism and electrochemical dynamic response of each test sample. Results show that the corrosion rate of the Inconel 690 alloy tube has significantly increased after being treated by HTHP immersion corrosion, which is mainly due to the pre-existing corrosion products.

高温和高压浸泡腐蚀持续时间对 Inconel 690 合金的摩擦三腐蚀行为的影响
作为蒸汽发生器管的 Inconel 690 合金管已广泛应用于使用压水反应堆的第二代和第三代核电站。然而,其整个服役过程始终伴随着高温高压(HTHP)液体介质腐蚀和各种烧蚀机械损伤行为。本研究首先将 Inconel 690 合金管浸泡在 HTHP 腐蚀介质中不同的时间长度(0、4、8 和 12 h),然后使用摩擦三腐蚀试验台研究不同摩擦机械参数对各试验样品表面损伤机制和电化学动态响应的影响。结果表明,Inconel 690 合金管在经过 HTHP 浸入腐蚀处理后,腐蚀速率显著增加,这主要是由于原有的腐蚀产物造成的。
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来源期刊
Wear
Wear 工程技术-材料科学:综合
CiteScore
8.80
自引率
8.00%
发文量
280
审稿时长
47 days
期刊介绍: Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.
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