EFFECT OF SURFACE MODIFICATION BY NITROGEN AND OXYGEN ON MECHANICAL PERFORMANCE OF Zr-1%Nb ALLOY

IF 0.5 Q4 PHYSICS, NUCLEAR

Problems of Atomic Science and Technology Pub Date : 2024-04-11 DOI:10.46813/2024-150-096

V. Trush, P. Stoev, V. Fedirko, M. Tikhonovsky, I. Pohrelyuk, A. Luk’yanenko, S. Lavrys, A.E. Stetsko, V. Korendiy, I.Z. Butrynskyi

引用次数: 0

Abstract

The effect of surface modification by oxygen and nitrogen from a controlled gaseous medium on the fatigue life under cyclic and long-term static loading of Zr-1%Nb alloy thin-sheet samples was studied. Positive effect of gas nitriding and thermal oxidation on mechanical and fatigue performance under cyclic and static loading of Zr-1%Nb alloy was shown: under pure bending – by ~23%; under cyclic stretching – by ~25% and under long-term static loading in air with exposure of 100 h at room temperature – by ~12% and at a temperature of 380 °С  by ~6%. It was established that oxidation and nitriding effectively improve fatigue life and fracture stresses under long-term static loading of Zr-1%Nb alloy thin-sheet.

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硝基和氧表面改性对 Zr-1%Nb 合金机械性能的影响

研究了受控气体介质中的氧气和氮气对 Zr-1%Nb 合金薄片样品在循环和长期静态负载下的疲劳寿命的表面改性效果。气体氮化和热氧化对 Zr-1%Nb 合金在循环和静态载荷下的机械和疲劳性能产生了积极影响：在纯弯曲条件下--提高了 ~23%；在循环拉伸条件下--提高了 ~25%；在空气中长期静态载荷下，在室温下暴露 100 小时--提高了 ~12%，在温度为 380 °С  时提高了 ~6%。研究证实，氧化和氮化可有效提高 Zr-1%Nb 合金薄板在长期静态载荷下的疲劳寿命和断裂应力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Problems of Atomic Science and Technology 物理-核科学技术

CiteScore

0.70

自引率

50.00%

发文量

审稿时长

2-4 weeks

期刊介绍： The journal covers the following topics: Physics of Radiation Effects and Radiation Materials Science; Nuclear Physics Investigations; Plasma Physics; Vacuum, Pure Materials and Superconductors; Plasma Electronics and New Methods of Acceleration.