Creep behaviour of Q245R steel at 550 ℃

IF 1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials at High Temperatures Pub Date : 2023-04-11 DOI:10.1080/09603409.2023.2201713

Jinquan Guo, Chao Tang, Fang Wang, K. Liu, Jingwei Zhang, H. Lai

引用次数: 0

Abstract

ABSTRACT Q245R steel has good heat and corrosion resistant and is used in various applications, such as reactors, regenerators, reformed gas steam generators, and other equipment. In this study, the creep behaviour of Q245R steel at the temperature of 550 ℃ is investigated. In addition to the modified Kachanov-Robotnov (K-R) method, the traditional and modified θ projection methods were employed to establish the creep constitutive equations of Q245R steel. The results revealed that at small strains, the creep prediction curve was in good agreement with the test curve, and the prediction accuracy of the modified θ projection method was better than that of the other two models.

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550℃时Q245R钢的蠕变行为

Q245R钢具有良好的耐热性和耐腐蚀性，广泛应用于反应器、蓄热器、重整燃气蒸汽发生器等设备中。本文研究了550℃时Q245R钢的蠕变行为。在改进Kachanov-Robotnov (K-R)方法的基础上，采用传统的θ投影法和改进的θ投影法建立了Q245R钢的蠕变本构方程。结果表明，在小应变下，蠕变预测曲线与试验曲线吻合较好，修正θ投影法的预测精度优于其他两种模型。

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

Materials at High Temperatures 工程技术-材料科学：综合

CiteScore

1.90

自引率

15.40%

发文量

审稿时长

>12 weeks

期刊介绍： Materials at High Temperatures welcomes contributions relating to high temperature applications in the energy generation, aerospace, chemical and process industries. The effects of high temperatures and extreme environments on the corrosion and oxidation, fatigue, creep, strength and wear of metallic alloys, ceramics, intermetallics, and refractory and composite materials relative to these industries are covered. Papers on the modelling of behaviour and life prediction are also welcome, provided these are validated by experimental data and explicitly linked to actual or potential applications. Contributions addressing the needs of designers and engineers (e.g. standards and codes of practice) relative to the areas of interest of this journal also fall within the scope. The term ''high temperatures'' refers to the subsequent temperatures of application and not, for example, to those of processing itself. Materials at High Temperatures publishes regular thematic issues on topics of current interest. Proposals for issues are welcomed; please contact one of the Editors with details.