深度调峰工况下电站锅炉耐热钢疲劳-蠕变交互作用研究进展

阿依多斯&#x000b7;托力肯; 刘雪敏; 吴元毅; 郭慧娜; 刘鹏; 吴玉新

doi:10.27022/j.issn2097-7697.2026.01.007

特种设备学报 ›› 2026, Vol. 1 ›› Issue (1) : 91-99. DOI: 10.27022/j.issn2097-7697.2026.01.007

专题综述

深度调峰工况下电站锅炉耐热钢疲劳-蠕变交互作用研究进展

阿依多斯·托力肯¹, 刘雪敏², 吴元毅³, 郭慧娜², 刘鹏⁴, 吴玉新³

作者信息 +

Research Progress on Fatigue-creep Interaction of Heat-resistant Steel for Utility Boilers under Deep Peak Shaving Conditions

AIDOS Tuoliken¹, LIU Xuemin², WU Yuanyi³, GUO Huina², LIU Peng⁴, WU Yuxin³

Author information +

文章历史 +

摘要

在“双碳”目标和能源转型背景下,燃煤火电机组由“基荷电源”向“调节性电源”转型,深度调峰与频繁启停成为新常态运行方式。由此导致电站锅炉承压部件长期偏离设计工况,在机械载荷与温度载荷交变同时耦合的热机械疲劳条件下,疲劳与蠕变交互作用会显著加速锅炉各类受热面的损伤与失效。不同的锅炉耐热面涉及材料众多,如15CrMoG(P12)、12Cr1MoVG、12Cr2MoG（P22）、10Cr9Mo1VNbN（P91）、10Cr9MoW2VNbBN（P92)、07Cr18Ni9NbCu3BN（Super304H）、07Cr25Ni21NbN（HR3C）等。然而,目前尚缺乏将上述多层次材料体系在深度调峰这一特定工况下的失效机理进行系统性对比的研究,为此本文按照低合金钢耐热钢、马氏体耐热钢及奥氏体耐热钢进行分类,重点分析不同代际材料在灵活运行条件下的损伤特征与失效机理。研究表明,在疲劳与蠕变交互作用下,上述材料在微观组织和析出相演化、循环变形行为及氧化辅助裂纹扩展方面存在明显差异。在此基础上,进一步结合我国现行GB/T 30580—2022《电站锅炉主要承压部件寿命评估技术导则》,讨论了基于线性累积损伤理论的寿命评估方法在深度调峰工况下的适用性与局限性,并展望了向物理机制非线性模型转型的必要性。

Abstract

Under the background of "double carbon" goal and energy transformation, coal-fired thermal power units are transformed from "base load power supply" to "regulatory power supply" and deep peak regulation and frequent start and stop have become the new normal operation mode. As a result, the pressure-bearing parts of the power plant boiler deviate from the design condition for a long time, under the thermo-mechanical fatigue condition of the alternating coupling of mechanical load and temperature load. The interaction between fatigue and creep significantly accelerates the damage and failure of materials commonly used in high temperature heating surfaces, headers and steam pipes, such as 15CrMoG (P12), 12Cr1MoVG, 12Cr2MoG (P22), 10Cr9Mo1VNbN (P91), 10Cr9MoW2VNbBN (P92), 07Cr18Ni9NbCu3BN (Super304H), 07Cr25Ni21NbN (HR3C). However, there is a lack of systematic comparative study on the failure mechanism of the above-mentioned material system under the specific condition of deep peak shaving. In this paper, low alloy steel heat-resistant steel, martensitic heat-resistant steel and austenitic heat-resistant steel are classified, the damage characteristics and failure mechanism of different generations of materials under flexible operation conditions are analyzed. The results show that under the interaction of fatigue and creep, the above materials have obvious differences in microstructure and precipitation phase evolution, cyclic deformation behavior and oxidation-assisted crack propagation. On this basis, combined with China's current GB/T 30580—2022 The technical guide for the life assessment of main pressure parts of power plant boiler, the applicability and limitations of the life assessment method based on the linear cumulative damage theory under deep peak-shaving conditions are discussed, and the necessity of transforming to the nonlinear model of physical mechanism is highlighted.

导出引用

阿依多斯·托力肯, 刘雪敏, 吴元毅, 郭慧娜, 刘鹏, 吴玉新. 深度调峰工况下电站锅炉耐热钢疲劳-蠕变交互作用研究进展[J]. 特种设备学报, 2026, 1(1): 91-99. https://doi.org/10.27022/j.issn2097-7697.2026.01.007

AIDOS Tuoliken, LIU Xuemin, WU Yuanyi, GUO Huina, LIU Peng, WU Yuxin. Research Progress on Fatigue-creep Interaction of Heat-resistant Steel for Utility Boilers under Deep Peak Shaving Conditions[J].Journal of Special Equipment, 2026, 1(1): 91-99. https://doi.org/10.27022/j.issn2097-7697.2026.01.007

中图分类号： X933.2

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