9-12%回火马氏体钢高温蠕变微观机制研究进展  

Research progress on microscopic mechanism of high-temperature creep in 9-12%tempered martensitic steel

作　　者：孙悦 霍元明 严祯荣 何涛 王化南[2] 余雯翰 周子鑫 蒋安琪 王新宇 SUN Yue;HUO Yuan-ming;YAN Zhen-rong;HE Tao;WANG Hua-nan;YU Wen-Han;ZHOU Zi-xin;JIANG An-qi;WANG Xin-yu(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;Shanghai Institute of Special Equipment Inspection and Technical Research,Shanghai 200062,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201620 [2]上海市特种设备监督检验技术研究院,上海200062

出　　处：《塑性工程学报》2025年第4期1-14,共14页Journal of Plasticity Engineering

基　　金：上海市市场监督管理局公益科研计划项目(2024-44)。

摘　　要：近年来,为了提高电厂热效率和减少环境污染物的排放,现代电厂通常选择在更高的工作温度和压力下运行。这一趋势对材料的高温性能带来了前所未有的挑战。9-12%Cr回火马氏体钢因其出色的高温强度特性而成为关键候选材料。以9-12%Cr回火马氏体钢为例,旨在综述其在高温高压环境下的蠕变行为,重点探讨了以下几个方面:首先,系统总结了用于评估材料蠕变性能的测试方法,包括小冲孔蠕变测试、压痕蠕变测试、小环蠕变测试、双杆蠕变测试和单轴蠕变测试,这些测试方法为深入理解材料的蠕变特性提供了重要手段。其次深入分析了在蠕变测试过程中,该类型材料的微观结构演变规律,包括M23C6沉淀相、MX沉淀相、Z相、Laves相、晶粒结构以及位错的演变机制。最后探讨了蠕变过程中微观结构演变对材料蠕变强度和硬度的影响。In recent years,modern power plants often chose to operate at higher operating temperatures and pressures to increase the thermal efficiency of power plants and reduce the emission of environmental pollutants.This trend has posed unprecedented challenges to the high temperature performance of materials.9-12%Cr tempered martensitic steels are the key candidates due to their excellent high temperature strength properties.Taking 9-12%Cr tempered martensitic steel as an example,aiming to review its creep behavior under high temperature and high pressure environments,focusing on the following aspects:firstly,the test methods used to assess the creep properties of the material,including the small punch creep test(SPCT),the indentation creep test(ICT),the small ring creep test,the double-bar creep test and the uniaxial creep test,were systematically analyzed,which provide important means for an in-depth understanding of the creep properties of materials.Secondly,the microstructural evolution law of this type of material during creep testing was analyzed in depth,including the evolution mechanism of M23 C6 precipitated phase,MX precipitated phase,Z phase,Laves phase, grain structure and dislocations. Finally, the effect of microstructure evolution on the creep strength and hardness of the materialduring creep was discussed.

关 键 词：回火马氏体钢 蠕变 微观组织 强度 硬度 力学性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]