Review onrelationship between microstructure transformation and mechanical properties of T/P92 steel

NIE Ming; ZHANG Jian; HUANG Feng; OUYANG Liuzhang

English

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Review onrelationship between microstructure transformation and mechanical properties of T/P92 steel

Thermal Power Generation Vol. 43, Issue 8, Pages: 29-36(2014)

更新时间：2025-09-28

- Review onrelationship between microstructure transformation and mechanical properties of T/P92 steel
- 作者机构：
  
  1. 广东电网公司电力科学研究院
  2. 华南理工大学材料科学与工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG142.1
- Published：2014
- 稿件说明：
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NIE Ming, ZHANG Jian, HUANG Feng, et al. Review onrelationship between microstructure transformation and mechanical properties of T/P92 steel[J]. Thermal Power Generation, 2014, 43(8): 29-36.
DOI：

NIE Ming, ZHANG Jian, HUANG Feng, et al. Review onrelationship between microstructure transformation and mechanical properties of T/P92 steel[J]. Thermal Power Generation, 2014, 43(8): 29-36. DOI：

摘要

T/P92钢已成为超超临界火电机组用关键材料

被用于主蒸汽管道及再热器等。论述了T/P92钢在高温时效和蠕变过程中微观组织转变和力学性能的变化规律

重点总结了不同碳化物的析出顺序、尺寸和形态变化

并介绍了其微观结构与力学性能的内在联系。从析出相的演变规律、板条马氏体结构的退化及合金元素的转移等方面阐述了T/P92钢蠕变强度降低和材料过早失效的原因以及T/P92钢寿命预测方法的研究趋势。

Abstract

This paper reviews the laws in microstructure transformation and the mechanical properties changing for T/P92 steel during the aging and creep exposure process at high temperature.The precipitation sequences of various carbides and their variations in size and morphology are discussed in detail

as well as the inner link between the microstructure and the mechanical properties.Besides

the reasons for decline in creep strength and premature failure for T/P92 are discussed in terms of precipitations evolution

lath martensite degradation

alloying elements diffusion and so on.Finally

the methods for creep life prediction are reviewd and forecast.

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INFLUENCE OF LAVESPHASE AND Z-PHASE UPON CREEP OF P92 STEEL

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