Some studies on P91 steel and their weldments

被引：229

作者：

Pandey, Chandan ^{[1
]}

Mahapatra, Manas Mohan ^{[2
]}

Kumar, Pradeep ^{[1
]}

Saini, Nitin ^{[1
]}

机构：

[1] Indian Inst Technol Roorkee, Dept Mech & Ind Engn, Uttarakhand 247667, India

[2] Indian Inst Technol, Sch Mech Sci, Bhubaneswar 751013, Odisha, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 743卷

关键词：

P91; Normalizing; Tempering; Residual stress; Diffusible hydrogen; Weldments; MODIFIED 9CR-1MO STEEL; HEAT-AFFECTED ZONE; LONG-TERM CREEP; BRITTLE TRANSITION-TEMPERATURE; DIFFUSIBLE HYDROGEN CONTENT; FINITE-ELEMENT SIMULATION; WELDING RESIDUAL-STRESS; IV CRACKING BEHAVIOR; GAS TUNGSTEN ARC; GRADE; 91; STEEL;

D O I：

10.1016/j.jallcom.2018.01.120

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In present research article, microstructure evolution in P91 steel and their weldments are reviewed in as-virgin and heat treatment and creep exposure condition. The thermal stability of P91 steel is derived from solid solution strengthening, sub-grain hardening and precipitation hardening. The initial microstructure plays an important role in deciding the mechanical properties of P91 steel and their weldment in long-term ageing and creep exposure condition. Effects of various alloying elements present in P91 steel and their related phase have also been discussed in details. The role of grain coarsening, Cr/Fe ratio, lath widening and dislocation density on creep rupture life of base metal and weldments are discussed. The combined effects of lath martensitic microstructure, residual stress and diffusible hydrogen content on performance of P91 steel material are also discussed. (c) 2018 Elsevier B.V. All rights reserved.

引用

页码：332 / 364

页数：33

共 208 条

[1]

A. American N. Standard, 1999, PRACT LOC HEAR WELDS

[2] Creep fracture mechanism in welded joints of P91 steel [J].

Abd El-Azim, M. E. ;

El-Desoky, O. E. ;

Ruoff, H. ;

Kauffmann, F. ;

Roos, E. .

MATERIALS SCIENCE AND TECHNOLOGY, 2013, 29 (09) :1027-1033

[3] Microstructural instability of a welded joint in P91 steel during creep at 600°C [J].

Abd El-Azim, ME ;

Nasreldin, AM ;

Zies, G ;

Klenk, A .

MATERIALS SCIENCE AND TECHNOLOGY, 2005, 21 (07) :779-790

[4] Influence of heat input and post-weld heat treatment on boiler steel P91 (9Cr-1Mo-V-Nb) weld joints: Part 1 - Microstructure [J].

El-Mahallawi, I. (saiman@eng.cu.edu.eg), 2013, Maney Publishing (07) :23-31

[5]

Abd El-Rahman Abd El-Salam M., 2013, International Heat Treatment & Surface Engineering, V7, P32, DOI 10.1179/1749514813Z.00000000051

[6] Microstructure and creep strength of welds in advanced ferritic power plant steels [J].

Abe, F ;

Tabuchi, M .

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2004, 9 (01) :22-30

[7] Review of type IV cracking of weldments in 9-12%Cr creep strength enhanced ferritic steels [J].

Abson, D. J. ;

Rothwell, J. S. .

INTERNATIONAL MATERIALS REVIEWS, 2013, 58 (08) :437-473

[8] On the formation and growth of Mo-rich Laves phase particles during long-term creep of a 12% chromium tempered martensite ferritic steel [J].

Aghajani, A. ;

Richter, F. ;

Somsen, C. ;

Fries, S. G. ;

Steinbach, I. ;

Eggeler, G. .

SCRIPTA MATERIALIA, 2009, 61 (11) :1068-1071

[9] On the effect of long-term creep on the microstructure of a 12% chromium tempered martensite ferritic steel [J].

Aghajani, A. ;

Somsen, Ch. ;

Eggeler, G. .

ACTA MATERIALIA, 2009, 57 (17) :5093-5106

[10]

Albert G.K., 2014, INDIAN WELD J, V47, P101

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