Microstructural investigations on simulated intercritical heat-affected zone of boron modified P91-steel

被引：68

作者：

Khajuria, Akhil ^{[1
]}

Akhtar, Modassir ^{[2
,3
]}

Bedi, Raman ^{[1
]}

Kumar, Rajneesh ^{[2
]}

Ghosh, Mainak ^{[2
]}

Das, C. R. ^{[4
]}

Albert, Shaju K. ^{[4
]}

机构：

[1] Dr BR Ambedkar Natl Inst Technol, Dept Mech Engn, Jalandhar 144011, Punjab, India

[2] CSIR Natl Met Lab, Mat Engn Div, Jamshedpur, Bihar, India

[3] Natl Inst Technol Warangal, Dept Met & Mat Engn, Hanamkonda, India

[4] Indira Gandhi Ctr Atom Res, Met & Mat Grp, Kalpakkam, Tamil Nadu, India

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2020年 / 36卷 / 13期

关键词：

P91-steel; P91B-steel; effect of boron; Gleeble simulation; intercritical heat-affected zone; electron back-scattered diffraction; recrystallisation; impression creep; IV CRACKING; STEEL; CREEP; MARTENSITE; FERRITE; EBSD; EVOLUTION; WELD; HAZ;

D O I：

10.1080/02670836.2020.1784543

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conventional P91 and boron modified P91-steels were considered in the present investigation. Using Gleeble, weld intercritical heat-affected zone (ICHAZ) was processed. Conventional microscopy was done along with electron back-scattered diffraction for both specimens. Lath boundary of martensite was more, and preferably oriented for P91B-ICHAZ than P91-ICHAZ. Lattice strain was high and lath mobility was low for P91B-ICHAZ in comparison to P91-ICHAZ. Large fraction of ferritic grain structure (39.1%) and small fraction of fresh martensitic grain structure (9.5%) in P91-ICHAZ, whereas small fraction of ferritic grain structure (10.7%) and large fraction of fresh martensitic grain structure (32.7%) in P91B-ICHAZ was observed. However, tempered martensite exhibited meager variation. These differences between ICHAZ simulations were attributed to the presence of 100ppm-boron in P91B-steel.

引用

页码：1407 / 1418

页数：12

共 37 条

[1] Microstructure evolution in HAZ and suppression of Type IV fracture in advanced ferritic power plant steels [J].

Abe, F. ;

Tabuchi, M. ;

Tsukamoto, S. ;

Shirane, T. .

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2010, 87 (11) :598-604

[2]

Abe F, 2014, ENERGY MATERIALS CONFERENCE PROCEEDINGS 2014, P129

[3]

Akhtar Modassir, 2020, Manufacturing Engineering. Select Proceedings of CPIE 2019. Lecture Notes on Multidisciplinary Industrial Engineering (LNMUINEN), P255, DOI 10.1007/978-981-15-4619-8_20

[4] Effects of boron modifications on phase nucleation and dissolution temperatures and mechanical properties in 9%Cr steels: sensitivity and stability [J].

Akhtar, Modassir ;

Khajuria, Akhil ;

Pandey, Manish Kumar ;

Ahmed, Iqbal .

MATERIALS RESEARCH EXPRESS, 2019, 6 (12)

[5] Effects of prior austenite grain size on impression creep and microstructure in simulated heat affected zones of boron modified P91 steels [J].

Akhtar, Modassir ;

Khajuria, Akhil .

MATERIALS CHEMISTRY AND PHYSICS, 2020, 249

[6] Effects of boron modifications on phase nucleation and dissolution temperatures and mechanical properties in 9%Cr steels: alloy design [J].

Akhtar, Modassir ;

Khajuria, Akhil ;

Pandey, Manish Kumar ;

Ahmed, Iqbal ;

Bedi, Raman .

MATERIALS RESEARCH EXPRESS, 2019, 6 (12)

[7] Probing true creep-hardening interaction in weld simulated heat affected zone of P91 steels [J].

Akhtar, Modassir ;

Khajuria, Akhil .

JOURNAL OF MANUFACTURING PROCESSES, 2019, 46 :345-356

[8] Probing True Microstructure-Hardening Relationship in Simulated Heat Affected Zone of P91B Steels [J].

Akhtar, Modassir ;

Khajuria, Akhil .

METALLOGRAPHY MICROSTRUCTURE AND ANALYSIS, 2019, 8 (05) :656-677

[9] Evolution of Microstructure during Welding Simulation of Boron Modified P91 Steel [J].

Akhtar, Modassir ;

Khajuria, Akhil ;

Kumar, V. S. ;

Gupta, R. K. ;

Albert, Shaju K. .

PHYSICS OF METALS AND METALLOGRAPHY, 2019, 120 (07) :672-685

[10] Phase transformations and numerical modelling in simulated HAZ of nanostructured P91B steel for high temperature applications [J].

Akhtar, Modassir ;

Khajuria, Akhil ;

Sahu, Jitendra K. ;

Swaminathan, J. ;

Kumar, Rajneesh ;

Bedi, Raman ;

Albert, Shaju K. .

APPLIED NANOSCIENCE, 2018, 8 (07) :1669-1685

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