some studies on p91 steel and their weldments
some studies on p91 steel and their weldments
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Some studies on P91 steel and their weldments - ScienceDirectApr 30, 2018 · The residual stress and microstructure of P91 steel weldment can be optimized by using the proper PWHT as suggested by the researchers [29,99] but the hydrogen induced cracking (HIC) in P91 steel weld is a serious problem. The researchers have recommended the use of low hydrogen electrode, preheating and post weld heating to avoid the HIC in P91 weldments.Cited by: 74Publish Year: 2018Author: Chandan Pandey, Manas Mohan Mahapatra, Pradeep Kumar, Nitin Saini
A new technique to measure the diffusible hydrogen content in steel weldments is described. The sensor, developed at the Indira Gandhi Center for Atomic Research, is a conducting polymer film coated with Pd on either side. One side of the sensor was exposed to an argon-hydrogen gas mixture and the other side to air. The current flowing through the sensor was directly proportional to the some studies on p91 steel and their weldmentsWeldability of P91 steels | Welding | Creep (Deformation)steel pipes. 5 Some studies on P91 2017 Manas Mohan The combined effects of steel and their Mohapatra lath martensitic weldments microstructure, residual stress and diffusible hydrogen content on performance of P91 steel material are also discussed.Type IV Cracking of Weldments in Enhanced Ferritic Steels some studies on p91 steel and their weldmentsFor example, in their in-depth study of data from parent and cross-weld specimens of the 912%Cr family, Kimura et al. indicated that employing a higher strength parent steel will bring no further advantage in terms of cross-weld creep performance at the higher temperature ranges desired for operation.33 They demonstrated that for grade 92 some studies on p91 steel and their weldments
Thermo-mechanical study of single and multi-pass welding some studies on p91 steel and their weldments
Jan 01, 2020 · Number of studies are found on CSEF steels (P91, P92, T91, etc.) for various arc welding processes like TIG, MIG, GTAW etc. which focus areas were mechanical and structural studies , , , , . Some literatures are also found on thermo-mechanical behavior of P91 steel considering solid-state phase or austenite-martensite transformation (SSPT) phenomenon in modelling  ,  ,  .Studies on microstructure and mechanical properties of some studies on p91 steel and their weldmentsIn the present work is studied the influence of titanium dioxide on the microstructure and mechanical properties of submerged arc weld P91 steel weldment. To manipulate the chemical composition of the weldment, the titanium dioxide (TiO 2) powder was added with fresh welding flux in various proportions (2.512.5%). The results of optical emission spectroscopy test showed that Ti wt% is systematically Some studies on P91 steel and their weldments- A Review some studies on p91 steel and their weldmentsIn present research article, microstructure evolution in P91 steel and their weldments are reviewed in asvirgin and heat treatment and creep exposure condition. The thermal stability of P91 steel some studies on p91 steel and their weldments
Apr 30, 2018 · The residual stress and microstructure of P91 steel weldment can be optimized by using the proper PWHT as suggested by the researchers [29,99] but the hydrogen induced cracking (HIC) in P91 steel weld is a serious problem. The researchers have recommended the use of low hydrogen electrode, preheating and post weld heating to avoid the HIC in P91 weldments.Cited by: 74Publish Year: 2018Author: Chandan Pandey, Manas Mohan Mahapatra, Pradeep Kumar, Nitin SainiSome studies on P91 steel and their weldments - ScienceDirectAbstract. 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 Cited by: 74Publish Year: 2018Author: Chandan Pandey, Manas Mohan Mahapatra, Pradeep Kumar, Nitin SainiSoftening mechanism of P91 steel weldments using heat some studies on p91 steel and their weldmentsMar 01, 2019 · The tungsten inert gas welded P91 steel welded joints were subjected to the two different type of heat treatments including the postweld direct tempering (PWDT) and re-austenitizing based tempering (PWNT) treatment. The microstructure of weld fusion and heat affected zone (HAZ) were characterized in different heat treatment conditions using optical microscope and scanning Cited by: 14Publish Year: 2019Author: Chandan Pandey, Manas Mohan Mahapatra, Pradeep Kumar, F. Daniel, B. Adhithan
P91 steel welds require a minimum of 47 J during the hydrotesting of vessels as per the EN1557: 1997 specification. Toughness of P91 steel welds was found to be low in the as-weld condition.Microstructural investigation of the heat-affected zone of some studies on p91 steel and their weldmentsMaterials for their manufacturing are designed to resist high stress at elevated temperature, and to meet requirements regarding creep resistance.The objective of this study is to investigate microstructure of different regions of the heat affected zone in T/P91 steels by using thermal simulation instead of welding.Manas Mohan Mahapatra - Google ScholarSome studies on P91 steel and their weldments. C Pandey, MM Mahapatra, P Kumar, N Saini. Journal of Alloys and Compounds 743, 332-364, 2018. 75: 2018: Influence of reinforcement type on microstructure, hardness, and tensile properties of an aluminum alloy metal matrix composite.
Investigation on Metallurgical Effects of Delayed Heat some studies on p91 steel and their weldments
Some studies on P91 steel and their weldments, Journal of Alloys and Compounds, January 2018.  Dheerendra Kumar Dwivedi and Ravi Shanker Vidyarthy Microstructural and mechanical properties assessment of the P91A-TIG weld joints, Journal of Manufacturing Processes, December 2017.Hydrogen diffusion in creep-resistant 9% Cr P91 multi some studies on p91 steel and their weldmentsDec 06, 2019 · Abstract Welded components of P91 9% Cr steel demand for careful welding fabrication with necessary post weld heat treatment (PWHT). Before the PWHT, a hydrogen removal heat treatment is necessary for avoidance of hydrogen assisted cracking (HAC).How many times can be weld a P91Apr 07, 2003 · It is commonly associated with high alloy ferritic/martensitic steels like P91 but there have been studies of C-Mn and low alloy steels as well. Since PWHT is carried put below the transformation temperature, there is little change in the coarse and fine grain structures of these weldments.
Experimental investigations on P22/P91 dissimilar shielded some studies on p91 steel and their weldments
Sultan, AR, Ravibharath, R, Narayanaswamy, R. Study of dissimilar header welding between 2.25Cr-1Mo steel and 9Cr-1Mo steel with 9018 B9 electrode under various conditions of post weld heat treatment. Trans Indian Inst Metals 2017; 70: 2079 2092. Google Scholar | CrossrefEvolution of phases during tempering of P91 steel at 760 some studies on p91 steel and their weldmentsIn the present investigation, a systematic study has been undertaken with regard to the effects of tempering time on room temperature mechanical properties of P91 (X10CrMoVNNB9-1) steel. Samples cut from P91 (X10CrMoVNNB9-1) industrial pipe were normalized at 1040 for 40 min and then tempered at 760 for different tempering times starting from 2 h to 8 h.Effect of shielding gas composition and activating flux on some studies on p91 steel and their weldmentsJun 12, 2019 · Abstract. In the current work, efforts have been made to study the effects of the activating flux and the shielding gas composition on the Tungsten Inert Gas (TIG) welding of SA 387 Gr 91 CL.2 steel (P91 steel). Multicomponent flux comprising of TiO 2, SiO 2, NiO, CuO, and CeO 2
Effect of post-weld heat treatment on microstructure and some studies on p91 steel and their weldments
Jun 18, 2020 · The present study centres on the effect of post-weld heat treatment (PWHT) on microstructure and mechanical properties of the deep penetration keyhole Tungsten Inert Gas (K-TIG) welded dissimilar joint between creep strength enhanced ferritic (CSEF) steel and austenitic stainless steel (ASS). The as-received normalized and tempered CSEF steel was joined with ASS in a single Dissolution of -ferrite and its effect on mechanical some studies on p91 steel and their weldmentsOct 07, 2020 · The CSEF steel weldments necessitate further heat-treatment due to the presence of complex microstructure consisting of soft-brittle (-ferrite and martensitic) regions after a conventional PWHT. some studies on p91 steel and their weldments N. SainiSome studies on P91 steel and their weldments. J. Alloys Compd., 743 (2018), pp. 332-364, 10.1016/j.jallcom.2018.01.120. Article Download some studies on p91 steel and their weldmentsDETERMINATION OF CREEP PROPERTIES FOR P91 Fig. 2 HAZ impression creep specimens and their position in the P91 pipe weldment, loaded from parent material direction. (b) dimensions (mm) 10 1.0 2.5 (a) position of the specimens Indentor and Parent Weld Metal HAZ width: ~ 3mm Fig. 3 Cross-weld notched and waisted creep test specimens. PM WM HAZ PM WM HAZ PM PM (a) position of notched barSome results are removed in response to a notice of local law requirement. For more information, please see here.
Apart from one study using Single Edge Notch Tension (SENT) specimen, no published data was found for P91 CCG using any other type of specimen. Other type of specimen should be explored to investigate the effect of constraint on parent, weld and HAZ P91 steel. Long-term CCG data are not available for P91 steel.CREEP CRACK GROWTH BEHAVIOR OF P91 STEEL Standard creep test specimens were machined from the welded joint and from simulated HAZ materials of P91 steel. Crack growth test specimens were machined from the base metal and weldments with the notches introduced centrally, using electrical discharge method (EDM) in WM and HAZ, as shown in.A comparative study of transverse shrinkage stresses and some studies on p91 steel and their weldmentsMar 15, 2018 · The paper deals with the measurement of the residual stresses in P91 welded pipe using the blind hole drilling technique. The P91 pipe weld joints were prepared using gas tungsten arc welding process. The residual stress measurement was carried out using the strain gauge rosette that was associated with the plastic deformation of material and stress concentration effect of multi-point
(PDF) Numerical Study of Welding Distortion in SAW Welded some studies on p91 steel and their weldments
The martensitic-austenitic transformation phenomenon in P91 steel was also imple- mented with specic changes in the properties of the weld and base material. It is observed that SAW process with some studies on p91 steel and their weldments(PDF) Microstructure Evolution and Mechanical Behaviour of some studies on p91 steel and their weldmentsIn the present investigation, the P91 pipe weldments have been characterized for microstructural responses in as-welded, post-weld heat treatment (PWHT) and ageing conditions. The PWHT of welded some studies on p91 steel and their weldments(PDF) Measurement of residual stresses in submerged arc some studies on p91 steel and their weldmentsIn this study, a single pass double sided submerged arc welded P91 steel square butt weld joint is considered to determine welding induced residual stress. Strain associated to trapped stresses in some studies on p91 steel and their weldments
(PDF) Comparative Characterization of P91 and 10CrMo9-10 some studies on p91 steel and their weldments
Sample Descriptions The welded samples consisted of one P91-to-P91 weldment, and four 10CrMo9-10-to-10CrMo9-10 weldments. The P91 weldment had dimensions of 74.15 × 64.5 × 20.1 mm. The first welding procedure used on the P91 steel consisted of a TIG welding process to develop the joining root; the remainder of the V-groove joint was developed some studies on p91 steel and their weldments