Mechanical properties of 9Cr-1W reduced activation ferritic martensitic steel weldment prepared by electron beam welding process

C. R.  Das; S. K. Albert; Shiju Sam; P. Mastanaiah; G. M. S. K. Chaitanya; A. K. Bhaduri; T. Jayakumar; C. V. S. Murthy; E. Rajendra Kumar

doi:10.1016/j.fusengdes.2014.07.001

Mechanical properties of 9Cr-1W reduced activation ferritic martensitic steel weldment prepared by electron beam welding process

C. R. Das, S. K. Albert, Shiju Sam, P. Mastanaiah, G. M. S. K. Chaitanya, A. K. Bhaduri, T. Jayakumar, C. V. S. Murthy, E. Rajendra Kumar

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Microstructure and mechanical properties of the weldments prepared from 9Cr-1W reduced activation ferritic martensitic (RAFM) steel using electron beam welding (EBW) process were studied. Microstructure consists of tempered lath martensite where precipitates decorating the boundaries in post weld heat treated (PWHT) condition. Lath and precipitate sizes were found to be finer in the weld metal than in base metal. Accordingly, hardness of the weld metal was found to be higher than the base metal. Tensile strength of the cross weldment specimen was 684 MPa, which was comparable with the base metal tensile strength of 670 MPa. On the other hand, DBTT of 9Cr-1W weld metal in as-welded condition is similar to that reported for TIG weld metal in PWHT condition. (C) 2014 Elsevier B.V. All rights reserved.

Original language	English
Journal	Fusion Engineering and Design
Volume	89
Issue number	11
Pages (from-to)	2672-2678
ISSN	0920-3796
DOIs	https://doi.org/10.1016/j.fusengdes.2014.07.001
Publication status	Published - 2014
Externally published	Yes

Keywords

Electron beam welding
9Cr-1W RAFM steel
Martensite
Toughness and DBTT

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Das, C. R., Albert, S. K., Sam, S., Mastanaiah, P., Chaitanya, G. M. S. K., Bhaduri, A. K., Jayakumar, T., Murthy, C. V. S., & Kumar, E. R. (2014). Mechanical properties of 9Cr-1W reduced activation ferritic martensitic steel weldment prepared by electron beam welding process. Fusion Engineering and Design, 89(11), 2672-2678. https://doi.org/10.1016/j.fusengdes.2014.07.001

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title = "Mechanical properties of 9Cr-1W reduced activation ferritic martensitic steel weldment prepared by electron beam welding process",

abstract = "Microstructure and mechanical properties of the weldments prepared from 9Cr-1W reduced activation ferritic martensitic (RAFM) steel using electron beam welding (EBW) process were studied. Microstructure consists of tempered lath martensite where precipitates decorating the boundaries in post weld heat treated (PWHT) condition. Lath and precipitate sizes were found to be finer in the weld metal than in base metal. Accordingly, hardness of the weld metal was found to be higher than the base metal. Tensile strength of the cross weldment specimen was 684 MPa, which was comparable with the base metal tensile strength of 670 MPa. On the other hand, DBTT of 9Cr-1W weld metal in as-welded condition is similar to that reported for TIG weld metal in PWHT condition. (C) 2014 Elsevier B.V. All rights reserved.",

keywords = "Electron beam welding, 9Cr-1W RAFM steel, Martensite, Toughness and DBTT",

author = "Das, {C. R.} and Albert, {S. K.} and Shiju Sam and P. Mastanaiah and Chaitanya, {G. M. S. K.} and Bhaduri, {A. K.} and T. Jayakumar and Murthy, {C. V. S.} and Kumar, {E. Rajendra}",

year = "2014",

doi = "10.1016/j.fusengdes.2014.07.001",

language = "English",

volume = "89",

pages = "2672--2678",

journal = "Fusion Engineering and Design",

issn = "0920-3796",

publisher = "Elsevier",

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TY - JOUR

T1 - Mechanical properties of 9Cr-1W reduced activation ferritic martensitic steel weldment prepared by electron beam welding process

AU - Das, C. R.

AU - Albert, S. K.

AU - Sam, Shiju

AU - Mastanaiah, P.

AU - Chaitanya, G. M. S. K.

AU - Bhaduri, A. K.

AU - Jayakumar, T.

AU - Murthy, C. V. S.

AU - Kumar, E. Rajendra

PY - 2014

Y1 - 2014

N2 - Microstructure and mechanical properties of the weldments prepared from 9Cr-1W reduced activation ferritic martensitic (RAFM) steel using electron beam welding (EBW) process were studied. Microstructure consists of tempered lath martensite where precipitates decorating the boundaries in post weld heat treated (PWHT) condition. Lath and precipitate sizes were found to be finer in the weld metal than in base metal. Accordingly, hardness of the weld metal was found to be higher than the base metal. Tensile strength of the cross weldment specimen was 684 MPa, which was comparable with the base metal tensile strength of 670 MPa. On the other hand, DBTT of 9Cr-1W weld metal in as-welded condition is similar to that reported for TIG weld metal in PWHT condition. (C) 2014 Elsevier B.V. All rights reserved.

AB - Microstructure and mechanical properties of the weldments prepared from 9Cr-1W reduced activation ferritic martensitic (RAFM) steel using electron beam welding (EBW) process were studied. Microstructure consists of tempered lath martensite where precipitates decorating the boundaries in post weld heat treated (PWHT) condition. Lath and precipitate sizes were found to be finer in the weld metal than in base metal. Accordingly, hardness of the weld metal was found to be higher than the base metal. Tensile strength of the cross weldment specimen was 684 MPa, which was comparable with the base metal tensile strength of 670 MPa. On the other hand, DBTT of 9Cr-1W weld metal in as-welded condition is similar to that reported for TIG weld metal in PWHT condition. (C) 2014 Elsevier B.V. All rights reserved.

KW - Electron beam welding

KW - 9Cr-1W RAFM steel

KW - Martensite

KW - Toughness and DBTT

U2 - 10.1016/j.fusengdes.2014.07.001

DO - 10.1016/j.fusengdes.2014.07.001

M3 - Journal article

SN - 0920-3796

VL - 89

SP - 2672

EP - 2678

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

IS - 11

ER -

Mechanical properties of 9Cr-1W reduced activation ferritic martensitic steel weldment prepared by electron beam welding process

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Keywords

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