Morphology and crystallography of lath martensite in weld metal of high strength steel by double sided laser welding

Jiecai Feng; Liqun Li; Yanbin Chen

doi:10.1016/j.matlet.2019.127129

Morphology and crystallography of lath martensite in weld metal of high strength steel by double sided laser welding

Jiecai Feng^*
, Liqun Li
, Yanbin Chen

^*Corresponding author for this work

School of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The morphology and crystallography of the lath martensite in the weld metal of high strength steel by double-sided hybrid fiber laser-arc welding were investigated. The lath martensite was found to have Kurdjumov-Sachs orientation relationship. The amount of the lath martensite in the block was affected by the cooling direction of the weld pool. All the four packets were distributed randomly within a columnar grain. The blocks were approximately in square shape. All the 24 variants appeared within the columnar grain and some regions included certain combinations of two particular variants. The lath martensite in the weld metal had preferred orientation which was lath martensite (1 1 1) ‖ substrate surface.

Original language	English
Article number	127129
Journal	Materials Letters
Volume	261
DOIs	https://doi.org/10.1016/j.matlet.2019.127129
State	Published - 15 Feb 2020

Keywords

Laser processing
Metals and alloys
Microstructure
Welding

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10.1016/j.matlet.2019.127129

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title = "Morphology and crystallography of lath martensite in weld metal of high strength steel by double sided laser welding",

abstract = "The morphology and crystallography of the lath martensite in the weld metal of high strength steel by double-sided hybrid fiber laser-arc welding were investigated. The lath martensite was found to have Kurdjumov-Sachs orientation relationship. The amount of the lath martensite in the block was affected by the cooling direction of the weld pool. All the four packets were distributed randomly within a columnar grain. The blocks were approximately in square shape. All the 24 variants appeared within the columnar grain and some regions included certain combinations of two particular variants. The lath martensite in the weld metal had preferred orientation which was lath martensite (1 1 1) ‖ substrate surface.",

keywords = "Laser processing, Metals and alloys, Microstructure, Welding",

author = "Jiecai Feng and Liqun Li and Yanbin Chen",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2020",

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day = "15",

doi = "10.1016/j.matlet.2019.127129",

language = "英语",

volume = "261",

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T1 - Morphology and crystallography of lath martensite in weld metal of high strength steel by double sided laser welding

AU - Feng, Jiecai

AU - Li, Liqun

AU - Chen, Yanbin

PY - 2020/2/15

Y1 - 2020/2/15

N2 - The morphology and crystallography of the lath martensite in the weld metal of high strength steel by double-sided hybrid fiber laser-arc welding were investigated. The lath martensite was found to have Kurdjumov-Sachs orientation relationship. The amount of the lath martensite in the block was affected by the cooling direction of the weld pool. All the four packets were distributed randomly within a columnar grain. The blocks were approximately in square shape. All the 24 variants appeared within the columnar grain and some regions included certain combinations of two particular variants. The lath martensite in the weld metal had preferred orientation which was lath martensite (1 1 1) ‖ substrate surface.

AB - The morphology and crystallography of the lath martensite in the weld metal of high strength steel by double-sided hybrid fiber laser-arc welding were investigated. The lath martensite was found to have Kurdjumov-Sachs orientation relationship. The amount of the lath martensite in the block was affected by the cooling direction of the weld pool. All the four packets were distributed randomly within a columnar grain. The blocks were approximately in square shape. All the 24 variants appeared within the columnar grain and some regions included certain combinations of two particular variants. The lath martensite in the weld metal had preferred orientation which was lath martensite (1 1 1) ‖ substrate surface.

KW - Laser processing

KW - Metals and alloys

KW - Microstructure

KW - Welding

UR - https://www.scopus.com/pages/publications/85076177470

U2 - 10.1016/j.matlet.2019.127129

DO - 10.1016/j.matlet.2019.127129

M3 - 文章

AN - SCOPUS:85076177470

SN - 0167-577X

VL - 261

JO - Materials Letters

JF - Materials Letters

M1 - 127129

ER -

Morphology and crystallography of lath martensite in weld metal of high strength steel by double sided laser welding

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