Strength increase in the coarse-grained heat-affected zone of a high-strength, blast-resistant steel after post-weld heat treatment

Xin Yue; Xiuli Feng; John C. Lippold

doi:10.1016/j.msea.2013.07.064

Strength increase in the coarse-grained heat-affected zone of a high-strength, blast-resistant steel after post-weld heat treatment

Xin Yue
, Xiuli Feng
, John C. Lippold^*

^*Corresponding author for this work

Ohio State University

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

8 Scopus citations

Abstract

The microstructure and precipitation behaviors in the coarse-grained heat-affected zone (CGHAZ) of a blast-resistant steel during post-weld heat treatment (PWHT) were investigated. It was found that using PWHT at 650. °C for 1. h is beneficial for the strength recovery in the softened CGHAZ in the as-welded condition. This is attributed to the re-precipitation of strengthening phases during the PWHT process that are dissolved in the CGHAZ during heating to the high temperature and do not re-precipitate completely during cooling. The strength change in the CGHAZ is therefore related with the change in microstructure after PWHT and rationalized by the model used in the present study.

Original language	English
Pages (from-to)	149-154
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	585
DOIs	https://doi.org/10.1016/j.msea.2013.07.064
State	Published - 15 Nov 2013
Externally published	Yes

Keywords

Blast-resistant steel
Heat-affected zone
Microstructure
Precipitation
Strength recovery

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10.1016/j.msea.2013.07.064

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title = "Strength increase in the coarse-grained heat-affected zone of a high-strength, blast-resistant steel after post-weld heat treatment",

abstract = "The microstructure and precipitation behaviors in the coarse-grained heat-affected zone (CGHAZ) of a blast-resistant steel during post-weld heat treatment (PWHT) were investigated. It was found that using PWHT at 650. °C for 1. h is beneficial for the strength recovery in the softened CGHAZ in the as-welded condition. This is attributed to the re-precipitation of strengthening phases during the PWHT process that are dissolved in the CGHAZ during heating to the high temperature and do not re-precipitate completely during cooling. The strength change in the CGHAZ is therefore related with the change in microstructure after PWHT and rationalized by the model used in the present study.",

keywords = "Blast-resistant steel, Heat-affected zone, Microstructure, Precipitation, Strength recovery",

author = "Xin Yue and Xiuli Feng and Lippold, \{John C.\}",

year = "2013",

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doi = "10.1016/j.msea.2013.07.064",

language = "英语",

volume = "585",

pages = "149--154",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

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TY - JOUR

T1 - Strength increase in the coarse-grained heat-affected zone of a high-strength, blast-resistant steel after post-weld heat treatment

AU - Yue, Xin

AU - Feng, Xiuli

AU - Lippold, John C.

PY - 2013/11/15

Y1 - 2013/11/15

N2 - The microstructure and precipitation behaviors in the coarse-grained heat-affected zone (CGHAZ) of a blast-resistant steel during post-weld heat treatment (PWHT) were investigated. It was found that using PWHT at 650. °C for 1. h is beneficial for the strength recovery in the softened CGHAZ in the as-welded condition. This is attributed to the re-precipitation of strengthening phases during the PWHT process that are dissolved in the CGHAZ during heating to the high temperature and do not re-precipitate completely during cooling. The strength change in the CGHAZ is therefore related with the change in microstructure after PWHT and rationalized by the model used in the present study.

AB - The microstructure and precipitation behaviors in the coarse-grained heat-affected zone (CGHAZ) of a blast-resistant steel during post-weld heat treatment (PWHT) were investigated. It was found that using PWHT at 650. °C for 1. h is beneficial for the strength recovery in the softened CGHAZ in the as-welded condition. This is attributed to the re-precipitation of strengthening phases during the PWHT process that are dissolved in the CGHAZ during heating to the high temperature and do not re-precipitate completely during cooling. The strength change in the CGHAZ is therefore related with the change in microstructure after PWHT and rationalized by the model used in the present study.

KW - Blast-resistant steel

KW - Heat-affected zone

KW - Microstructure

KW - Precipitation

KW - Strength recovery

UR - https://www.scopus.com/pages/publications/84881534096

U2 - 10.1016/j.msea.2013.07.064

DO - 10.1016/j.msea.2013.07.064

M3 - 文章

AN - SCOPUS:84881534096

SN - 0921-5093

VL - 585

SP - 149

EP - 154

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Strength increase in the coarse-grained heat-affected zone of a high-strength, blast-resistant steel after post-weld heat treatment

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Keywords

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