Creep-induced heterogeneous precipitation of Laves phase with two morphologies in tempered martensite ferritic steels

Bo Xiao; Haokai Dong; Tao Yang; Shaofei Liu; Shenbao Jin; Boxuan Cao; Yongdian Han; Lei Zhao; Xiawei Yang; Gang Sha; Lianyong Xu

doi:10.1080/21663831.2023.2208613

Creep-induced heterogeneous precipitation of Laves phase with two morphologies in tempered martensite ferritic steels

Bo Xiao
, Haokai Dong
, Tao Yang
, Shaofei Liu
, Shenbao Jin
, Boxuan Cao
, Yongdian Han
, Lei Zhao
, Xiawei Yang
, Gang Sha
, Lianyong Xu

School of Materials Sience and Engineering

Tianjin University
Tianjin Key Laboratory of Advanced Joining Technology
South China University of Technology
City University of Hong Kong
Nanjing University of Science and Technology

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

8 Scopus citations

Abstract

We report two typical morphologies (elongated- and blocky-shaped) of the Laves phase in tempered martensite ferritic steels during creep process, originating from the two independent formation paths, i.e. along grain boundaries (GBs) and neighboring M₂₃C₆. This is attributed to the multi-element segregation (Cr, Mn, Si and W) at GBs and adjacent M₂₃C₆ that serves as suppliers of Laves phase formers. Furthermore, the subsequent different growth mechanisms play crucial roles in the two typical morphologies. Our findings improve the understanding of Laves phase heterogeneous precipitation and provide new insights for the innovation of novel heat-resistant steels with superior creep strength.

Original language	English
Pages (from-to)	630-637
Number of pages	8
Journal	Materials Research Letters
Volume	11
Issue number	8
DOIs	https://doi.org/10.1080/21663831.2023.2208613
State	Published - 2023

Keywords

Laves phase
Tempered martensite ferritic steels
creep deformation
heterogeneous precipitation
precipitation mechanism

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10.1080/21663831.2023.2208613

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title = "Creep-induced heterogeneous precipitation of Laves phase with two morphologies in tempered martensite ferritic steels",

abstract = "We report two typical morphologies (elongated- and blocky-shaped) of the Laves phase in tempered martensite ferritic steels during creep process, originating from the two independent formation paths, i.e. along grain boundaries (GBs) and neighboring M23C6. This is attributed to the multi-element segregation (Cr, Mn, Si and W) at GBs and adjacent M23C6 that serves as suppliers of Laves phase formers. Furthermore, the subsequent different growth mechanisms play crucial roles in the two typical morphologies. Our findings improve the understanding of Laves phase heterogeneous precipitation and provide new insights for the innovation of novel heat-resistant steels with superior creep strength.",

keywords = "Laves phase, Tempered martensite ferritic steels, creep deformation, heterogeneous precipitation, precipitation mechanism",

author = "Bo Xiao and Haokai Dong and Tao Yang and Shaofei Liu and Shenbao Jin and Boxuan Cao and Yongdian Han and Lei Zhao and Xiawei Yang and Gang Sha and Lianyong Xu",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s). Published by Informa UK Limited, trading as Taylor \& Francis Group.",

year = "2023",

doi = "10.1080/21663831.2023.2208613",

language = "英语",

volume = "11",

pages = "630--637",

journal = "Materials Research Letters",

issn = "2166-3831",

publisher = "Taylor and Francis Ltd.",

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}

TY - JOUR

T1 - Creep-induced heterogeneous precipitation of Laves phase with two morphologies in tempered martensite ferritic steels

AU - Xiao, Bo

AU - Dong, Haokai

AU - Yang, Tao

AU - Liu, Shaofei

AU - Jin, Shenbao

AU - Cao, Boxuan

AU - Han, Yongdian

AU - Zhao, Lei

AU - Yang, Xiawei

AU - Sha, Gang

AU - Xu, Lianyong

PY - 2023

Y1 - 2023

N2 - We report two typical morphologies (elongated- and blocky-shaped) of the Laves phase in tempered martensite ferritic steels during creep process, originating from the two independent formation paths, i.e. along grain boundaries (GBs) and neighboring M23C6. This is attributed to the multi-element segregation (Cr, Mn, Si and W) at GBs and adjacent M23C6 that serves as suppliers of Laves phase formers. Furthermore, the subsequent different growth mechanisms play crucial roles in the two typical morphologies. Our findings improve the understanding of Laves phase heterogeneous precipitation and provide new insights for the innovation of novel heat-resistant steels with superior creep strength.

AB - We report two typical morphologies (elongated- and blocky-shaped) of the Laves phase in tempered martensite ferritic steels during creep process, originating from the two independent formation paths, i.e. along grain boundaries (GBs) and neighboring M23C6. This is attributed to the multi-element segregation (Cr, Mn, Si and W) at GBs and adjacent M23C6 that serves as suppliers of Laves phase formers. Furthermore, the subsequent different growth mechanisms play crucial roles in the two typical morphologies. Our findings improve the understanding of Laves phase heterogeneous precipitation and provide new insights for the innovation of novel heat-resistant steels with superior creep strength.

KW - Laves phase

KW - Tempered martensite ferritic steels

KW - creep deformation

KW - heterogeneous precipitation

KW - precipitation mechanism

UR - https://www.scopus.com/pages/publications/85158994865

U2 - 10.1080/21663831.2023.2208613

DO - 10.1080/21663831.2023.2208613

M3 - 文章

AN - SCOPUS:85158994865

SN - 2166-3831

VL - 11

SP - 630

EP - 637

JO - Materials Research Letters

JF - Materials Research Letters

IS - 8

ER -

Creep-induced heterogeneous precipitation of Laves phase with two morphologies in tempered martensite ferritic steels

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Keywords

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