Hydrogen embrittlement behaviors of additive manufactured maraging steel investigated by in situ high-energy X-ray diffraction

Shilei Li; Mingming Liu; Yang Ren; Yandong Wang

doi:10.1016/j.msea.2019.138341

Hydrogen embrittlement behaviors of additive manufactured maraging steel investigated by in situ high-energy X-ray diffraction

Shilei Li
, Mingming Liu
, Yang Ren
, Yandong Wang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

26 Citations (Scopus)

Abstract

The microstructures and mechanical properties of additively manufactured (AM) maraging steel were investigated before and after hydrogen charging. The hydrogen-charged specimen suffers severe hydrogen embrittlement and its strength and plasticity decline obviously. The mechanism of ductile-to-brittle transition of AM maraging steel after hydrogen charging was studied by in situ high energy X-ray diffraction and electron backscatter diffraction techniques. Martensitic transformation occurs in the hydrogen-charged specimen under low stress. The premature phase transformation along with hydrogen-induced microcracks resulting in the brittle fracture of the hydrogen-charged specimen.

Original language	English
Article number	138341
Journal	Materials Science and Engineering A
Volume	766
Online published	28 Aug 2019
DOIs	https://doi.org/10.1016/j.msea.2019.138341
Publication status	Published - 24 Oct 2019
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Research Keywords

Additive manufacturing
High-energy X-ray diffraction
Hydrogen embrittlement
Martensitic transformation

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10.1016/j.msea.2019.138341

https://www.sciencedirect.com/science/article/am/pii/S092150931931127X

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title = "Hydrogen embrittlement behaviors of additive manufactured maraging steel investigated by in situ high-energy X-ray diffraction",

abstract = "The microstructures and mechanical properties of additively manufactured (AM) maraging steel were investigated before and after hydrogen charging. The hydrogen-charged specimen suffers severe hydrogen embrittlement and its strength and plasticity decline obviously. The mechanism of ductile-to-brittle transition of AM maraging steel after hydrogen charging was studied by in situ high energy X-ray diffraction and electron backscatter diffraction techniques. Martensitic transformation occurs in the hydrogen-charged specimen under low stress. The premature phase transformation along with hydrogen-induced microcracks resulting in the brittle fracture of the hydrogen-charged specimen.",

keywords = "Additive manufacturing, High-energy X-ray diffraction, Hydrogen embrittlement, Martensitic transformation",

author = "Shilei Li and Mingming Liu and Yang Ren and Yandong Wang",

year = "2019",

month = oct,

day = "24",

doi = "10.1016/j.msea.2019.138341",

language = "English",

volume = "766",

journal = "Materials Science and Engineering A",

issn = "0921-5093",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Hydrogen embrittlement behaviors of additive manufactured maraging steel investigated by in situ high-energy X-ray diffraction

AU - Li, Shilei

AU - Liu, Mingming

AU - Ren, Yang

AU - Wang, Yandong

PY - 2019/10/24

Y1 - 2019/10/24

N2 - The microstructures and mechanical properties of additively manufactured (AM) maraging steel were investigated before and after hydrogen charging. The hydrogen-charged specimen suffers severe hydrogen embrittlement and its strength and plasticity decline obviously. The mechanism of ductile-to-brittle transition of AM maraging steel after hydrogen charging was studied by in situ high energy X-ray diffraction and electron backscatter diffraction techniques. Martensitic transformation occurs in the hydrogen-charged specimen under low stress. The premature phase transformation along with hydrogen-induced microcracks resulting in the brittle fracture of the hydrogen-charged specimen.

AB - The microstructures and mechanical properties of additively manufactured (AM) maraging steel were investigated before and after hydrogen charging. The hydrogen-charged specimen suffers severe hydrogen embrittlement and its strength and plasticity decline obviously. The mechanism of ductile-to-brittle transition of AM maraging steel after hydrogen charging was studied by in situ high energy X-ray diffraction and electron backscatter diffraction techniques. Martensitic transformation occurs in the hydrogen-charged specimen under low stress. The premature phase transformation along with hydrogen-induced microcracks resulting in the brittle fracture of the hydrogen-charged specimen.

KW - Additive manufacturing

KW - High-energy X-ray diffraction

KW - Hydrogen embrittlement

KW - Martensitic transformation

UR - https://www.scopus.com/pages/publications/85071591059

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85071591059&origin=recordpage

U2 - 10.1016/j.msea.2019.138341

DO - 10.1016/j.msea.2019.138341

M3 - RGC 21 - Publication in refereed journal

SN - 0921-5093

VL - 766

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

M1 - 138341

ER -

Hydrogen embrittlement behaviors of additive manufactured maraging steel investigated by in situ high-energy X-ray diffraction

Abstract

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