Microstructures and mechanical properties of melt hydrogenated Nb-Si based alloy

Fuxin Wang; Liangshun Luo; Xianyu Meng; Yanjin Xu; Liang Wang; Lili Song; Yanqing Su; Jingjie Guo; Hengzhi Fu

doi:10.1016/j.ijhydene.2017.08.163

Microstructures and mechanical properties of melt hydrogenated Nb-Si based alloy

Fuxin Wang
, Liangshun Luo
, Xianyu Meng
, Yanjin Xu
, Liang Wang
, Lili Song
, Yanqing Su^*
, Jingjie Guo
, Hengzhi Fu

^*Corresponding author for this work

Harbin Institute of Technology
China Aviation Industry Corporation
Ningde Vocational and Technical College

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

6 Scopus citations

Abstract

Nb-20Si-6Mo (at.%) alloy was prepared by arc melting under Ar-H₂ gas mixture atmosphere (Melt Hydrogenation Technology). It indicated that the microstructures of Nb-20Si-6Mo alloy change significantly after the melt hydrogenated treatment. The morphologies of primary Nb₅Si₃ phase change from polygon to dendrite shapes with the increase of H content. The room temperature compression at same strain rate indicates that the σ_max decreases with the increase of hydrogen content. High temperature (1400 °C) compression at same strain rate indicates that H addition can cause the peak strain to take place in advance at high deforming temperature. The high temperature compression stress tends to firstly increase and then decrease due to the effect of H addition. The reason for the effects of hydrogenation on the high temperature compression stress of Nb-20Si-6Mo alloy has been discussed.

Original language	English
Pages (from-to)	26417-26422
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	42
Issue number	42
DOIs	https://doi.org/10.1016/j.ijhydene.2017.08.163
State	Published - 19 Oct 2017
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Hot deformation
Melt hydrogenation
Microstructure
Nb-Si based alloys

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10.1016/j.ijhydene.2017.08.163

Cite this

@article{812d383d4944462aa4b7e45073b6aefc,

title = "Microstructures and mechanical properties of melt hydrogenated Nb-Si based alloy",

abstract = "Nb-20Si-6Mo (at.\%) alloy was prepared by arc melting under Ar-H2 gas mixture atmosphere (Melt Hydrogenation Technology). It indicated that the microstructures of Nb-20Si-6Mo alloy change significantly after the melt hydrogenated treatment. The morphologies of primary Nb5Si3 phase change from polygon to dendrite shapes with the increase of H content. The room temperature compression at same strain rate indicates that the σmax decreases with the increase of hydrogen content. High temperature (1400 °C) compression at same strain rate indicates that H addition can cause the peak strain to take place in advance at high deforming temperature. The high temperature compression stress tends to firstly increase and then decrease due to the effect of H addition. The reason for the effects of hydrogenation on the high temperature compression stress of Nb-20Si-6Mo alloy has been discussed.",

keywords = "Hot deformation, Melt hydrogenation, Microstructure, Nb-Si based alloys",

author = "Fuxin Wang and Liangshun Luo and Xianyu Meng and Yanjin Xu and Liang Wang and Lili Song and Yanqing Su and Jingjie Guo and Hengzhi Fu",

note = "Publisher Copyright: {\textcopyright} 2017 Hydrogen Energy Publications LLC",

year = "2017",

month = oct,

day = "19",

doi = "10.1016/j.ijhydene.2017.08.163",

language = "英语",

volume = "42",

pages = "26417--26422",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Ltd",

number = "42",

}

TY - JOUR

T1 - Microstructures and mechanical properties of melt hydrogenated Nb-Si based alloy

AU - Wang, Fuxin

AU - Luo, Liangshun

AU - Meng, Xianyu

AU - Xu, Yanjin

AU - Wang, Liang

AU - Song, Lili

AU - Su, Yanqing

AU - Guo, Jingjie

AU - Fu, Hengzhi

PY - 2017/10/19

Y1 - 2017/10/19

N2 - Nb-20Si-6Mo (at.%) alloy was prepared by arc melting under Ar-H2 gas mixture atmosphere (Melt Hydrogenation Technology). It indicated that the microstructures of Nb-20Si-6Mo alloy change significantly after the melt hydrogenated treatment. The morphologies of primary Nb5Si3 phase change from polygon to dendrite shapes with the increase of H content. The room temperature compression at same strain rate indicates that the σmax decreases with the increase of hydrogen content. High temperature (1400 °C) compression at same strain rate indicates that H addition can cause the peak strain to take place in advance at high deforming temperature. The high temperature compression stress tends to firstly increase and then decrease due to the effect of H addition. The reason for the effects of hydrogenation on the high temperature compression stress of Nb-20Si-6Mo alloy has been discussed.

AB - Nb-20Si-6Mo (at.%) alloy was prepared by arc melting under Ar-H2 gas mixture atmosphere (Melt Hydrogenation Technology). It indicated that the microstructures of Nb-20Si-6Mo alloy change significantly after the melt hydrogenated treatment. The morphologies of primary Nb5Si3 phase change from polygon to dendrite shapes with the increase of H content. The room temperature compression at same strain rate indicates that the σmax decreases with the increase of hydrogen content. High temperature (1400 °C) compression at same strain rate indicates that H addition can cause the peak strain to take place in advance at high deforming temperature. The high temperature compression stress tends to firstly increase and then decrease due to the effect of H addition. The reason for the effects of hydrogenation on the high temperature compression stress of Nb-20Si-6Mo alloy has been discussed.

KW - Hot deformation

KW - Melt hydrogenation

KW - Microstructure

KW - Nb-Si based alloys

UR - https://www.scopus.com/pages/publications/85029627530

U2 - 10.1016/j.ijhydene.2017.08.163

DO - 10.1016/j.ijhydene.2017.08.163

M3 - 文章

AN - SCOPUS:85029627530

SN - 0360-3199

VL - 42

SP - 26417

EP - 26422

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 42

ER -

Microstructures and mechanical properties of melt hydrogenated Nb-Si based alloy

Abstract

UN SDGs

Keywords

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