高速撞击Ti44Ni47Nb9合金相变行为及力学性能研究

Yingying Zhu; Haizhen Wang; Guangyuan Wen; Zhiyong Gao; Wei Cai

高速撞击Ti₄₄Ni₄₇Nb₉合金相变行为及力学性能研究

Translated title of the contribution: Phase Transformation and Mechanical Properties of Ti₄₄Ni₄₇Nb₉ Alloy after High-velocity Impact

Yingying Zhu
, Haizhen Wang
, Guangyuan Wen
, Zhiyong Gao^*
, Wei Cai

^*Corresponding author for this work

Harbin Institute of Technology

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

Abstract

Aiming at the urgent demand for reliability assessment of TiNi based alloy working in space, Ti₄₄Ni₄₇Nb₉ alloy was impacted at 1020 m/s using a powder gun. Phase transformation, microstructure and mechanical properties of Ti₄₄Ni₄₇Nb₉ alloy induced by impact were investigated. The results show that no intermediate phase is formed along the impact direction. The phase transformation temperature shifts to a lower temperature along 45° and vertical to the impact direction of impacted Ti₄₄Ni₄₇Nb₉ alloy. A large number of cracks appear at the bottom of the crater and walls, there are martensite plates in TiNi matrix, and many dislocations exist in the β-Nb particles and TiNi matrix. The microhardness declines gradually with the increase in distance from the crate, which is attributed to working hardening and uneven energy distribution caused by high-velocity impact.

Translated title of the contribution	Phase Transformation and Mechanical Properties of Ti₄₄Ni₄₇Nb₉ Alloy after High-velocity Impact
Original language	Chinese (Traditional)
Pages (from-to)	317-320
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	47
Issue number	1
State	Published - 1 Jan 2018
Externally published	Yes

Cite this

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title = "高速撞击Ti44Ni47Nb9合金相变行为及力学性能研究",

abstract = "Aiming at the urgent demand for reliability assessment of TiNi based alloy working in space, Ti44Ni47Nb9 alloy was impacted at 1020 m/s using a powder gun. Phase transformation, microstructure and mechanical properties of Ti44Ni47Nb9 alloy induced by impact were investigated. The results show that no intermediate phase is formed along the impact direction. The phase transformation temperature shifts to a lower temperature along 45° and vertical to the impact direction of impacted Ti44Ni47Nb9 alloy. A large number of cracks appear at the bottom of the crater and walls, there are martensite plates in TiNi matrix, and many dislocations exist in the β-Nb particles and TiNi matrix. The microhardness declines gradually with the increase in distance from the crate, which is attributed to working hardening and uneven energy distribution caused by high-velocity impact.",

keywords = "High-velocity impact, Mechanical properties, Microstructure, Phase transformation, TiNiNb alloy",

author = "Yingying Zhu and Haizhen Wang and Guangyuan Wen and Zhiyong Gao and Wei Cai",

year = "2018",

month = jan,

day = "1",

language = "繁体中文",

volume = "47",

pages = "317--320",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

publisher = "Science Press ",

number = "1",

}

TY - JOUR

T1 - 高速撞击Ti44Ni47Nb9合金相变行为及力学性能研究

AU - Zhu, Yingying

AU - Wang, Haizhen

AU - Wen, Guangyuan

AU - Gao, Zhiyong

AU - Cai, Wei

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Aiming at the urgent demand for reliability assessment of TiNi based alloy working in space, Ti44Ni47Nb9 alloy was impacted at 1020 m/s using a powder gun. Phase transformation, microstructure and mechanical properties of Ti44Ni47Nb9 alloy induced by impact were investigated. The results show that no intermediate phase is formed along the impact direction. The phase transformation temperature shifts to a lower temperature along 45° and vertical to the impact direction of impacted Ti44Ni47Nb9 alloy. A large number of cracks appear at the bottom of the crater and walls, there are martensite plates in TiNi matrix, and many dislocations exist in the β-Nb particles and TiNi matrix. The microhardness declines gradually with the increase in distance from the crate, which is attributed to working hardening and uneven energy distribution caused by high-velocity impact.

AB - Aiming at the urgent demand for reliability assessment of TiNi based alloy working in space, Ti44Ni47Nb9 alloy was impacted at 1020 m/s using a powder gun. Phase transformation, microstructure and mechanical properties of Ti44Ni47Nb9 alloy induced by impact were investigated. The results show that no intermediate phase is formed along the impact direction. The phase transformation temperature shifts to a lower temperature along 45° and vertical to the impact direction of impacted Ti44Ni47Nb9 alloy. A large number of cracks appear at the bottom of the crater and walls, there are martensite plates in TiNi matrix, and many dislocations exist in the β-Nb particles and TiNi matrix. The microhardness declines gradually with the increase in distance from the crate, which is attributed to working hardening and uneven energy distribution caused by high-velocity impact.

KW - High-velocity impact

KW - Mechanical properties

KW - Microstructure

KW - Phase transformation

KW - TiNiNb alloy

UR - https://www.scopus.com/pages/publications/85052683344

M3 - 文章

AN - SCOPUS:85052683344

SN - 1002-185X

VL - 47

SP - 317

EP - 320

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 1

ER -

高速撞击Ti₄₄Ni₄₇Nb₉合金相变行为及力学性能研究

Abstract

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