Characterization of a new type grain boundary phase in near-β titanium alloys

被引：7

作者：

Zhang, Hongling ^{[1
]}

Zhang, Xiaoyong ^{[1
]}

Zhu, Zhishou ^{[2
]}

Li, Chao ^{[3
]}

Zhou, Kechao ^{[1
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

[2] AECC Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China

[3] Xiangtou Goldsky Titanium Ind, Changsha 410015, Hunan, Peoples R China

来源：

SCRIPTA MATERIALIA | 2020年 / 177卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Titanium alloys; Aging; Phase transformation; Crystal structure; omega ' phase; OMEGA-PHASE; VARIANT SELECTION; MECHANICAL-PROPERTIES; HIGH-STRENGTH; ALPHA; PRECIPITATION; TRANSFORMATIONS;

D O I：

10.1016/j.scriptamat.2019.10.020

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

After 920 degrees C/120min -> WQ+ 780 degrees C/300 min --> air fast cooling heat treatment, a banded omega' phase distributing at interfaces between the beta matrix and grain boundary alpha phase was discovered in a Ti-4.5Al-6.5Mo-2Cr-2.5Nb-2Zr-1Sn (wt%) alloy. The omega' phase shows a P6/mmm hexagonal close packed lattice crystal structure and its lattice parameters are a = 0.399 nm, c = 0.282nm. The orientation relationship between omega' and adjacent beta phase are (110)beta 1//(1 (1) over bar 00)(omega'), (111)beta(1)//(0001)(omega'), and (112)(beta 1)//(11 (2) over bar0)(omega'). The atom migration path during the beta -> omega' (.0' phase is (121)(beta) plane collapse along the <010>beta direction. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：118 / 122

页数：5

共 50 条

[1] Research Progress of ω Phase in Near-β Titanium Alloys
He Tao
Feng Yong
Luo Wenzhong
He Yongsheng
Lai Yunjin
Chen Haisheng
RARE METAL MATERIALS AND ENGINEERING, 2018, 47 (02) : 705 - 710
[2] Suppression of Grain Boundary α Formation by Addition of Silicon in a Near-β Titanium Alloy
Nakai, Masaaki
Niinomi, Mitsuo
Liu, Huihong
Kitashima, Tomonori
MATERIALS TRANSACTIONS, 2019, 60 (09) : 1749 - 1754
[3] Modeling of the effect of the β phase deformation on the α phase precipitation in near-β titanium alloys
Teixeira, Julien Da Costa
Appolaire, Benoit
Aeby-Gautier, Elisabeth
Denis, Sabine
ACTA MATERIALIA, 2006, 54 (16) : 4261 - 4271
[4] Suppression of isothermal ω phase by dislocation tangles and grain boundaries in metastable β-type titanium alloys
Guo, Shun
Meng, Qingkun
Hu, Liang
Liao, Guangyue
Zhao, Xinqing
Xu, Huibin
JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 550 : 35 - 38
[5] Phase Transformation and Microstructure Evolution in Near-β Ti-7333 Titanium Alloy During Aging
Hui, Qiong
Xue, Xiangyi
Kou, Hongchao
Lai, Minjie
Tang, Bin
Li, Jinshan
HIGH PERFORMANCE STRUCTURE MATERIALS, 2013, 747-748 : 904 - 911
[6] Preferred precipitation of ordered α2 phase at dislocations and boundaries in near-α titanium alloys
Zhang, J
Li, D
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 341 (1-2): : 229 - 235
[7] Modeling of the phase transformations in near-β titanium alloys during the cooling after forging
Teixeira, Julien Da Costa
Appolaire, Benoit
Aeby-Gautier, Elisabeth
Denis, Sabine
Hericher, Ludovic
COMPUTATIONAL MATERIALS SCIENCE, 2008, 42 (02) : 266 - 280
[8] Formation regularities of grain-boundary interlayers of the α-Ti phase in binary titanium alloys
Gornakova, A. S.
Prokofiev, S. I.
Kolesnikova, K. I.
Straumal, B. B.
RUSSIAN JOURNAL OF NON-FERROUS METALS, 2016, 57 (03) : 229 - 235
[9] Origin of morphological variation of grain boundary precipitates in titanium alloys
Shi, Rongpei
Li, Dian
Antonov, Stoichko
Liu, Xingjun
Zheng, Yufeng
SCRIPTA MATERIALIA, 2022, 214
[10] Grain boundary segregation and its implications regarding the formation of the grain boundary α phase in the metastable ,B-Titanium Ti-5Al-5Mo-5V-3Cr alloy
Prithiv, T. S.
Kloenne, Zachary
Li, Dian
Shi, Rongpei
Zheng, Yufeng
Fraser, Hamish L.
Gault, Baptiste
Antonov, Stoichko
SCRIPTA MATERIALIA, 2022, 207

← 1 2 3 4 5 →