Effect of carbon addition on the microstructure and mechanical properties of Nb-30Ti-18Al alloy

被引：5

作者：

Yu, C. X. ^{[1
]}

Zhao, X. J. ^{[1
]}

Xiao, L. R. ^{[1
,2
]}

Liu, J. F. ^{[1
]}

Guo, L. ^{[1
]}

Cai, Z. Y. ^{[1
]}

机构：

[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China

[2] Cent S Univ, Minist Educ, Key Lab Nonferrous Met Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2016年 / 666卷

关键词：

Nb-30Ti-18Al; Phase transformations; Orientation relationship; Compressive strength; Fracture toughness; IN-SITU COMPOSITES; TI-C ALLOYS; HIGH-TEMPERATURE STRENGTH; PHASE-DIAGRAM; DIFFUSION MULTIPLES; FRACTURE-TOUGHNESS; SYSTEM; AL; MO; MOLYBDENUM;

D O I：

10.1016/j.msea.2016.04.057

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Nb-30Ti-18Al alloys doped with the amounts of 0 at%, 1 at% and 5 at% carbon were prepared by arc melting and annealing. The effects of carbon addition on the microstructure and mechanical properties of Nb-ss/Nb3Al in situ composites as well as the strengthening mechanisms were investigated. The results showed that during annealing at 1200 degrees C, supersaturated Nb-ss decomposed and Nb3Al phase precipitated in C-free alloy, while carbide decomposed with the precipitation of Nb3Al in C-doped alloys. Furthermore, the orientation relationship of Nb3Al phase and the surrounding (Nb, Ti)C was observed in Nb-30Ti-18Al-5C (NA5) alloy. Additionally, with increasing the carbon content, the compressive strength of alloys at high temperature were improved significantly ascribed to the occurrence of solid solution and volume fraction increase of strengthen phase, while the fracture toughness decreased due to the volume fraction decrease of Nbss. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：199 / 206

页数：8

共 50 条

[1] Microstructure and Mechanical Properties of Nb-20Ti-16Al Alloy with Carbon Addition
Yu C.
Xiao L.
Zhao X.
Liu J.
Guo L.
Cai Z.
[J]. Xiyou Jinshu/Chinese Journal of Rare Metals, 2017, 41 (09): : 980 - 984
[2] Effect of Pd Addition on the Microstructure of Ti-30Nb Alloy
Zywicki, P.
Ping, D. H.
Abe, T.
Garbacz, H.
Yamabe-Mitarai, Y.
Kurzydlowski, K. J.
[J]. METALS AND MATERIALS INTERNATIONAL, 2015, 21 (04) : 617 - 622
[3] Effect of Pd addition on the microstructure of Ti-30Nb alloy
P. Żywicki
D. H. Ping
T. Abe
H. Garbacz
Y. Yamabe-Mitarai
K. J. Kurzydłowski
[J]. Metals and Materials International, 2015, 21 : 617 - 622
[4] Effect of Re and Al additions on the microstructure and mechanical properties of Nb-18Ti-12W alloy
Senkov, O. N.
Rao, S. I.
Miracle, D. B.
Mann, A. E.
Yousefiani, A.
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2023, 870
[5] The effect of Nb addition on microstructure and mechanical properties of Ni3(Si,Ti) alloy
Takasugi, T
Yoshida, M
[J]. JOURNAL OF MATERIALS SCIENCE, 2001, 36 (03) : 643 - 651
[6] The effect of Nb addition on microstructure and mechanical properties of Ni3(Si,Ti) alloy
T. Takasugi
M. Yoshida
[J]. Journal of Materials Science, 2001, 36 : 643 - 651
[7] Effect of deformed microstructure on mechanical properties of Ti-22Al-25Nb alloy
程云君
李世琼
梁晓波
张建伟
[J]. Transactions of Nonferrous Metals Society of China, 2006, (S3) : 2058 - 2061
[8] Effect of deformed microstructure on mechanical properties of Ti-22Al-25Nb alloy
Cheng Yun-jun
Li Shi-qiong
Liang Xiao-bo
Zhang Jian-wei
[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2006, 16 : S2058 - S2061
[9] Effect of Mn on microstructure and mechanical properties of Ti-45Al-10Nb alloy
Chen, Guoliang
Wang, Yandong
Zhu, Danqing
[J]. Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Matals, 1996, 6 (02):
[10] Effect of oxygen addition and annealing time on microstructure and mechanical properties of Ti–34Nb alloy
Jun-shuai Wang
Wen-long Xiao
Lei Ren
Yu Fu
Chao-li Ma
[J]. Journal of Iron and Steel Research International, 2023, 30 : 158 - 164

← 1 2 3 4 5 →