Microstructure and mechanical properties of a novel Ti-Al-Cr-Fe titanium alloy after solution treatment

被引：19
作者：
Wang, Zhenguo [1 ,2 ]
Cai, Haijiao [1 ]
Hui, Songxiao [2 ]
机构：
[1] Grikin Adv Mat Co Ltd, Beijing 102200, Peoples R China
[2] Gen Res Inst Nonferrous Met, State Key Lab Fabricat & Proc Nonferrous Met, Beijing 100088, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 640卷
基金：
中国国家自然科学基金;
关键词：
Solution treatment; Martensitic transformation; Microstructure; Ti-3.0Al-3.7Cr-2.0Fe; Tensile properties; HEAT-TREATMENT; COOLING RATE; PHASE-TRANSFORMATION; TENSILE PROPERTIES; BETA; ELEMENTS; MARTENSITE; EVOLUTION; STRENGTH; MODULUS;
D O I：
10.1016/j.jallcom.2015.04.038
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The relationship between microstructure and mechanical properties of a novel Ti-3.0Al-3.7Cr-2.0Fe alloy were studied. The effects of cooling rates and solution temperature were considered. The analysis methods of optical microscope (OM), X-ray diffractometer (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM) were used. The results indicate that beta and alpha phase in this alloy are obtained after solution treated at 1183 K on the cooling ways of air cooling and furnace cooling; and beta and alpha '' martensite are observed after quenching in water. Besides, the volume of alpha phase is decreased with increasing solution temperature. In the present study, the ultimate strength 1065 MPa with 12.0% in elongation of the alloy is acquired under the heat treatment condition of 1183 K/30 min/AC, and the strength-ductility combination in this case is also the best. Under the heat treatment condition of 1183 K/30 min/WQ, the elasticity modulus of the alloy is only 91.3 GPa, as a result of the lower elasticity modulus of beta phase. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：253 / 259
页数：7
相关论文
共 32 条
[1]   Phase transformations during cooling in α+β titanium alloys [J].
Ahmed, T ;
Rack, HJ .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 243 (1-2) :206-211
[2]   Enhancement of athermal α" martensitic transformation in Ti-10V-2Fe-3Al alloy due to high-speed hot deformation [J].
Akanuma, Toshiyuki ;
Matsumoto, Hiroaki ;
Sato, Shigeo ;
Chiba, Akihiko ;
Inagaki, Ikuhiro ;
Shirai, Yoshihisa ;
Maeda, Takashi .
SCRIPTA MATERIALIA, 2012, 67 (01) :21-24
[3]   The effect of heat treatment and HCF performance on hydrogen trapping mechanism in Timetal LCB alloy [J].
Barel, E. ;
Ben Hamu, G. ;
Eliezer, D. ;
Wagner, L. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 468 (1-2) :77-86
[4]   Effect of cooling rate on mechanism of β → α phase transformation on continuous cooling in Ti-5Ta-1.8Nb alloy [J].
Behera, Madhusmita ;
Mythili, R. ;
Raju, S. ;
Saroja, S. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 553 :59-68
[5]   Role of alloying elements in microstructure evolution and alloying elements behaviour during sintering of a near-β titanium alloy [J].
Carman, A. ;
Zhang, L. C. ;
Ivasishin, O. M. ;
Savvakin, D. G. ;
Matviychuk, M. V. ;
Pereloma, E. V. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (03) :1686-1693
[6]  
Collings E.W., 1984, ASM HDB, P3
[7]   Effect of heat treatment on microstructure and mechanical properties of a new β high strength titanium alloy [J].
Du, Zhaoxin ;
Xiao, Shulong ;
Xu, Lijuan ;
Tian, Jing ;
Kong, Fantao ;
Chen, Yuyong .
MATERIALS & DESIGN, 2014, 55 :183-190
[8]  
Feng R, 2008, RARE METAL MAT ENG, V37, P1785
[9]   The effect of microstructure on the mechanical properties of two-phase titanium alloys [J].
Filip, R ;
Kubiak, K ;
Ziaja, W ;
Sieniawski, J .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 133 (1-2) :84-89
[10]   Formation of α-Widmanstatten structure:: effects of grain size and cooling rate on the Widmanstatten morphologies and on the mechanical properties in Ti6Al4V alloy [J].
Gil, FJ ;
Ginebra, MP ;
Manero, JM ;
Planell, JA .
JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 329 (1-2) :142-152
1234