Acta Metall Sin  1993, Vol. 29 Issue (1): 43-48    DOI:

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PLASTICITY AND TOUGHNESS OF Ti-24Al-11Nb ALLOY

WNAG Yandong;YANG Wangyue;CHEN Guoliang;ZHU Shijie University of Science and Technology Beijing; Institute of Metal Research; Academia Sinica; Shenyang

WNAG Yandong;YANG Wangyue;CHEN Guoliang;ZHU Shijie University of Science and Technology Beijing; Institute of Metal Research; Academia Sinica; Shenyang. PLASTICITY AND TOUGHNESS OF Ti-24Al-11Nb ALLOY. Acta Metall Sin, 1993, 29(1): 43-48.

Abstract References Related Articles Recommended Metrics Download:  PDF(1290KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Room temperature plastic properties and notch fracture toughness ofTi-Al-Nb alloy with two microstructures, i. e., basketweave α_2+β and equiaxed α_2 distributed inbasketweave α_2+β respectively, were studied by means of three-point bending test. The plas-tic properties, such as fracture deflection f_(max), fracture strain ε_f and strain energy U, were de-rived from load vs cross-head displacement curves, which were measured by smooth speci-mens of 20×5×2.5 (mm), and notch fracture toughness K_c~R were decided by the same sizesamples, with the notch of 2.5 mm depth and 0.05 mm radius. The experimental resultsshowed that the notched samples of Ti-24Al-11Nb alloys fractured in brittle behaviour inspite of 8.8% fracture strain and the alloy with microstructures basketweave α_2+β has agreater fracture toughness than that with equiaxed α_2 distributed in basketweave α_2+β atthe same ductility level. The influence of the length and radius of notch on fracture toughnessis discussed also. Key words:  plasticity      toughness      Ti-Al-Nb alloy      three-point bending test      Received:  18 January 1993      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1993/V29/I1/43 1 Reuss S, Vehoff H. Scr Metall Mater., 1990; 24: 1021 2 杨王玥,王沿东,陈国良,孙祖庆,祝东.材料科学工程与进展,待发表 3 王铮.断裂力学,南宁:广西人民出版社,1982:77 [1] XU Yongsheng, ZHANG Weigang, XU Lingchao, DAN Wenjiao. Simulation of Deformation Coordination and Hardening Behavior in Ferrite-Ferrite Grain Boundary[J]. 金属学报, 2023, 59(8): 1042-1050. [2] WANG Bin, NIU Mengchao, WANG Wei, JIANG Tao, LUAN Junhua, YANG Ke. Microstructure and Strength-Toughness of a Cu-Contained Maraging Stainless Steel[J]. 金属学报, 2023, 59(5): 636-646. [3] ZHANG Zhefeng, LI Keqiang, CAI Tuo, LI Peng, ZHANG Zhenjun, LIU Rui, YANG Jinbo, ZHANG Peng. Effects of Stacking Fault Energy on the Deformation Mechanisms and Mechanical Properties of Face-Centered Cubic Metals[J]. 金属学报, 2023, 59(4): 467-477. [4] CHEN Xueshuang, HUANG Xingmin, LIU Junjie, LV Chao, ZHANG Juan. Microstructure Regulation and Strengthening Mechanisms of a Hot-Rolled & Intercritical Annealed Medium-Mn Steel Containing Mn-Segregation Band[J]. 金属学报, 2023, 59(11): 1448-1456. [5] LIANG Chen, WANG Xiaojuan, WANG Haipeng. Formation Mechanism of B2 Phase and Micro-Mechanical Property of Rapidly Solidified Ti-Al-Nb Alloy[J]. 金属学报, 2022, 58(9): 1169-1178. [6] GU Ruicheng, ZHANG Jian, ZHANG Mingyang, LIU Yanyan, WANG Shaogang, JIAO Da, LIU Zengqian, ZHANG Zhefeng. Fabrication of Mg-Based Composites Reinforced by SiC Whisker Scaffolds with Three-Dimensional Interpenetrating-Phase Architecture and Their Mechanical Properties[J]. 金属学报, 2022, 58(7): 857-867. [7] ZHENG Shijian, YAN Zhe, KONG Xiangfei, ZHANG Ruifeng. Interface Modifications on Strength and Plasticity of Nanolayered Metallic Composites[J]. 金属学报, 2022, 58(6): 709-725. [8] ZHANG Xinfang, XIANG Siqi, YI Kun, GUO Jingdong. Controlling the Residual Stress in Metallic Solids by Pulsed Electric Current[J]. 金属学报, 2022, 58(5): 581-598. [9] LI Wei, JIA Xingqi, JIN Xuejun. Research Progress of Microstructure Control and Strengthening Mechanism of QPT Process Advanced Steel with High Strength and Toughness[J]. 金属学报, 2022, 58(4): 444-456. [10] FENG Kai, GUO Yanbing, FENG Yulei, YAO Chengwu, ZHU Yanyan, ZHANG Qunli, LI Zhuguo. Microstructure Controlling and Properties of Laser Cladded High Strength and High Toughness Fe-Based Coatings[J]. 金属学报, 2022, 58(4): 513-528. [11] GUO Xiangru, SHEN Junjie. Modelling of the Plastic Behavior of Cu Crystal with Twinning-Induced Softening and Strengthening Effects[J]. 金属学报, 2022, 58(3): 375-384. [12] ZHU Dongming, HE Jiangli, SHI Genhao, WANG Qingfeng. Effect of Welding Heat Input on Microstructure and Impact Toughness of the Simulated CGHAZ in Q500qE Steel[J]. 金属学报, 2022, 58(12): 1581-1588. [13] GUO Haohan, YANG Jie, LIU Fang, LU Rongsheng. Constraint Related Fatigue Crack Initiation Life of GH4169 Superalloy[J]. 金属学报, 2022, 58(12): 1633-1644. [14] ZHOU Cheng, ZHAO Tan, YE Qibin, TIAN Yong, WANG Zhaodong, GAO Xiuhua. Effects of Tempering Temperature on Microstructure and Low-Temperature Toughness of 1000 MPa Grade NiCrMoV Low Carbon Alloyed Steel[J]. 金属学报, 2022, 58(12): 1557-1569. [15] HU Chen, PAN Shuai, HUANG Mingxin. Strong and Tough Heterogeneous TWIP Steel Fabricated by Warm Rolling[J]. 金属学报, 2022, 58(11): 1519-1526. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed