POSITRON ANNIHILATION LIFETIME ANALYSIS OF 8090 ALLOY WITH DOPING Zn, Ag OR Sc UNDER CRYOGENIC TEMPERATURES

Acta Metall Sin

1995, Vol. 31

Issue (14): 91-96 DOI:

Current Issue | Archive | Adv Search

POSITRON ANNIHILATION LIFETIME ANALYSIS OF 8090 ALLOY WITH DOPING Zn, Ag OR Sc UNDER CRYOGENIC TEMPERATURES

GAO Yingjun; WU Weiming; FENG Guanzhi; XU Shaojie; RUAN Xiangdong(Guangxi University; Nanning 530004)(Manuscript received 94-03-11)

Cite this article:

GAO Yingjun; WU Weiming; FENG Guanzhi; XU Shaojie; RUAN Xiangdong(Guangxi University; Nanning 530004)(Manuscript received 94-03-11). POSITRON ANNIHILATION LIFETIME ANALYSIS OF 8090 ALLOY WITH DOPING Zn, Ag OR Sc UNDER CRYOGENIC TEMPERATURES. Acta Metall Sin, 1995, 31(14): 91-96.

Download:

PDF(451KB)
Export: BibTeX | EndNote (RIS)

Abstract The positron annihilation lifetime of 8090 alloy and that added Zn, Ag or Sc were measured in the temperature range of 25—273 K. Results showed that the short life component of τ1 = 175—187 ps is a typical positron annihilation lifetime incoherent δ'(Al3Li) phase particles, and the long one τ2 is obviously dependent on temperature.The temperature dependence of τ2 in 4 alloys can be well interpreted and the behaviour of vacancy be deduced as long as the influence of both vacancy and grain boundray on τ2 is considered.Correspondent: GAO Yingjun, lecturer,(Department of Physics, Guangxi University, Nanning 530004)

Key words: 8090 alloy positron annihilation lifetime cryogenic temperature vacancy Zn Ag Sc

	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/Y1995/V31/I14/91

1蒋晓军．博士学位论文,中国科学院金属研究所,19932KirkegardP,EldrupM．ComputPhysCommum,1974;7:4013郁伟中．正电子湮没寿命谱仪．北京:清华大学出版社,19894 DludekG,KrauseS,KrauseH,BeresinaAL,MikhalenkovVS,ChuistovKV．JPhys:CondensMatter,1992:4:63175JdelRio,NdeDiego,DFink．JPhys:CondensMatter,1989;1:44416蒋晓军,邓文,桂全红,李依依,熊良钺,师昌绪．金属学报,1993;29:A5287DlubekG,KrauseH,KrauseS,LademannP．MaterSciForum,1992,105:9778夏元复,倪新伯,彭郁卿．实验核物理应用方法．北京:科学出版社,19899 邓文,熊良钺,龙期威,王淑荷,郭建亭．金属学报,1992;28:A442

[1]	ZHENG Liang, ZHANG Qiang, LI Zhou, ZHANG Guoqing. Effects of Oxygen Increasing/Decreasing Processes on Surface Characteristics of Superalloy Powders and Properties of Their Bulk Alloy Counterparts: Powders Storage and Degassing[J]. 金属学报, 2023, 59(9): 1265-1278.
[2]	ZHANG Leilei, CHEN Jingyang, TANG Xin, XIAO Chengbo, ZHANG Mingjun, YANG Qing. Evolution of Microstructures and Mechanical Properties of K439B Superalloy During Long-Term Aging at 800^oC[J]. 金属学报, 2023, 59(9): 1253-1264.
[3]	JIANG He, NAI Qiliang, XU Chao, ZHAO Xiao, YAO Zhihao, DONG Jianxin. Sensitive Temperature and Reason of Rapid Fatigue Crack Propagation in Nickel-Based Superalloy[J]. 金属学报, 2023, 59(9): 1190-1200.
[4]	ZHAO Peng, XIE Guang, DUAN Huichao, ZHANG Jian, DU Kui. Recrystallization During Thermo-Mechanical Fatigue of Two High-Generation Ni-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1221-1229.
[5]	LIU Wei, CHEN Wanqi, MA Menghan, LI Kailun. Review of Irradiation Damage Behavior of Tungsten Exposed to Plasma in Nuclear Fusion[J]. 金属学报, 2023, 59(8): 986-1000.
[6]	MU Yahang, ZHANG Xue, CHEN Ziming, SUN Xiaofeng, LIANG Jingjing, LI Jinguo, ZHOU Yizhou. Modeling of Crack Susceptibility of Ni-Based Superalloy for Additive Manufacturing via Thermodynamic Calculation and Machine Learning[J]. 金属学报, 2023, 59(8): 1075-1086.
[7]	LI Shilei, LI Yang, WANG Youkang, WANG Shengjie, HE Lunhua, SUN Guang'ai, XIAO Tiqiao, WANG Yandong. Multiscale Residual Stress Evaluation of Engineering Materials/Components Based on Neutron and Synchrotron Radiation Technology[J]. 金属学报, 2023, 59(8): 1001-1014.
[8]	LU Yuhua, WANG Haizhou, LI Dongling, FU Rui, LI Fulin, SHI Hui. A Quantitative and Statistical Method of γ' Precipitates in Superalloy Based on the High-Throughput Field Emission Scanning Eelectron Microscope[J]. 金属学报, 2023, 59(7): 841-854.
[9]	ZHANG Lu, YU Zhiwei, ZHANG Leicheng, JIANG Rong, SONG Yingdong. Thermo-Mechanical Fatigue Cycle Damage Mechanism and Numerical Simulation of GH4169 Superalloy[J]. 金属学报, 2023, 59(7): 871-883.
[10]	ZHANG Qiliang, WANG Yuchao, LI Guangda, LI Xianjun, HUANG Yi, XU Yunze. Erosion-Corrosion Performance of EH36 Steel Under Sand Impacts of Different Particle Sizes[J]. 金属学报, 2023, 59(7): 893-904.
[11]	WANG Zongpu, WANG Weiguo, Rohrer Gregory S, CHEN Song, HONG Lihua, LIN Yan, FENG Xiaozheng, REN Shuai, ZHOU Bangxin. {111}/{111} Near Singular Boundaries in an Al-Zn-Mg-Cu Alloy Recrystallized After Rolling at Different Temperatures[J]. 金属学报, 2023, 59(7): 947-960.
[12]	LIANG Kai, YAO Zhihao, XIE Xishan, YAO Kaijun, DONG Jianxin. Correlation Between Microstructure and Properties of New Heat-Resistant Alloy SP2215[J]. 金属学报, 2023, 59(6): 797-811.
[13]	ZHANG Deyin, HAO Xu, JIA Baorui, WU Haoyang, QIN Mingli, QU Xuanhui. Effects of Y₂O₃ Content on Properties of Fe-Y₂O₃ Nanocomposite Powders Synthesized by a Combustion-Based Route[J]. 金属学报, 2023, 59(6): 757-766.
[14]	WANG Hanyu, LI Cai, ZHAO Can, ZENG Tao, WANG Zumin, HUANG Yuan. Direct Alloying of Immiscible Tungsten and Copper Based on Nano Active Structure and Its Thermodynamic Mechanism[J]. 金属学报, 2023, 59(5): 679-692.
[15]	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.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed