Study on the Stability of T' Phase in the Al-Zn-Cu Ternary System

Abstract

Abstract: The phase constitutes and phase compositions in the eight alloys designed with different compositions of Al-Zn-Cu system have been determined after the homogenous treatment and then equilibrium cooling to 20±C by use of optical microscope, electron probe microanalysis and X-ray di®raction. It has been found that there existed the T0 phase in the seven alloys. Consequently, it was testified that the T0 phase was stable at room temperature. At the same time, the phase relationship was not locally right for the isothermal section of 20±C of Al-Zn-Cu system of the ASM published in 1997.

Key words: Al-Zn-Cu ternary system, phase diagram, T' phase, equilibrium treatment

H. Chen, X. Xin, D.Y. Dong, Y.P. Ren , S.M. Hao. Study on the Stability of T' Phase in the Al-Zn-Cu Ternary System[J]. Acta Metallurgica Sinica (English Letters), 2004, 17(3): 269-273 .

References

Related Articles 15

[1]	K.W. Richter, H. Ipser. CONTACT MATERIALS FOR GaSb AND InSb: A PHASE DIAGRAM APPROACH [J]. Acta Metallurgica Sinica (English Letters), 2002, 15(2): 143-148 .
[2]	J. Guo (Department of Physics, Guangxi University, Nanning 530004, China). COMPUTERIZED PREDICTION OF INTERACTION PARAMETERS AND PHASE DIAGRAMS OF CONTINUOUS SOLID SOLUTION OF BINARY ALLOY SYSTEMS [J]. Acta Metallurgica Sinica (English Letters), 1999, 12(3): 216-220.
[3]	Y.G. Wang; F.M Yang; C.P. Chen, N Tang; and Q.D. Wang (State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603,Beijing 100080, China)(Department of Materials Science and Engineering, Zheiang University Hangzhou 310027, China). MAGNETIC PHASE DIAGRAM OF SmMn_2(Ge_(1-x)Si_x)_2 SYSTEM [J]. Acta Metallurgica Sinica (English Letters), 1997, 10(1): 61-64.
[4]	K.H Zhang and L.L. Chen (Institute of Precious Metals, Kunming 650221, China). 700℃ ISOTHERMAL SECTION OF THE Pd-Ru-Gd PARTIAL PHASE DIAGRAM [J]. Acta Metallurgica Sinica (English Letters), 1996, 9(5): 329-332.
[5]	SHAO Zhongbao;LIU Kuiren;MENG Bo;LI Ying;YANG Yuqing(Department of Chemistry,Northeastern University,Shenyang 110006, China) LIU Huakun;DOU Shixue(University of New South Wales,Kensington,Australia). EQUILIBRIUM PHASE DIAGRAMS IN SYSTEM CuO-PbO-Ag [J]. Acta Metallurgica Sinica (English Letters), 1996, 9(2): 99-102.
[6]	KEIZO HASHIMOTO(Advanced Technologies Research Laboratories Nippon Steel Corp.1618 Ida Nakahara-ku Kawasaki 211 JAPAN). TiAl ALLOYS FOR INDUSTRIAL USE [J]. Acta Metallurgica Sinica (English Letters), 1995, 8(z1): 509-518.
[7]	LI Wenchao; LI Xingkang;WANG Jian;ZHOU Guozhi (University of Science and Technology Beijing, Beijing, China)SUN Guiru (General Research Institute for Non-Ferrous Metals, Beijing 100088, China Manuscript received 5 January,1995). ASSESSMENT OF THERMODYNAMIC DATA AND STABILITY OF INTERMETALLIC COMPOUNDS [J]. Acta Metallurgica Sinica (English Letters), 1995, 8(1): 15-18.
[8]	HE Chunxiao, ZHANG Kanghou, CHEN LiliInstitute of Precious Metals, Kunming, China. PARTIAL PHASE DIAGRAM OF Ag-Cu-Tb SYSTEM [J]. Acta Metallurgica Sinica (English Letters), 1994, 7(1): 54-56.
[9]	ZHENG Chaogui BAO Chenglin QIAO Zhiyu YE Yupu Peking University,Beijing,China 1 University of Science and Technology Beijing,Beijing,China Associate Professor,Department of Chemistry,Peking University,Beijing 100871,China. PHASE DIAGRAM OF PrCl_3-SrCl_2-CaCl_2 SYSTEM [J]. Acta Metallurgica Sinica (English Letters), 1993, 6(7): 46-51.
[10]	LIU Guoquan XU Pingguo University of Science and Technology Beijing,Beijing,China professor,University of Science and Technology Beijing,Beijing 100083,China. THREE-DIMENSIONAL TOPOLOGICAL ANALYSIS OF Nd-Fe-B AND Pr-Fe-B PHASE DIAGRAMS [J]. Acta Metallurgica Sinica (English Letters), 1993, 6(11): 319-323.
[11]	ZHANG Yifeng MENG Bo GU Yunyan Northeast University of Technology,Shenyang,China Professor,Department of Chemistry,Northeast University of Technology,Shenyang 110006,China. PHASE DIAGRAMS OF SYSTEMS SmCl_3-CaCl_2 AND SmCl_3-LiCl [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(9): 219-220.
[12]	CHE Guangcan Institute of Physics,Academia Sinica,Beijing,ChinaM.ELLNER Max-Planck Institut for Metallforschung,Stuttgart,Germany Associate Professor,Institute of Physics,Academia Sinica,Beijing 100080,China. PHASE DIAGRAM OF Bi-Pb-T1 TERNARY SYSTEM [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(9): 221-223.
[13]	ZHENG Chaogui;LIU Hongping;QIAO Zhiyu;YE Yupu Peking University,Beijing.China. LIQUIDUS OF TERNARY SYSTEM LaCl_3-MgCl_2-LiCl [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(12): 443-446.
[14]	GONG Fangyuc Tianjin University,Tianjin,China JI GOLDSTEIN LChigh University Bethlchem,U.S.A.. 550 AND 450°C ISOTHERMAL SECTIONS OF Fe-Ni-C PHASE DIAGRAM [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(12): 471-475.
[15]	ZHANG Kanghou CHEN Lili Kunming Institute of Precious Metals,Kunming,China ZHANG Kanghou,Kunming Institute of Precious Metals,Kunming 650221,China. ROOM TEMPERATURE AND 750℃ ISOTHERMAL SECTION OF Ag-Pd-Gd(Gd≤25 AT.-%)PHASE DIAGRAM [J]. Acta Metallurgica Sinica (English Letters), 1990, 3(8): 131-133.