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Interfacial morphologies between iron and Ag-Cu-Sn alloy

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Chinese Science Bulletin 1999年第16期44卷 1463-1466页

作者： Hong Li Haifeng Zhang Longbao Wang Guangjie Zhai bingzhe ding Zhenhong Mai Zhuangqi Hu Chinese Acad Sci Inst Met Res State Key Lab Rapidly Solidified Nonequilibrium A Shenyang 110015 Peoples R China Chinese Acad Sci Inst Phys Beijing 100080 Peoples R China

A series of experiments have been designed to investigate the effect of different space positions between liquid Ag-Cu-Sn alloy drop and iron substrates on the liquid/solid inter-facial morphologies by a sessile drop method. The results show that Ag-Cu-Sn alloy diffuses into the solid iron substrate, and the amounts are greater and the distances are longer when it dif-

关键词： liquid/solid interface diffusion α-Fe dendrite.

Effect of Grain Boundary on the Wettability and Interfacial Morphology in the Molten Bi/Cu System

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Journal of Materials Science & Technology 2003年第3期19卷 206-208页

作者： Qiangang XU, Haifeng ZHANG, bingzhe ding Zhuangqi HUShenyang National Lab. for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China Lab. for Mat. Sci. Inst. of Metal Res. Chinese Acad. of Sci. Shenyang 110016 China

The wetting behavior of molten Bi on polycrystalline Cu substrate and single crystal Cu substrate was studied by the sessile drop method in the temperature range from 673 to 873 K. At low temperature the wetting behaviors of molten Bi on both types of Cu substrate were similar. However, at high temperature, the equilibrium contact angle of polycrystalline Cu substrate was lower than that of single crystal Cu substrate, because the preferred dissolution of grain boundaries leads to a smaller liquid/solid interfacial energy for polycrystalline Cu substrate. The formation mechanism of arrow-shaped Cu grains at the Bi/single crystal Cu interface is also discussed.

关键词： Wettability Dissolution Grain boundary Interface

Effect of Pd on GFA and Thermal Stability of Zr-based Bulk Amorphous Alloy

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Journal of Materials Science & Technology 2004年第2期20卷 160-163页

作者： Fengxiang QIN, Haifeng ZHANG, Aimin WANG, bingzhe ding and Zhuangqi HUShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China Lab. for Mat. Sci. Inst. of Metal Res. Chinese Acad. of Sci. Shenyang 110016 China

The effect of Pd addition on the glass-forming ability and thermal stability of the Zr55Al10Cu30Ni5-xPdx (x=0, 1, 3, 5 at. pct) alloys upon copper-mold casting has been investigated. The structure, thermal stability and microstructure were studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and transmission electron microscopy (TEM), respectively. It was identified that a new bulk amorphous alloy with the larger supercooled liquid region Tx of 100 K is obtained with substituting Ni by 1 at. pct Pd. Furthermore, the origins that thermal stability and GFA change with increasing of Pd have also beer discussed.

关键词： Bulk Amorphous Alloy Glass-forming Ability Thermal stability

Nucleation in Metallic Melt on the Ground and under Elevated Gravity

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Journal of Materials Science & Technology 1994年第4期10卷 307-309页

作者： Kuiying CHEN Zhuangqi HU and bingzhe ding (State Key Lab of RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110015, China)(To whom correspondence should be addressed) Inst of Metal Research Chinese Acad of Sciences Shenyang China

The expressions for nucleation rate in metallic melt on the ground and under elevated gravity have been derived theoretically and the effects of gravity and elevated gravity on nucleation rate have been discussed. A comparison of nucleation rate under microgravity with those on the ground and under elevated gravity has also been made

关键词： exp Nucleation in Metallic Melt on the Ground and under Elevated Gravity

Segregation of Liquid Phase in the Extruded Semisolid Metal

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Journal of Materials Science & Technology 2003年第3期19卷 209-212页

作者： Zhao YANG,Haifeng ZHANG,Aiming WANG,bingzhe ding Zhuangqi HU Shenyang National Lab.for Materials Science,Institute of Metal Research,Chinese Academy of Sciences, Shenyang 110016,China Lab. for Mat. Sci. Inst. of Metal Res. Chinese Acad. of Sci. Shenyang 110016 China

The influence of stress and strain on the solid/liquid segregation formed in deformed semisolid metal was ***compression experiment at a low constant strain rate was conducted on a Gleeble 1500 thermo-mechanical sireulator.The stress and strain fields of the samples were calculated by finite element *** experiment results and themodeling results prove that the hydrostatic pressure gradient is the driving force for solid/liquid ***segregated liquid phase usually agglomerates in the micropores and shear bands are created by sliding of equiaxeddendrite *** sliding among the grains is influenced by the solid fraction and grain size of the semisolid slurry,so as the solid fraction and grain size change,the morphology of the segregated liquid changes.

关键词： Semisolid metal Solid/liquid segregation Hydrostatic pressure Sliding of grains

TEM Investigations of Thermal Stability of Nanocrystalline Co_(81)Cr_(19)

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Journal of Materials Science & Technology 1994年第2期10卷 139-142页

作者： Jingtang WANG bingzhe ding Huayu TONG and Qihong SONG (State Key Lab of RSA, Institute of Metal Research, Academia Sinica, Shenyang, 110015, China)(To whom correspondence should be addressed) Acad Sinica Shenyang China

In situ transrnission electron microscopic observations were carried out to study the thermal stability of nanocrystalline Co81 Cr19 (n-Co81 Cr19) alloy prepared by d.c. sputtering, The TEM results show that the originally existed nanocrystalline phase hcp-CoCr is thermally stable, no apparent grain growth was observed until annealing to the final stage at.800℃. But the evolution of .microstructure of amorphous oxide Co2Cro4. which is formed duting in situ annealing. is drastically affected by the electron irradiation. In the electron irradiated area. the newly formed amorphous oxide Co2CrO4crystallizes at about 550℃. and grows into fine crystals finally. However, in the electron nonirradiated area, the amorphous oxide Co2CrO4 crystallizes at about 630℃. and grows into large strip shaped crystals during afterward annealing. the space between strip shaped crystals are also fine grained hcp-CoCr alloy. XRD analysis result of the thick film Co81 Cr19 is in good agreement with that of in situ TEM for the excellent stability of hcp-CoCr

关键词： Cr Co

EFFECT OF PREPARATION CONDITION ON THERMAL EXPANSION ANISOTROPY FOR AMORPHOUS Fe_(78)B_(13)Si_9 ALLOY

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Acta Metallurgica Sinica(English Letters) 1989年第12期2卷 392-396页

作者： LU Jian WANG Jingtang ding bingzhe Institute of Metal Research,Academia Sinica,Shenyang,China

The thermal expansion along the longitudinal and transverse directions for amorphous Fe_(78)B_(13)Si_9 alloy prepared under various preparing conditions were *** thermal expansion anisotropy appears in all *** expansion along the longitudinal direction is less than that along the transverse *** cooling rate,the melt temperature before jet casting and the cycling temperature affect the thermal expansion coefficients and *** amisotropy of thermal expansion originates from the orientation of atomic interaction force,the atomic oscillatory frequency and short range order structure or the directional arrangement of defects in the alloy.

关键词： amorphous Fe_(78)B_(13)Si_9 alloy thermal expansion anisotropy

MAGNETIC PROPERTIES AND CRYSTALLIZATION BEHAVIOR OF AN AMORPHOUS（Fe＿（1－x）Mo＿x）＿（79）Si＿9B＿（13）ALLOY

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中国有色金属学会会刊：英文版 1994年第2期4卷 10-13页

作者： Liu,Xuedong ding,bingzhe Wang,Jingtang(Instdute of Metol Research,Academia Sinica, Shenyang 110015)

ＭＡＧＮＥＴＩＣＰＲＯＰＥＲＴＩＥＳＡＮＤＣＲＹＳＴＡＬＬＩＺＡＴＩＯＮＢＥＨＡＶＩＯＲＯＦＡＮＡＭＯＲＰＨＯＵＳ（Ｆｅ＿（１－ｘ）Ｍｏ＿ｘ）＿（７９）Ｓｉ＿９Ｂ＿（１３）ＡＬＬＯＹＭＡＧＮＥＴＩＣＰＲＯＰＥＲＴＩＥ... 详细信息

ＭＡＧＮＥＴＩＣＰＲＯＰＥＲＴＩＥＳＡＮＤＣＲＹＳＴＡＬＬＩＺＡＴＩＯＮＢＥＨＡＶＩＯＲＯＦＡＮＡＭＯＲＰＨＯＵＳ（Ｆｅ＿（１－ｘ）Ｍｏ＿ｘ）＿（７９）Ｓｉ＿９Ｂ＿（１３）ＡＬＬＯＹＭＡＧＮＥＴＩＣＰＲＯＰＥＲＴＩＥＳＡＮＤＣＲＹＳＴＡＬＬＩＺＡＴＩ...

关键词： e:amorphous (Fe0.99 Mo0.01) 78Si9B13 alloy intrinsic magnetic property crystalliza-tion

DIFFUSIVITY OF Al IN AMORPHOUS ALLOY Fe_(78)Si_9B_(13)

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Acta Metallurgica Sinica(English Letters) 1992年第10期5卷 255-258页

作者： JIANG Honggang ding bingzhe WANG Jingtang Institute of Metal Research,Academia Sinica,Shenyang,China

Ion beam sputtering profiling in combination with SIMS technique was employed to investigate the Al diffusion in Fe_(78)Si_0B_(13)amorphous *** 320 and 380℃,the diffusion coefficients vary from 2.43×10^(-22) to 2.01... 详细信息

关键词： amorphous alloy atomic diffusion SIMS Fe_(78)Si_9B_(13) diffusivity