Yuan Yuan Li

Panzhihua University

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i-10 index

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Zhi Yu Xiao

South China University of Technology

Wei Ping Chen

South China University of Technology

Tungwai Leo Ngai

South China University of Technology

Xiaoqiang Li

Sichuan University

Tung Wai Leo Ngai

South China University of Technology

Wei Xia

Northeastern University

Zhao Yao Zhou

South China University of Technology

Zhixin Kang

Sinopec (China)

M. Shao

University of Science and Technology of China

Yan Long

South China University of Technology

Cooperative Institutions

South China University of Technology

Chinese Academy of Sciences

Sun Yat-sen University

National University of Singapore

Huazhong University of Science and Technology

Sichuan University

Peking University

Northwestern Polytechnical University

Sichuan University of Science and Engineering

Jilin University

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High Plastic Ti66Nb13Cu8Ni6.8Al6.2 Composites with In Situ β-Ti Phase Synthesized by Spark Plasma Sintering of Mechanically Alloyed Glassy Powders

Materials science forum (2010)

Yuan Yuan Li Chao Yang Wei Ping Chen Xiaoqiang Li Sheng Qu

High plastic Ti66Nb13Cu8Ni6.8Al6.2 composites with in situ precipitated ductile -Ti phase were firstly synthesized by mechanical alloying and subsequent consolidation by spark plasma sintering with crystallization. Microstructure analysis indicated that all composites contain soft (Cu, Ni)-Ti2 regions and hard -Ti regions, but the two regions have different scale and distribution. The synthesized composites exhibit high fracture strength of 2415 MPa and large plasticity as high as ~31.8%. The large plastic deformability was well explained based on the distinctive microstructure by a developed “hard-soft model”.

Spark Plasma Sintering

Consolidation

10.4028/www.scientific.net/msf.638-642.1642

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Citations (6)

Easy Glass Formation in La- and Pd-Based Alloys by Bridgman Solidification

Journal of Metastable and Nanocrystalline Materials (1999)

Tenghooi Goh Xiao Hu Z.P. Lu Yuan Yuan Li

10.4028/www.scientific.net/jmnm.2-6.247

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Citations (0)

Experimental Researches on Electric Thermal Anti-Icing Performance and Runback Icing

Lecture notes in electrical engineering (2024)

Dongyu Zhu Pei Runan Zhansen Qian Yuan Yuan Li

10.1007/978-981-97-3998-1_55

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Dynamic Heat Capacity of the Pd40Ni10Cu30P20 Amorphous Alloy by Temperature-Modulated Calorimetry

Journal of Metastable and Nanocrystalline Materials (2001)

Xiao Hu Yuan Yuan Li Sze‐Wai Ng Yuan Ping Feng

10.4028/www.scientific.net/jmnm.10.123

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Citations (1)

Degradation Behavior of β-Ca3 (PO4)2/β-Ca2P2O7 Bioceramics

Key engineering materials (2007)

Yuan Yuan Li De An Yang Hong Zhao

Degradation

10.4028/0-87849-410-3.1650

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Structural stability, electronic properties and graphical interatomic interactions of anionic boron clusters doped with one sodium atom

Computational Materials Science (2024)

Jia Hui Gao Yan Fei Hu Yuan Yuan Li Ting Liu Guo Li Chen

10.1016/j.commatsci.2024.112866

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Citations (1)

Direct Joining of Acrylic Rubber to Cast Iron with Functional Nanofilm by Polymer Plating

Key engineering materials (2006)

Zhixin Kang Yuan Yuan Li C.W. Zhong Ming Shao Wei Xia

Plating (geology)

10.4028/0-87849-999-7.491

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Vertical Indirect Squeeze Casting Process of an Al-Cu-Mn Alloy Frame Part

Materials science forum (2009)

Yuan Yuan Li Yong Hu Haidong Zhao Wei Wen Zhang

To decrease weight and increase fuel efficiency, an Al-Cu-Mn alloy frame part with vertical indirect squeeze casting process was fabricated to replace original parts with spheroidal graphite iron, which is used in a special vehicle. Mold filling of the frame with pouring temperature of 700°C and injection velocity of 0.03m/s was simulated. According to the results vents and overflows were designed and the dies were produced with H13 steel. Furthermore, the casting trial producing was conducted. Cross sections of the castings were checked. A number of specimens were obtained from different parts of the castings to evaluate microstructure, and both high dense and fine grain microstructures were found in the specimens. Mechanical properties of the tensile samples with T5 heat treatment were measured, and the average tensile strength and elongation were 387 MPa and 8.8%, respectively.

Elongation

Lead frame

10.4028/www.scientific.net/msf.628-629.605

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Structure and Magnetic Properties of Melt-Spun Nd33(FexAl)67 Alloys

Journal of Metastable and Nanocrystalline Materials (2001)

Lina Si Jeak Ling Ding Yuan Yuan Li X.Z. Wang

10.4028/www.scientific.net/jmnm.10.553

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Investigation on the Densification Mechanism of Warm Compaction

Materials science forum (2007)

Zhi Yu Xiao Tungwai Leo Ngai Yuan Yuan Li

Warm compaction is a low cost process to make high density and high performance iron base powder metallurgy parts. Based on results obtained from the dynamic compacting curve, ejection force curve, X-ray diffraction, micro-hardness of iron powder, friction condition and lubricant properties, densification mechanism of warm compaction can be drawn. In the initial stage, the rearrangement of powder particles is the main factor. It contributes more in the densification of warm compaction than that in cold compaction. However, in the later stage, the plastic deformation of powder particles is the primary factor. The increase in plasticity at high temperature can harmonize the secondary rearrangement of powder particles. During the compaction, the polymer lubricant has great contribution to the densification of the powder, since it improves the lubricating condition and effectively decreases the friction in the forming process and thus enhances the compact density. The dynamic compacting curve of warm compaction can be divided into three phases. The first is the particle rearrangement dominant phase; the percentage of particle rearrangement in warm compaction is higher than that in cold compaction by 15-31%. The second is the elastic deformation and plastic deformation dominant phase. The third is the plastic deformation dominant phase. The study of the powder densification mechanism can direct engineers in designing and producing warm compaction powders for high density parts.

Powder Metallurgy

Iron powder

Particle (ecology)

10.4028/www.scientific.net/msf.539-543.2699

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Citations (1)