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Multiscale analysis on the wear process of cemented carbide tools during titanium alloy machining: 《Friction》2025年第3期127-139,共13页Wenmeng Zhou Pingfa Feng Wen Ji Zhongyu Wang Yuan Ma Enlai Jiang Huiting Zha Zhipeng Cai Feng Feng; supported by the National Natural Science Foundation of China(No.52275441);the Shenzhen Science and Technology Program(No.KJZD20230923114606013).; Cemented carbide tools are widely utilized in titanium alloy machining.However,severe tool wear usually occurs during machining;thus,the wear process has attracted widespread attention.Electromagnetic treatment was ap...; 关键词：tool wear multiscale analysis fractal dimension MICRODEFECTS electromagnetic treatment

Numerical simulation of laser ultrasonic detection of the surface microdefects on laser powder bed fusion additive manufactured 316L stainless steel被引量：1: 《Theoretical & Applied Mechanics Letters》2022年第6期451-458,共8页Yang Liu Zhixin Peng Sheng Liu Ping Hu; supported by the National Key Research and Development Program of China(No.2017YFB1103900);the National Natural Science Foundation of China(No.51605340)。; A numerical model is presented in this article to investigate the interactions between laser generated ultrasonic and the microdefects(0.01 to 0.1 mm),which are on the surface of the laser powder bed fusion additive m...; 关键词：Laser ultrasonic Numerical simulation Metal additive manufacturing Surface defects

A New Method for Research of Grown-In Microdefects in Dislocation-Free Silicon Single Crystals: 《Journal of Crystallization Process and Technology》2011年第2期13-17,共5页V.I Talanin I.E Talanin N.Ph Ustimenko; As a virtual experimental device for analysis and calculation of grown-in microdefects formation in undoped silicon dislocation-free single crystals the software is proposed. The software is built on the basis on diff...; 关键词：SILICON Grown-In MICRODEFECTS PRECIPITATE VACANCY Microvoid INTERSTITIAL Dislocation Loop

Microdefects and electron densities in NiTi shape memory alloys studied by positron annihilation: 《Transactions of Nonferrous Metals Society of China》2006年第6期1259-1262,共4页胡益丰邓文郝文博岳丽黄乐黄宇阳熊良钺; Project(50361002) supported by the National Natural Science Foundations of China;Project(0448006) supported by the Natural Science Foundation of Guangxi Province,China; The microdefects and free electron densities in B2,R and B19’ phases of Ni50.78Ti49.22 alloy were studied by positron lifetime measurements.Comparing the lifetime parameters of the Ni50.78Ti49.22 alloy measured at 29...; 关键词：NITI alloy microdefect ELECTRON density MARTENSITE transformation

Influence of chemical composition and alloying elements on microdefects and electron density in Ni-Al alloys被引量：4: 《中国有色金属学会会刊：英文版》2002年第3期370-374,共5页邓文黄宇阳吴道宏熊良钺王淑荷郭建亭; Project (5 98810 0 3 )supportedbytheNationalNaturalScienceFoundationofChinaandtheScienceandTechnologyFoundationofGuangxiPersonnelDepartment; Positron lifetime spectra have been measured in binary Ni Al alloys with different chemical composition and NiAl alloys doped with Cr, Zr, Fe and Mg. The results indicate that in B2 NiAl and Ll 2 Ni 3Al alloys, some o...; 关键词：NIAL合金化学成分合金元素电子密度微观缺陷

Necessary conditions of internal necking between microvoids in ductile materials: 《Progress in Natural Science:Materials International》1998年第6期87-93,共7页宁建国黄筑平; Project supported by the National Natural Science Foundation of China (Grant No. 19632030).; Under the action of external loads, the critical condition of fracture in ductile materials is closely related to the strong interactions among internal microdefects at the later stage of deformation. By means of Riem...; 关键词：DUCTILE material MICRODEFECTS INTERNAL NECKING RIEMANN integration.

Influence of Fe on electronic density of defects in NiAl alloys: 《Chinese Science Bulletin》1997年第21期1783-1787,共5页Deng, W Xiong, LY Wang, SH Guo, JT Long, QW; NiAl alloy is considered to be a good candidate material for high performance, high-tempera-ture structural applications since this material offers a wide range of attractive mechanical andphysical properties, such as...; 关键词：NIAL alloy POSITRON LIFETIME MICRODEFECTS electronic density.

Microdefects in Te-Rich PbTe Bulk Crystal: 《Chinese Physics Letters》1995年第8期469-472,共4页WANG Geya SHI Tiansheng ZHANG Suying; The microdefects in Te-rich PbTe coating material grown by Bridgman technique have been studied via transmission electron microscopy.The results indicate that the major microdefects in Te-rich PbTe crystal are plate-l...; 关键词：PBTE originated DEFECTS

Effects of B, Zr and Si on Microdefects in FeAl Alloys: 《Chinese Science Bulletin》1994年第12期993-996,共4页邓文熊良钺郭建亭王淑荷龙期威; Project supported by the National Natural Science Foundation of China.; The long-range ordered intermetallic compounds FeAl alloys with B2 crystalstructure are characterized by superior high-temperature strength, excellent oxidation re-sistance, low density and low cost, so that they are ...; 关键词：FEAL alloys ALLOYING elements MICRODEFECTS density of VALENCE electrons.

THE OPTICAL PROCESSING ON DIRECT OBSERVATION X-RAY TOPOGRAPHS OF MICRODEFECTS IN SILICON SINGLE CRYSTALS: 《Chinese Science Bulletin》1983年第11期1471-1476,共6页郑师海麦振洪; Ⅰ. INTRODUCTION We have discussed the optical processing and the enhancement of electron microscopic images consisting of a periodic structure.The technique described in the previous papers is only available for proc...; 关键词：MICROSCOPIC radius arrangement PHOTOGRAPH TOPOGRAPHY restrain DISADVANTAGE posed filtered inevitable

MICRODEFECTS