[碳化钨金属陶瓷激光熔覆过程中粘结金属与陶瓷相的交互作用]吴新伟

【碳化钨金属陶瓷激光熔覆过程中粘结金属与陶瓷相的交互作用】吴新伟.pdfADissertationSubmittedto Huazhong University of Science and Technology for the Degreeof Doctor of PhilosophyinEngineering The InteractionBetween CeramicPhases and Binder During Laser Cladding of Tungsten Carbide Ceramic-Metal Composite Coating Ph.D.华中理工大学博士学位论文 类、粒度和含量对金属陶瓷激光熔覆层的磨损性能影响与粘结金属类型和成分以 及磨损条件密切相关,激光熔覆工艺对熔覆层的磨损性能影响显著。但熔覆层中,存在的垂直于磨损面的裂纹对熔覆层耐磨粒磨损和干滑动磨损性能没有明显影 响。华中理工大学博士学位论文 ofM23C6and MCorMC3.thirdly,M23C6andMCorMC3migratefarfromthe WC particles; fourthly, these carbides precipitate from the matrix during cooling coursewhen thelaserbeam is moved away.TheabrasivewearprocessofLCCCsisaselectionremovalofthemetal binder Adhesive,fatigueandthree-body abrasive s
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