ISSN: 1002-0071    Imprint: Chinese Materials Research Society
Volume listings
  • Current volume
  •  
  • Journal archive
Related Links
Mengqi Zhang,Jinshan Li,Bin Tang,Hongchao Kou,Jiangkun Fan.[J].自然科学进展英文版,2018,28(6):718-723
Mechanical characterization and strain-rate sensitivity measurement of Ti-7333 alloy based on nanoindentation and crystal plasticity modeling
  
DOI:
中文关键词:  
英文关键词:Nanoindentation Crystal plasticity Rate sensitivity Pileup
基金项目:
Author NameAffiliation
Mengqi Zhang State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China 
Jinshan Li State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China 
Bin Tang State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China 
Hongchao Kou State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China 
Jiangkun Fan State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China 
Hits: 942
Download times: 1357
中文摘要:
      
英文摘要:
      The relationship between crystal orientations and meso-mechanical properties of β phase Ti-7333 titanium was investigated through the combination of nanoindentation experiments and simulation. The crystal plasticity finite element (CPFE) model for nanoindentation of single body-centered cubic crystal was established based on the experimental data. And the crystal plasticity constitutive law was implemented to simulate the nanoindentation process, obtaining satisfied results with an acceptable error. From the simulated pileup morphology patterns with different crystal orientations, it was found that the β phase experienced a symmetrical and orientation-related deformation process. Meanwhile, the strain-rate sensitivity (SRS) of β phase was investigated through nanoindentation tests based on continuous stiffness measurement (CSM) under different strain rates, varying between 0.2, 0.05 and 0.01 s?1. Two grains with different orientations exhibited similar SRS exponents, m, calculated from the experimental results.
View Full Text  View/Add Comment  Download reader