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NSYSU

1. Tang, Chen-wei. Mechanical Properties and Micro-Forming Ability of Au-Based Bulk Metallic Glasses.

Degree: Master, Materials Science and Engineering, 2008, NSYSU

The mechanical properties and micro-forming of the Au-based bulk metallic glasses are reported in this thesis. The original ingots were prepared by arc melting and induction melting. The Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glasses with different diameters 2 and 3 mm were successfully fabricated by conventional copper mold casting in an inert atmosphere. By the observation of transmission electron microscopy diffraction pattern, there are crystalline phases among the amorphous matrix phase. The Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass shows the high glass forming ability and good thermal stability. By the Differential scanning calorimetry (DSC) results, the values ofÎΤx and ÎΤm are 50 and 21 K. And Trg, γ, and γm values for the Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass (BMG) at the heating rate of 0.67 K/s are 0.619, 0.430 and 0.774, respectively. The mechanical properties of Au49Ag5.5Pd2.3Cu26.9Si16.3 in terms of compression testing are examined using an Instron 5582 universal testing machine. Room temperature compression tests are conducted on specimens with various strain rates. To know the size effect, the micro-pillars were made by using a focus ion beam (FIB) technique. The micro-pillars were under the tests of compression at different strain rates, compared with macro-scale 2 mm rod specimens. In contrast to the brittle fracture in a bulk sample, these micro-pillar specimens show significant plasticity. The morphology of compressed pillar samples indicates that the number of shear bands increased with the sample size and strain rates. Advisors/Committee Members: Shian-ching Jang (chair), Chih-Ching Huang (committee member), Cheng-tang Pan (chair).

Subjects/Keywords: Au-based BMG; amorphous; mechanical properties

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Tang, C. (2008). Mechanical Properties and Micro-Forming Ability of Au-Based Bulk Metallic Glasses. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0710108-154048

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Tang, Chen-wei. “Mechanical Properties and Micro-Forming Ability of Au-Based Bulk Metallic Glasses.” 2008. Thesis, NSYSU. Accessed April 22, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0710108-154048.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Tang, Chen-wei. “Mechanical Properties and Micro-Forming Ability of Au-Based Bulk Metallic Glasses.” 2008. Web. 22 Apr 2019.

Vancouver:

Tang C. Mechanical Properties and Micro-Forming Ability of Au-Based Bulk Metallic Glasses. [Internet] [Thesis]. NSYSU; 2008. [cited 2019 Apr 22]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0710108-154048.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tang C. Mechanical Properties and Micro-Forming Ability of Au-Based Bulk Metallic Glasses. [Thesis]. NSYSU; 2008. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0710108-154048

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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