High temperature fatigue characteristics of P/M and hot-forged W-Re and TZM for X-ray target of CT scanner
The fatigue strengths at 1000 °C of layered W-Re/TZM, bulk W-Re and bulk TZM for x-ray target materials were successfully evaluated under load-controlled four-point bending by introducing a fatigue failure criterion as twotimes increase of initial compliance. The obtained fatigue strengths at 1000 °...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
ScienceDirect
2018
|
| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/4621/1/AJ%202018%20%28109%29.pdf |
| _version_ | 1796869054502273024 |
|---|---|
| author | Harimon, Mohd Azhar Miyashita, Yukio Otsuka, Yuichi Mutoh, Yoshiharu Yamamoto, Shinichi |
| author_facet | Harimon, Mohd Azhar Miyashita, Yukio Otsuka, Yuichi Mutoh, Yoshiharu Yamamoto, Shinichi |
| author_sort | Harimon, Mohd Azhar |
| collection | UTHM |
| description | The fatigue strengths at 1000 °C of layered W-Re/TZM, bulk W-Re and bulk TZM for x-ray target materials were successfully evaluated under load-controlled four-point bending by introducing a fatigue failure criterion as twotimes increase of initial compliance. The obtained fatigue strengths at 1000 °C for layered W-Re/TZM and bulk WRe were similar and 280 MPa and 290 MPa at 106 cycles, respectively, while that of bulk TZM was 200 MPa. During fatigue loading at 1000 °C, dominant fatigue damage would be multiple intergranular crack nucleation and propagation, which would induce the increase of compliance. The reasonability of the fatigue failure criterion was confirmed by the fatigue process observations and the results of room temperature fatigue tests of the specimens tested at 1000 °C up to the cycles corresponding to the fatigue failure criterion. |
| first_indexed | 2024-03-05T21:49:05Z |
| format | Article |
| id | uthm.eprints-4621 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English |
| last_indexed | 2024-03-05T21:49:05Z |
| publishDate | 2018 |
| publisher | ScienceDirect |
| record_format | dspace |
| spelling | uthm.eprints-46212021-12-07T09:08:40Z http://eprints.uthm.edu.my/4621/ High temperature fatigue characteristics of P/M and hot-forged W-Re and TZM for X-ray target of CT scanner Harimon, Mohd Azhar Miyashita, Yukio Otsuka, Yuichi Mutoh, Yoshiharu Yamamoto, Shinichi T Technology (General) TA401-492 Materials of engineering and construction. Mechanics of materials The fatigue strengths at 1000 °C of layered W-Re/TZM, bulk W-Re and bulk TZM for x-ray target materials were successfully evaluated under load-controlled four-point bending by introducing a fatigue failure criterion as twotimes increase of initial compliance. The obtained fatigue strengths at 1000 °C for layered W-Re/TZM and bulk WRe were similar and 280 MPa and 290 MPa at 106 cycles, respectively, while that of bulk TZM was 200 MPa. During fatigue loading at 1000 °C, dominant fatigue damage would be multiple intergranular crack nucleation and propagation, which would induce the increase of compliance. The reasonability of the fatigue failure criterion was confirmed by the fatigue process observations and the results of room temperature fatigue tests of the specimens tested at 1000 °C up to the cycles corresponding to the fatigue failure criterion. ScienceDirect 2018 Article PeerReviewed text en http://eprints.uthm.edu.my/4621/1/AJ%202018%20%28109%29.pdf Harimon, Mohd Azhar and Miyashita, Yukio and Otsuka, Yuichi and Mutoh, Yoshiharu and Yamamoto, Shinichi (2018) High temperature fatigue characteristics of P/M and hot-forged W-Re and TZM for X-ray target of CT scanner. Materials & Design, 137. pp. 335-344. ISSN 0261-3069 https://doi.org/10.1016/j.matdes.2017.10.044 |
| spellingShingle | T Technology (General) TA401-492 Materials of engineering and construction. Mechanics of materials Harimon, Mohd Azhar Miyashita, Yukio Otsuka, Yuichi Mutoh, Yoshiharu Yamamoto, Shinichi High temperature fatigue characteristics of P/M and hot-forged W-Re and TZM for X-ray target of CT scanner |
| title | High temperature fatigue characteristics of P/M and hot-forged W-Re and TZM for X-ray target of CT scanner |
| title_full | High temperature fatigue characteristics of P/M and hot-forged W-Re and TZM for X-ray target of CT scanner |
| title_fullStr | High temperature fatigue characteristics of P/M and hot-forged W-Re and TZM for X-ray target of CT scanner |
| title_full_unstemmed | High temperature fatigue characteristics of P/M and hot-forged W-Re and TZM for X-ray target of CT scanner |
| title_short | High temperature fatigue characteristics of P/M and hot-forged W-Re and TZM for X-ray target of CT scanner |
| title_sort | high temperature fatigue characteristics of p m and hot forged w re and tzm for x ray target of ct scanner |
| topic | T Technology (General) TA401-492 Materials of engineering and construction. Mechanics of materials |
| url | http://eprints.uthm.edu.my/4621/1/AJ%202018%20%28109%29.pdf |
| work_keys_str_mv | AT harimonmohdazhar hightemperaturefatiguecharacteristicsofpmandhotforgedwreandtzmforxraytargetofctscanner AT miyashitayukio hightemperaturefatiguecharacteristicsofpmandhotforgedwreandtzmforxraytargetofctscanner AT otsukayuichi hightemperaturefatiguecharacteristicsofpmandhotforgedwreandtzmforxraytargetofctscanner AT mutohyoshiharu hightemperaturefatiguecharacteristicsofpmandhotforgedwreandtzmforxraytargetofctscanner AT yamamotoshinichi hightemperaturefatiguecharacteristicsofpmandhotforgedwreandtzmforxraytargetofctscanner |