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Cu_<0.5>Au_<0.5-X>Ni_X系合金の相変態過程と時効硬化挙動
http://hdl.handle.net/10232/349
http://hdl.handle.net/10232/349bbd943f9-39d9-4f54-a22e-fcda191ce3a5
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000165774.pdf (913.3 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||
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| 公開日 | 2015-05-01 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Cu_<0.5>Au_<0.5-X>Ni_X系合金の相変態過程と時効硬化挙動 | |||||||||||||
| 言語 | ja | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Phase Transformation Process and Age-hardening Behavior in Cu_<0.5>Au_<0.5-X>Ni_X Alloys | |||||||||||||
| 言語 | en | |||||||||||||
| 著者 |
藤井, 孝一
× 藤井, 孝一
× 白石, 孝信
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| 言語 | ||||||||||||||
| 言語 | jpn | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Cu_<0.5>Au_<0.5-X>Ni_X Alloy | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | age-hardening | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Overaging | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Hardness test | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Electrical resistivity | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||||
| 要約(Abstract) | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | Ordering and age-hardening behaviors in Cu_<0.5>Au_<0.5-X>Ni_X alloys (in at%, x=0 ～ 11.9) were investigated by means of electrical resistivity measurement, hardness test, X-ray diffraction and transmission electron microscopy. In addition, corrosion in alloys mentioned above was also evaluated. The effects of Ni contents on ordering and age-hardening behaviors were as follows ; 1 ) For each alloy aged for up to 50000min at 300℃, the maximum value of hardness ranged between 275 and 330 Hv and decreased little by little depending on the increase of Ni contents (at %) . And the aging time when softening started increased slightly in order of alloys CA-1. CAN-2 and -3 and also the softening rate was suppressed by degrees. For the alloys CAN-4 and -5,the softening rate at the overaging stage was very slow. 2 ) Upon aging treatment at 300℃, a single phase with the CuAu I-type superstructure was produced in the alloys CA-1,CAN-2 and -3. On the other hand, in the alloys CAN-4 and -5,a mixture of a CuAu I-type ordered phase and a smail amount of nickel-rich α_2 phase with the face-centered cubic structure was produced. From these results, it can be seen that the hardening would be due to the introduction of coherency strain at the interface between the CuAu I nuclei and the surrounding matrix and that a loss of coherency strain at interface occurred by twinning brought about softening of the alloy, I.e., overaging. Potentiodynamic (-500 to 1000mV) and potentiostatic (750mV, 600s) polarization measurements were conducted in l%NaCl solution (37℃) deaerated with N_2 gas bubbling, using a platinum (a counter electrode) and KCI saturated Ag/AgCl (a reference electrode) . For the Cu_<0.5>Au_<0.5-X>Ni_X alloys tested in the present study, it was found that there was little difference in Q values between the disordered and the ordered alloys and that the Q values would be mainly controlled by the dissolution of Cu from the Cu_<0.5>Au_<0.5-X>Ni_X alloys and Ni was little dissolved. | |||||||||||||
| 言語 | en | |||||||||||||
| 収録雑誌名 |
ja : 鹿児島大学歯学部紀要 巻 13, p. 35-45, 発行日 1993-03-25 |
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| 作成日 | ||||||||||||||
| 日付 | 1993-03-25 | |||||||||||||
| 日付タイプ | Issued | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 03897834 | |||||||||||||
| NII書誌ID（雑誌） | ||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AN0035442X | |||||||||||||
| 出版タイプ | ||||||||||||||
| 出版タイプ | VoR | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
| NDC | ||||||||||||||
| 主題Scheme | NDC | |||||||||||||
| 主題 | 497 | |||||||||||||
| NIIsubject | ||||||||||||||
| 言語 | ja | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | 歯学 | |||||||||||||
| 公開者・出版者 | ||||||||||||||
| 出版者 | 鹿児島大学 | |||||||||||||
| 言語 | ja | |||||||||||||
| 公開者・出版者 | ||||||||||||||
| 出版者 | Kagoshima University | |||||||||||||
| 言語 | en | |||||||||||||
