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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.3
- 수록면
- 39 - 45 (7page)
- DOI
- 10.14815/kjdm.2014.41.1.39
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초록· 키워드
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The age-hardening mechanism of a copper-free silver-palladium alloy is unclear yet because the age-hardening mechanism is variable even with slight compositional changes. The aim of present study is to elucidate the age-hardening mechanism and relation of age-hardenability with the phase transformation and microstructural changes of a Zn- and In-added Ag-Pd alloy by means of the hardness test, X-ray diffraction study, field emission-scanning electron microscopic observation and energy dispersive spectrometer analysis. The matrix was composed of the Ag-rich α1 phase containing small amounts of solute elements, and the particle-like structures were composed of the PdZn-based β1 phase containing relatively large amounts of In. The lamellar-forming grain boundary reaction which is usually observed in Ag-Pd alloys containing Cu was not observed in the Zn- and In-added Ag-Pd alloy. The grain interior precipitate composed of the Pd-Zn-rich phase containing In resulted in apparent hardening from the early stage of aging process, and its coarsening by prolonged aging resulted in softening. In the specimen alloy, Zn and In formed extra phase preferentially with Pd, and the amount of Zn and In which took part in the precipitation hardening was very small.
목차
ABSTRACT
1. INTRODUCTION
2. Materials and method
3. Results and discussion
4. Conclusions
References
참고문헌 (18)
참고문헌 신청
1. [단행본] - Cullity BD / 1978 / Elements of X-ray diffraction / Addison-Wesley publishing Co. Inc : 506 ~ 507
2. [학술지(정기간행물)] - Hisatsune K / 1991 / Age-hardening characteristics in an AuCu-14at.% Ag alloy / J Alloys Compd 176 : 269 ~ 283
3. [학술지(정기간행물)] - Kanazawa Y / 1963 / Study on the Ag-Pd alloy / J Jpn Soc Dent Appar Mater 4 : 157 ~ 160
4. [학술지(정기간행물)] - Kawashima I / 1991 / Retardation of grain boundary reactions in Ag-Pd-Cu alloys by additions of small amounts of other elements / J Mater Sci 26 : 1113 ~ 1118
5. [학술지(정기간행물)] - Kim HI / 1999 / Age-hardening associated with grain boundary precipitation in a commercial dental gold alloy / J Oral Rehabil 26 : 215 ~ 222
2. [학술지(정기간행물)] - Hisatsune K / 1991 / Age-hardening characteristics in an AuCu-14at.% Ag alloy / J Alloys Compd 176 : 269 ~ 283
3. [학술지(정기간행물)] - Kanazawa Y / 1963 / Study on the Ag-Pd alloy / J Jpn Soc Dent Appar Mater 4 : 157 ~ 160
4. [학술지(정기간행물)] - Kawashima I / 1991 / Retardation of grain boundary reactions in Ag-Pd-Cu alloys by additions of small amounts of other elements / J Mater Sci 26 : 1113 ~ 1118
5. [학술지(정기간행물)] - Kim HI / 1999 / Age-hardening associated with grain boundary precipitation in a commercial dental gold alloy / J Oral Rehabil 26 : 215 ~ 222
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UCI(KEPA) : I410-ECN-0101-2015-510-001314067