Development of a Master Sintering Curve for Al-Mg Alloy
A new master sintering curve (MSC) is proposed for Al-Mg alloy in order to effectively design the pressure-assisted sintering process. In this work, hot pressing experiments of Al-Mg alloy powders are performed. The changes of relative density during hot pressing are measured for the various heating...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/5607386 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561098259169280 |
|---|---|
| author | Yong-Shin Lee Sang-Jun Lee Sangmok Lee Eung-Zu Kim Duck Jae Yoon |
| author_facet | Yong-Shin Lee Sang-Jun Lee Sangmok Lee Eung-Zu Kim Duck Jae Yoon |
| author_sort | Yong-Shin Lee |
| collection | DOAJ |
| description | A new master sintering curve (MSC) is proposed for Al-Mg alloy in order to effectively design the pressure-assisted sintering process. In this work, hot pressing experiments of Al-Mg alloy powders are performed. The changes of relative density during hot pressing are measured for the various heating rates of 5°C/min, 10°C/min, and 20°C/min at the fixed pressure of 50 MPa. A work of sintering, designated as Θ, is introduced and defined as Θ(t,T)=∫0t1/Texp-Q/RTdt. A work of sintering, Θ, could be interpreted as a measure for the amount of sintering work. The MSC in this work defines the relation between the apparent density and a work of sintering, Θ. Since the measurement of an apparent activation energy, Q, is very difficult, the correct value of Q is obtained numerically using a mean residual square method. Then, the master sintering curves for sintering of Al-Mg alloy powders are proposed for the sintering temperatures of 400°C and 500°C through scaling procedures. It is expected that the master sintering curves proposed in this work could help an engineer to design pressure-assisted sintering process for Al-Mg alloy. |
| format | Article |
| id | doaj-art-80c826d35e984b86aa34498501f45e49 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-80c826d35e984b86aa34498501f45e492025-02-03T01:25:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/56073865607386Development of a Master Sintering Curve for Al-Mg AlloyYong-Shin Lee0Sang-Jun Lee1Sangmok Lee2Eung-Zu Kim3Duck Jae Yoon4School of Mechanical Engineering, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707, Republic of KoreaPatent Information Promotion Center, 48 Munjeong-ro, 48-Beon-gil, Seo-gu, Daejeon 35262, Republic of KoreaMetal Forming R&D Group, Korea Institute of Industrial Technology, Incheon 21999, Republic of KoreaMetal Forming R&D Group, Korea Institute of Industrial Technology, Incheon 21999, Republic of KoreaMetal Forming R&D Group, Korea Institute of Industrial Technology, Incheon 21999, Republic of KoreaA new master sintering curve (MSC) is proposed for Al-Mg alloy in order to effectively design the pressure-assisted sintering process. In this work, hot pressing experiments of Al-Mg alloy powders are performed. The changes of relative density during hot pressing are measured for the various heating rates of 5°C/min, 10°C/min, and 20°C/min at the fixed pressure of 50 MPa. A work of sintering, designated as Θ, is introduced and defined as Θ(t,T)=∫0t1/Texp-Q/RTdt. A work of sintering, Θ, could be interpreted as a measure for the amount of sintering work. The MSC in this work defines the relation between the apparent density and a work of sintering, Θ. Since the measurement of an apparent activation energy, Q, is very difficult, the correct value of Q is obtained numerically using a mean residual square method. Then, the master sintering curves for sintering of Al-Mg alloy powders are proposed for the sintering temperatures of 400°C and 500°C through scaling procedures. It is expected that the master sintering curves proposed in this work could help an engineer to design pressure-assisted sintering process for Al-Mg alloy.http://dx.doi.org/10.1155/2016/5607386 |
| spellingShingle | Yong-Shin Lee Sang-Jun Lee Sangmok Lee Eung-Zu Kim Duck Jae Yoon Development of a Master Sintering Curve for Al-Mg Alloy Advances in Materials Science and Engineering |
| title | Development of a Master Sintering Curve for Al-Mg Alloy |
| title_full | Development of a Master Sintering Curve for Al-Mg Alloy |
| title_fullStr | Development of a Master Sintering Curve for Al-Mg Alloy |
| title_full_unstemmed | Development of a Master Sintering Curve for Al-Mg Alloy |
| title_short | Development of a Master Sintering Curve for Al-Mg Alloy |
| title_sort | development of a master sintering curve for al mg alloy |
| url | http://dx.doi.org/10.1155/2016/5607386 |
| work_keys_str_mv | AT yongshinlee developmentofamastersinteringcurveforalmgalloy AT sangjunlee developmentofamastersinteringcurveforalmgalloy AT sangmoklee developmentofamastersinteringcurveforalmgalloy AT eungzukim developmentofamastersinteringcurveforalmgalloy AT duckjaeyoon developmentofamastersinteringcurveforalmgalloy |