Grain refinement of az31 magnesium alloy by cerium addition and thermomechanical treatments / (Record no. 56368)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03154cam a2200349 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223031505.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 160510s2015 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.13.12.M.Sc.2015.Mo.G |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Hafez Abdellraheem Qassem |
| 245 10 - TITLE STATEMENT | |
| Title | Grain refinement of az31 magnesium alloy by cerium addition and thermomechanical treatments / |
| Statement of responsibility, etc. | Mohamed Hafez Abdelraheem Qassem ; Supervised Abdelhamid Ahmed Hussein , Salah Saeed Ezz , Alzahraa Mohamed Yahia Elbaradie |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | عن طريق إضافة عنصر السيريوم و المعالجات الحرارية الميكانيكية AZ31تدقيق حبيبات سبيكة الماغنسيوم |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Mohamed Hafez Abdelraheem Qassem , |
| Date of publication, distribution, etc. | 2015 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 93 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 30cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Metallurgical Engineering |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | This thesis focuses on the microstructure evolution during different techniques of grain refinement through melt treatment, conventional and advanced thermomechanical treatment (stir friction processing). Two AZ31 alloys with and without Ce-mishmetal addition were cast under Ar/CO protective atmosphere at 750oC, then homogenized at 460oC for two hours. After that they 2 subjected to conventional thermomechanical treatement (hot forging followed by annealing). Firstly, hot forging operated at 350oC to 30% reduction, then, water quenching. Finally, the forged alloys were annealed at 250oC for 16 minutes. Part of commercial AZ31 was conducted to stir friction process (FSP) as a new thermomechanical treatment technique. Friction stir processing was conducted at rotational speed (885 rpm) and transverse speed (62.5 mm/min). On the other hand, finest structure is observed in AZ31-1%Ce (5æm) as a result of conventional thermomechanical treatment and its microstructure is characterized by incomplete fragmentation of Al Ce precipitates. While, the grain size obtained after friction stir processing is 8æm with few fine 4 precipitates within grains. The results of hardness indicates that the maximum hardness is obtained in both stir friction processed AZ31 (75 HV) and conventionally thermomechanical treated AZ31- 1%Ce (82 HV). At the same time, the maximum yield and ultimate tensile strengths are obtained in both stir friction processed AZ31 (160MPa and 260MPa, respectively) and thermomechanical treated AZ31-1%Ce (179 MPa and 255MPa, respectively). Also, higher elongation is recognized in AZ31 (16%) stir friction processed and AZ31-1%Ce (14%) thermomechanical treated |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | AZ31 |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Forging |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Stir friction |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Abdelhamid Ahmed Hussein , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Alzahraa Mohamed Yahia Elbaradie , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Salah Saeed Ezz , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Aml |
| Reviser | Cataloger |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.13.12.M.Sc.2015.Mo.G | 01010110068807000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.13.12.M.Sc.2015.Mo.G | 01020110068807000 | 22.09.2023 | CD - Rom | 68807.CD |