Evolution and interaction of twins, dislocations and stacking faults in rolled α-brass during nanostructuring at sub-zero temperature
The effect of cryorolling (CR) strain at 153 K on the evolution of structural defects and their interaction in α−brass (Cu–30 wt.% Zn) during nanostructuring has been evaluated. Even though the lattice strain increases up to 2.1 × 10−3 at CR strain of 0.6 initially, but it remains constant upon furt...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2014-06-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4881376 |
| _version_ | 1811276866425716736 |
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| author | Barna Roy Nand Kishor Kumar Padinharu Madathil Gopalakrishnan Nambissan Jayanta Das |
| author_facet | Barna Roy Nand Kishor Kumar Padinharu Madathil Gopalakrishnan Nambissan Jayanta Das |
| author_sort | Barna Roy |
| collection | DOAJ |
| description | The effect of cryorolling (CR) strain at 153 K on the evolution of structural defects and their interaction in α−brass (Cu–30 wt.% Zn) during nanostructuring has been evaluated. Even though the lattice strain increases up to 2.1 × 10−3 at CR strain of 0.6 initially, but it remains constant upon further rolling. Whereas, the twin density (β) increases to a maximum value of 5.9 × 10−3 at a CR strain of 0.7 and reduces to 1.1 × 10−5 at 0.95. Accumulation of stacking faults (SFs) and lattice disorder at the twin boundaries causes dynamic recrystallization, promotes grain refinement and decreases the twin density by forming subgrains. Detailed investigations on the formation and interaction of defects have been done through resistivity, positron lifetime and Doppler broadening measurements in order to understand the micro-mechanism of nanostructuring at sub-zero temperatures. |
| first_indexed | 2024-04-13T00:05:29Z |
| format | Article |
| id | doaj.art-1f305979a133467ab3405659879cb36c |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-13T00:05:29Z |
| publishDate | 2014-06-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-1f305979a133467ab3405659879cb36c2022-12-22T03:11:14ZengAIP Publishing LLCAIP Advances2158-32262014-06-0146067101067101-810.1063/1.4881376036405ADVEvolution and interaction of twins, dislocations and stacking faults in rolled α-brass during nanostructuring at sub-zero temperatureBarna Roy0Nand Kishor Kumar1Padinharu Madathil Gopalakrishnan Nambissan2Jayanta Das3Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, IndiaDepartment of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, IndiaApplied Nuclear Physics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, IndiaDepartment of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, IndiaThe effect of cryorolling (CR) strain at 153 K on the evolution of structural defects and their interaction in α−brass (Cu–30 wt.% Zn) during nanostructuring has been evaluated. Even though the lattice strain increases up to 2.1 × 10−3 at CR strain of 0.6 initially, but it remains constant upon further rolling. Whereas, the twin density (β) increases to a maximum value of 5.9 × 10−3 at a CR strain of 0.7 and reduces to 1.1 × 10−5 at 0.95. Accumulation of stacking faults (SFs) and lattice disorder at the twin boundaries causes dynamic recrystallization, promotes grain refinement and decreases the twin density by forming subgrains. Detailed investigations on the formation and interaction of defects have been done through resistivity, positron lifetime and Doppler broadening measurements in order to understand the micro-mechanism of nanostructuring at sub-zero temperatures.http://dx.doi.org/10.1063/1.4881376 |
| spellingShingle | Barna Roy Nand Kishor Kumar Padinharu Madathil Gopalakrishnan Nambissan Jayanta Das Evolution and interaction of twins, dislocations and stacking faults in rolled α-brass during nanostructuring at sub-zero temperature AIP Advances |
| title | Evolution and interaction of twins, dislocations and stacking faults in rolled α-brass during nanostructuring at sub-zero temperature |
| title_full | Evolution and interaction of twins, dislocations and stacking faults in rolled α-brass during nanostructuring at sub-zero temperature |
| title_fullStr | Evolution and interaction of twins, dislocations and stacking faults in rolled α-brass during nanostructuring at sub-zero temperature |
| title_full_unstemmed | Evolution and interaction of twins, dislocations and stacking faults in rolled α-brass during nanostructuring at sub-zero temperature |
| title_short | Evolution and interaction of twins, dislocations and stacking faults in rolled α-brass during nanostructuring at sub-zero temperature |
| title_sort | evolution and interaction of twins dislocations and stacking faults in rolled α brass during nanostructuring at sub zero temperature |
| url | http://dx.doi.org/10.1063/1.4881376 |
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