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Deformation Mechanism of Severely Deformation CP-Titanium by Uniaxial Compression Test

Title
Deformation Mechanism of Severely Deformation CP-Titanium by Uniaxial Compression Test
Author
김종렬
Keywords
compression test; analysis; transmission electron microscopy; severe plastic deformation; commercial pure (CP) titanium; twin
Issue Date
2007-12
Publisher
JAPAN INST METALS
Citation
MATERIALS TRANSACTIONS, v. 49, No. 1, Page. 38-40
Abstract
Conventional uniaxial compression test, designed to yield an effective strain of similar to 1, was carried out to understand the deformation mechanism of severely deformed commercial pure titanium at various temperatures. TEM analysis showed that only [10 (1) over bar1] twins accompanied with (a) slip dislocations were activated on non-basal planes in samples compressed at 573 and 623 K. In particular, the whole area of the sample compressed at 623 K were covered with [10 (1) over bar1] twin bands with a width of 200 nm. However, (a + c) slip instead of [10 (1) over bar1] twinning were found in samples compressed at 673 and 823 K. This indicates that [10 (1) over bar1] twinning plays an important role in accommodating severe plastic strain before the activation temperature of (a + c) slip.
URI
https://www.jstage.jst.go.jp/article/matertrans/49/1/49_ME200723/_article/-char/ja/http://repository.hanyang.ac.kr/handle/20.500.11754/107512
ISSN
1345-9678
DOI
10.2320/matertrans.ME200723
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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