Effect of Manganese Content on Burring in 0.2%C-TRIP Sheet Steels with Polygonal Ferrite Matrix
-
- Nagasaka Akihiko
- Department of Mechanical Engineering, National Institute of Technology, Nagano College
-
- Nakazawa Takahiro
- Department of Mechanical Engineering, National Institute of Technology, Nagano College
-
- Hojo Tomohiko
- Iwate University
-
- Moriya Shunsuke
- Advanced courses, National Institute of Technology, Nagano College
-
- Hasebe Shun
- Advanced courses, National Institute of Technology, Nagano College
-
- Matsushima Takuya
- Advanced courses, National Institute of Technology, Nagano College
-
- Kitayama Mitsunari
- Department of Mechanical Engineering, National Institute of Technology, Nagano College
-
- Murakami Toshio
- Kobe Steel, Ltd.
-
- Niu Li-Bin
- Shinshu University
-
- Sugimoto Koh-ichi
- Shinshu University
Bibliographic Information
- Other Title
-
- ポリゴナルフェライトを母相に有する0.2%C-TRIP鋼板のバーリングに及ぼすMn添加量の影響
- ポリゴナルフェライト オ ボソウ ニ ユウスル 0.2%C-TRIP コウバン ノ バーリング ニ オヨボス Mn テンカリョウ ノ エイキョウ
Search this article
Abstract
Effect of manganese content on burring and tapping in 0.2C-1.5Si-(1.0-2.0)Mn (mass%) high strength TRIP-aided sheet steels with polygonal ferrite matrix (TDP steels) was investigated for automotive applications. Burring test was performed on a machining center with rotational speed of 3500 rpm and cutting feed rate of 10 mm/min, using disc specimen of 50 mm in diameter. Moreover, tapping test was performed on a machining center with rotational speed of 20 rpm and cutting feed rate of 20 mm/min after burring. The hardness of flange after burring was evaluated by hardness increment (ΔHV) expressed by ΔHV=HVmax–HV0, where HVmax and HV0 are a maximum hardness after deformation and a base material hardness (an initial Vickers hardness).<br>The hardness increment (ΔHV) increased with increasing of manganese content. The lower the initial carbon concentration in retained austenite (Cγ0), the higher the hardness increment (ΔHV). Strain induced transformation and work hardening contributed to the toughness of flange after burring with TDP steel having a tensile strength of 980 MPa grade.
Journal
-
- Tetsu-to-Hagane
-
Tetsu-to-Hagane 100 (11), 1421-1425, 2014
The Iron and Steel Institute of Japan
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001205127554688
-
- NII Article ID
- 130004706539
-
- NII Book ID
- AN10528571
-
- ISSN
- 1341688X
- 18832954
- 00211575
-
- NDL BIB ID
- 025899320
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed