| PHASE TRANSFORMATION UNIT OF BAINITIC FERRITE AND ITS SURFACE RELIEF IN LOW AND MEDIUM CARBON ALLOY STEELS |
| |
| 引用本文： | YU Degang CHEN Dajun ZHENG Jinghong HE Yirong SHEN Fufa Shanghai Jiaotong University,Shanghai,China Professor,Department of Materials Science and Engineering,Shanghai Jiaotong University,1954 Huashan Road,Shanghai 200030,China. PHASE TRANSFORMATION UNIT OF BAINITIC FERRITE AND ITS SURFACE RELIEF IN LOW AND MEDIUM CARBON ALLOY STEELS[J]. 金属学报(英文版), 1989, 2(3): 161-167 |
| |
| 作者姓名： | YU Degang CHEN Dajun ZHENG Jinghong HE Yirong SHEN Fufa Shanghai Jiaotong University Shanghai China Professor Department of Materials Science and Engineering Shanghai Jiaotong University 1954 Huashan Road Shanghai 200030 China |
| |
| 作者单位： | YU Degang CHEN Dajun ZHENG Jinghong HE Yirong SHEN Fufa Shanghai Jiaotong University，Shanghai，China Professor，Department of Materials Science and Engineering，Shanghai Jiaotong University，1954 Huashan Road，Shanghai 200030，China |
| |
| 摘 要： | The lath-or plate-shaped bainitic ferrite of low and medium carbon alloy steels consists ofpackets of ferrite sublaths which are composed of many finer and regular ferrite blocks.Theyare uniform shear growth units of bainitic phase transformation.No carbide is precipitatedfrom them.The bainitic O-carbides are precipitated from γ-α interface or carbon-richaustenite.The mode of arrangement of the units in ferrite sublath packet is in uni-or bi-di-rection.Single surface relief is produced by the accumulation of uniform shear strains with allthe ferrite units arranged unidirectionally in a sublath packet,while tent-shaped surface reliefis formed by the integration of the uniform shear strains of two groups with ferrite units pilingup in two directions and growing face to face;whereas if they grow back to back,the integra-tion will be responsible for invert-tent-shaped surface relief.The interface trace between twogroups of ferrite units in a sublath packet is shown as“midrib”.
|
| 收稿时间： | 1989-06-25 |
| 修稿时间： | 1989-06-25 |
PHASE TRANSFORMATION UNIT OF BAINITIC FERRITE AND ITS SURFACE RELIEF IN LOW AND MEDIUM CARBON ALLOY STEELS |
| |
| YU Degang CHEN Dajun ZHENG Jinghong HE Yirong SHEN Fufa Shanghai Jiaotong University,Shanghai,China Professor. PHASE TRANSFORMATION UNIT OF BAINITIC FERRITE AND ITS SURFACE RELIEF IN LOW AND MEDIUM CARBON ALLOY STEELS[J]. Acta Metallurgica Sinica(English Letters), 1989, 2(3): 161-167 |
| |
| Authors: | YU Degang CHEN Dajun ZHENG Jinghong HE Yirong SHEN Fufa Shanghai Jiaotong University Shanghai China Professor |
| |
| Affiliation: | YU Degang CHEN Dajun ZHENG Jinghong HE Yirong SHEN Fufa Shanghai Jiaotong University,Shanghai,China Professor,Department of Materials Science and Engineering,Shanghai Jiaotong University,Huashan Road,Shanghai,China |
| |
| Abstract: | The lath-or plate-shaped bainitic ferrite of low and medium carbon alloy steels consists of packets of ferrite sublaths which are composed of many finer and regular ferrite blocks.They are uniform shear growth units of bainitic phase transformation.No carbide is precipitated from them.The bainitic O-carbides are precipitated from γ-α interface or carbon-rich austenite.The mode of arrangement of the units in ferrite sublath packet is in uni-or bi-di- rection.Single surface relief is produced by the accumulation of uniform shear strains with all the ferrite units arranged unidirectionally in a sublath packet,while tent-shaped surface relief is formed by the integration of the uniform shear strains of two groups with ferrite units piling up in two directions and growing face to face;whereas if they grow back to back,the integra- tion will be responsible for invert-tent-shaped surface relief.The interface trace between two groups of ferrite units in a sublath packet is shown as“midrib”. |
| |
| Keywords: | low and medium carbon alloy steels bainite ferrite phase transformation unit surface relief |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《金属学报(英文版)》浏览原始摘要信息 |
|
点击此处可从《金属学报(英文版)》下载全文 |
