|
|
|
| Effect of modification treatment on microstructure and properties #br#
of wear and corrosion resistant cast iron |
| SONG Yanpei1，2，WANG Huigai2，LI Li1，SU Ming1，YOU Long2 |
(1. School of Mechatronics Engineering， Hainan Institute of Science and Technology，
Haikou 570100， Hainan， China；
2. School of Materials Science and Engineering， Henan University of
Science and Technology， Luoyang 471000， Henan， China)
|
|
|
|
|
Abstract For improving service properties of the materials in the condition of cement concrete stirring and conveying，a newly developed wear and corrosion resistant cast iron were taken as the research object. Effect of addition amount of the complex modifier on microstructure，mechanical properties and corrosive wear property of the wear and corrosion resistant cast iron were investigated by complex metamorphic treatment. The experimental results show that the compound modification can refine the matrix microstructure，eliminate columnar dendrite grain in the matrix microstructure，change the carbide morphology，size and distribution，diminish the harm of coarse flake carbide on the wear and corrosion resistant cast iron matrix，and which increase mechanical properties and corrosive wear resistance. The addition of more complex modifier can significantly enhance the toughness and corrosive wearresistance. Compared with the unmodified wear and corrosion resistant cast iron，impact toughness and corrosive wear resistance of the wear and corrosion resistant cast iron modified by 0.25% and 0.50% complex modifier are increased by 22.9%，58.3% and 16%，23% respectively，and hardness have a little change，which has achieved the expected goal.
|
|
|
|
|
|
| [1] |
LI Si-jun， DU Jin-ke， PENG Yong-xiang， LI Ping， HU Bin. Numerical simulation study on single-point unequilibrium casting for beam blank in Laiwu Iron and Steel Company[J]. CONTINUOUS CASTING, 2020, 45(3): 1-9. |
| [2] |
ZHENG Yuan-shou. High speed production technology of 160 mm× 160 mm continuous casting in Sangang[J]. CONTINUOUS CASTING, 2020, 45(3): 10-13. |
| [3] |
WANG Bingxing，ZHU Fuxian，WANG Chao，LOU Haonan，. Application of oxide metallurgy in high heat input welding steels[J]. Iron and Steel, 2019, 54(9): 12-21. |
| [4] |
WANG Chengyong, MEN Dongpo, CHEN Peng, LI Ziwen. Nonlinear prediction model for caking index based on coal petrology[J]. Iron and Steel, 2019, 54(9): 22-26. |
| [5] |
NIU Lele,LIU Zhengjian,ZHANG Jianliang,ZHANG Zongwang, WANG Yaozu,DU Chengbo. Effect of mineral composition of iron ore on metallurgical properties of sinter[J]. Iron and Steel, 2019, 54(9): 27-32. |
| [6] |
LU Yanan,WU Shengli,WANG Laixin,KOU Mingyin. Analysis of chemical compositions of slag affecting #br#
desulphurization in hot metal of COREX process[J]. Iron and Steel, 2019, 54(9): 33-38. |
|
|
|
|
