|
|
|
| Study on the formation of heterogeneity particulates in the web crack of H beam |
| HUO Xi-wei，LIU Chun-wei，SUN Xiao-qing，FANG Jin-lin |
| （Technology Center of LaiWu Steel Group, Laiwu 271105, Shandong, China） |
|
|
|
|
Abstract In the metallographic and SEM analysis of the web crack of Laiwu Steel Group’s H beam, found that there are lots of heterogeneity particulates round the web crack. In order to find the character of the heterogeneity particulates, the relationship between the heterogeneity particulates and the web crack, and the forming process of web crack metallographic structure which have the same characteristic, this paper designed a special experiment prefabricate web crack in the shaped blank to research and test. By researching of the experiment, this paper found the character of the heterogeneity particulates, the relationship between the heterogeneity particulates and the web crack, the forming process of web crack metallographic structure, and concluded the main factors of influencing the forming process and size of the heterogeneity particulates. Designed prevention measures in continue casting, heating and hot rolling process to decrease or eliminate the web crack.
|
|
Received: 27 May 2014
Published: 13 April 2015
|
|
|
|
| [1] |
SUI Ya-fei, DENG Zhi-xun, ZHAO Ru, QI Jiang-hua. Inclusions in hot rolled pickling plate for automobile structure through CSP process[J]. Iron and Steel, 2021, 56(4): 44-51. |
| [2] |
LI Jian-quan, WU Guo-rong, SUN Yan-hui, LEI Yang-wei, ZHOU Ming-jia. Precipitation behavior of carbonitride in P590L steel in CC process[J]. CONTINUOUS CASTING, 2021, 40(4): 17-20. |
| [3] |
Cong-peng Kang, Fu-bin Liu, Huai-bei Zheng, Hua-bing Li, Zhou-hua Jiang, Kui Chen, Hao-yang Suo, Xin-hao Yu. Microstructure evolution and mechanical properties of PESR 55Cr17Mo1VN plastic die steel during quenching and tempering treatment[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2021, 28(12): 1625-1633. |
| [4] |
CHENG Lin，HU Zhi-yuan，PANG Wei-guang，ZHAO Xiao-dong，LIU gong-tao，SHI Ai-chen. Inclusions distribution in non-oriented silicon steel and its influence on performance consistency of strip steel[J]. , 2019, 38(1): 44-48. |
| [5] |
LIU Hui，，，WANG Yang，，，SUN Qing，ZHU Jing-tao，FU Jian-xun，，. Analysis on delaminating of tensile fracture for 700 MPa beam steel[J]. Iron and Steel, 2017, 52(11): 52-58. |
| [6] |
LIU Biao,SONG Xin- li,ZHU Rui- qi,JIA Juan. Analysis of textures and precipitates of hot rolled Nb- bearing low temperature oriented silicon steel strip[J]. , 2017, 29(10): 823-830. |
|
|
|
|
2015, Vol. 34 
