浅析20g时效冲击韧性偏低原因  

Reason Analyses of Ageing Impact Toughness on the Low Side of 20g Plate

作　　者：彭海红[1] 李国宝[1] 邢相勤[1] 李率民[1] 

机构地区：[1]济南钢铁集团总公司,山东济南250101

出　　处：《山东冶金》2006年第1期17-19,共3页Shandong Metallurgy

摘　　要：针对检验中出现的时效冲击值偏低的情况,统计了近3年济钢中板厂20g钢板的性能情况,对成分和性能进行回归分析,并且检验了夹杂物、金相组织和氧氮含量。结果表明,影响时效冲击韧性的主要因素是碳、硫和钛含量以及夹杂物等。建议通过严格控制碳硫含量,提高钛含量和钢水纯净度,以提高钢板的时效冲击韧性。In view of appearing the problem of ageing impact toughness on the low side in test, the performances of 20g medium plate near three years are counted, the regression analyses for composition and performance are carried out and the inclusion, metallographic microscope and oxygen-nitrogen content are inspected. The results show that the main factors which affect the impact toughness are carbon, sulfur and titanium content and the inclusions. The ageing impact toughness of the medium plate can be increased by controlling carbon and sulfur content and improving titanium content and the purity of the molten steel.

关 键 词：锅炉钢板 时效冲击韧性 力学性能 回归分析 

分 类 号：TG142.41[一般工业技术—材料科学与工程]