轧制工艺对耐大气腐蚀钢综合性能的影响  

Effect of rolling process on comprehensive properties of atmospheric corrosion resistant steel

作　　者：宋凤明[1,2] 杜林秀[1] 温东辉[2] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004 [2]宝山钢铁股份有限公司研究院,上海201900

出　　处：《金属热处理》2012年第12期65-68,共4页Heat Treatment of Metals

摘　　要：分析了轧制工艺参数对耐大气腐蚀钢综合性能的影响。结果表明,终轧温度、卷取温度和轧后冷速均对钢板力学性能有影响,卷取温度对钢板强度的影响高于终轧温度,钢板强度随卷取前冷却速度的提高而增加,冷速超过12℃/s后不再进一步提高。耐大气腐蚀性主要与成分有关。试验成品钢板强度高,屈强比低,具有良好的低温冲击韧性和冷弯加工性能及优良的耐大气腐蚀性。Effect of rolling process parameters on mechanical properties of weathering steel were analyzed. The results show that the mechanic properties are effected by finish-rolling temperature, coiling temperature and post-rolled cooling rate. The influence of coiling temperature on strength is higher than that of finish-rolling, the steel strength increases with the increase of cooling rate until 12 ℃/s. While the atmospheric corrosion resistance is mainly depend on the chemical compositon. The product of weathering steel exhibits high strength and low yield ratio, and has fine low temperature impact roughness, good cold bending properties and excellent atmospheric corrosion resistance.

关 键 词：轧制工艺 耐大气腐蚀钢 高强度 

分 类 号：TG142.1[一般工业技术—材料科学与工程]