淬火工艺对Ni-Cr-Mo-B超厚钢板心部力学性能的影响  

Effect of Quench Process on Mechanical Properties of the Center of the Ni-Cr-Mo-B Ultra-Thick Steel Plate

作　　者：王小勇[1] 潘涛[1] 王华[2] 李云[2] 苏航[1] 李向阳 

机构地区：[1]钢铁研究总院结构材料研究所,北京100081 [2]鞍钢股份有限公司,辽宁鞍山114021 [3]中国钢研科技集团有限公司,北京100081

出　　处：《钢铁》2012年第6期79-83,共5页Iron and Steel

摘　　要：为了改善Ni-Cr-Mo-B超厚钢板的心部性能,研究了不同淬火温度、不同保温时间以及循环淬火处理对Ni-Cr-Mo-B超厚钢板心部力学性能的影响。结果表明:试验用Ni-Cr-Mo-B超厚板最佳的淬火温度区间为890～920℃;在最佳淬火温度区间内,淬火保温时间延长为3h,可获得更为理想的心部性能;采用循环淬火处理可以显著改善超厚板的心部性能。Effects of different quenching temperatures, different soaking time and double quenching process on mechanical properties of ultra-thick steel plate were investigated in order to improve the properties of the center of the Ni-Cr-Mo-B ultra-thick steel plate. The results show that excellent combination properties for strength and toughness, especially a good property in plate center can be achieved by quenching at 890-920 ℃, extended soaking time （to 3 h） or double quenching process.

关 键 词：超厚板 淬火温度 保温时间 循环淬火 

分 类 号：TG156.3[金属学及工艺—热处理]