5Ni-Cr-Mo钢配套焊条药皮碱度研究  

Optimal Basicity of 5Ni-Cr-Mo Steel Electrode Coating

作　　者：洪江波[1] 熊征[1] 陈德斌[1] 桂赤斌[1] 

机构地区：[1]海军工程大学船舶与动力学院,湖北武汉430033

出　　处：《机械工程材料》2005年第8期17-18,21,共3页Materials For Mechanical Engineering

摘　　要：研究了5Ni-Cr-Mo钢焊条不同药皮碱度时熔敷金属-50℃冲击韧度(Akv)及扩散氢含量.结果表明:提高药皮碱度明显提高了熔敷金属的冲击韧度,却不利于降低扩散氢含量;但是,当药皮碱度在2.2～2.4之间时,熔敷金属冲击韧度和扩散氢含量均能获得较满意的值.While the 5Ni-Cr-Mo steel covered electrode coating basicity was varied, the value of Akw at --50℃ and HD in deposited metal were changed. Akw at --50 ℃ might be obviously improved by increasing coating basicity, however, HD was deteriorated at the same time. But when the coating basicity was in the range of 2. 2-2. 4 the values of Akw and HD all were satisfied.

关 键 词：药皮碱度 熔敷金属 冲击韧度 扩散氢 

分 类 号：TG422.1[金属学及工艺—焊接]