J506Fe焊条熔敷金属低温韧性的研究  

Research on Low-temperature Toughness of J506Fe Electrode Deposited Metal

作　　者：黄峰 陈冰泉[2] 

机构地区：[1]武桥重工集团股份有限公司,湖北武汉430056 [2]武汉理工大学华夏学院,湖北武汉430223

出　　处：《热加工工艺》2015年第3期230-231,239,共3页Hot Working Technology

摘　　要：J506Fe焊条是一种可应用于-30℃的高强度焊条。为了进一步提高该焊条熔敷金属的冲击韧性,通过不同温度下的系列冲击试验以及断口分析,对某企业J506Fe焊条的低温性能进行了研究。结果表明,该J506Fe焊条熔敷金属在≥-10℃时处于韧性状态;在≤-40℃时处于脆性状态;在-30℃时的冲击功为84.2 J,处于从韧性向脆性的转变区,此时其冲击断口呈现脆性的解理断裂形貌,需要对该焊条进行改进。J506Fe electrode is a high-strength electrode. In order to improve the impact toughness of the electrode, by a series of impact tests at different temperatures and fractured surface analysis, the low-temperature properties of J506Fe electrode were researched. The researches show that, the deposited metal of J506Fe electrode is in a tough state at ≥-10℃, and in a brittle state at ≤-40℃. The impact work is 84.2 J at -30℃ （in the transition zone from toughness to brittleness）; the fractured surface of deposited metal has a brittle cleavage fracture appearance at ≤-30℃, and it becomes necessary to improve the electrode.

关 键 词：J506Fe 低温韧性 冲击试验 断口分析 

分 类 号：TG422.3[金属学及工艺—焊接]