多元合金铁基堆焊层的回火稳定性  

Tempering Stability of Fe-base Hardfacing Layer Containing Multiple Alloying Element

作　　者：王洪海 马焕明 

机构地区：[1]秦皇岛市戴卡轮毂制造有限公司,河北秦皇岛066003

出　　处：《物理测试》2006年第4期12-14,共3页Physics Examination and Testing

摘　　要：对多元合金铁基堆焊层的焊态试样进行不同条件下的回火后处理,研究了该堆焊层的回火稳定性。结果表明,多元合金铁基堆焊层经560℃保温4 h回火后,堆焊层硬度达HRC 57;经700℃17℃急冷急热重复循环150次后,堆焊层硬度达HRC 43,具有较高的回火稳定性及“二次硬化”现象。After tempering treatment at different conditions, the tempering stability of Fe-base hardfacing layer containing multiple alloying element was investigated. The results show that after tempering treatment at 560℃ for 4 hours, the hardness value of Fe-base hardfacing layer containing multiple alloying element can reach HRC 57; By repeatedly heat circle of 700℃ ←→17℃ for 150 times, the hardness value of Fe-base hardfacing layer can reach HRC 43, and the Fe-base hardfacing layer possesses higher tempering stability and secondary hardening phenomenon.

关 键 词：铁基堆焊层 回火稳定性 多元合金 

分 类 号：TG156.5[金属学及工艺—热处理]