热处理对347型不锈钢带极埋弧堆焊层性能的影响  

The Effect of PWHT on 347 Strip SAW Overlay Layers’Properties

作　　者：张德金[1] 马鸣[1,2] 徐祥久 ZHANG De-jin;MA Ming;XU Xiang-jiu(Harbin Boiler Factory Co.,Ltd.,Harbin 150046,China;State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers,Harbin 150046,China)

机构地区：[1]哈尔滨锅炉厂有限责任公司,哈尔滨150046 [2]高效清洁燃煤电站锅炉国家重点实验室,哈尔滨150046

出　　处：《应用能源技术》2022年第7期38-41,共4页Applied Energy Technology

摘　　要：EQ347型不锈钢材料具有良好的焊接性和力学性能,在高温氧化性环境中具有优良的耐腐蚀性能。本文通过对SA-387Gr.11Cl.2基材上采用带极埋弧堆焊EQ309L+EQ347材料,并分别对堆焊试件在焊态及退火热处理后的弯曲、晶间腐蚀、微观金相及硬度开展对比试验,确定热处理对此类不锈钢堆焊层性能的影响,最终得出347型不锈钢堆焊层热处理与否对产品性能影响不大。The EQ347 strip has good weldability and mechanical properties and it has excellent corrosion resistance in high temperature oxidizing environment.Through the analysis of SA-387Gr.11Cl.2.SAW overlay EQ309L+EQ347,and the comparative tests are carried out on the bending,intergranular corrosion,microstructure and hardness of the overlay layers,after annealing the effect of PWHT on the performance of this kind of stainless-steel overlay layers.Finally,it is concluded that the PWHT of 347 stainless steel overlay layers’have little effect on the product performance.

关 键 词：不锈钢 带极堆焊 热处理 敏化 

分 类 号：TG455[金属学及工艺—焊接]