C含量对GH4199合金析出相和性能的影响  

Influence of C Contents on Precipitated Phases and Properties of GH4199 Alloy

作　　者：韦家向 

机构地区：[1]攀钢集团江油长城特殊钢有限公司技术中心,四川江油621704

出　　处：《特钢技术》2009年第3期12-14,共3页Special Steel Technology

摘　　要：通过对GH4199合金不同C含量试样进行固溶热处理(1 150℃×20 min/AC)和标准热处理(1 150℃×20 min/AC+950℃×5 h/AC),然后进行物相分析和各项性能检测,得出:随着C含量的增加,碳化物数量有所增加,M_6C碳化物类型以(W、Mo)_6C为主,γ′相的数量略有增加;随着C含量的增加,除提高室温强度外,合金的室温塑性、高温强度和塑性、持久寿命却有降低;为使GH4199合金强度和塑性达到良好匹配,应将其C含量控制在较低的范围内。Solid solution heat treating(1150℃×20min/AC)and standard heat treating(1150℃×20min/AC + 950℃×5h/ AC) the samples with different C contents taken from GH4199 alloy,then analyzing the phases and testing the properties respectively, it was concluded in this paper that with the increase of C contents,the amount of the carbides was increased,of which,(W, Mo) 6C was the major M6C type carbides,the amount of theγphases was increased slightly;on the other hand,the room temperature strength was increased,whereas the...

关 键 词：GH4199合金 c含量 析出相 拉伸性能 持久性能 

分 类 号：TG132.32[一般工业技术—材料科学与工程]