叶片用X5CrNiCuNb16-4钢韧脆转变温度的研究  

Research on Ductile-brittle Transition Temperature of X5CrNiCuNb16-4 Steel for Blade

作　　者：闫卓 YAN Zhuo(Shenyang Blower Works Group Corporation,Shenyang Liaoning 110869,China)

机构地区：[1]沈阳鼓风机集团股份有限公司,辽宁沈阳110869

出　　处：《热处理技术与装备》2022年第2期26-28,32,共4页Heat Treatment Technology and Equipment

摘　　要：X5CrNiCuNb16-4为一种马氏体沉淀硬化不锈钢,作为轴流压缩机叶片的常用材料,目前已经拓展到低温工况中使用。采用国家标准GB/T 8732中推荐的热处理工艺参数对X5CrNiCuNb16-4进行热处理后,对其力学性能进行检验,并对不同温度下的夏比V型缺口进行冲击试验。通过冲击断口形貌分析,获得不同试验温度下的剪切断面率和侧向膨胀量,最终确定现有热处理工艺参数下该材料的韧脆转变温度为-75℃。X5CrNiCuNb16-4 is a kind of martensite precipitation hardening stainless steel.As a conventional material for axial flow compressor blades,it has been applied to low temperature working condition.In this thesis,the heat treatment process parameters recommended in national standard GB/T 8732 are employed,and the mechanical properties are tested.The Charpy V-shape impact tests are carried out at different temperatures.Through analysis of impact fracture morphology,the shear section ratios and lateral expansions at different temperatures are obtained,and the ductile-brittle transition temperature under the existing heat treatment parameters is-75℃.

关 键 词：马氏体沉淀硬化不锈钢 冲击试验 剪切断面率 韧脆转变温度 

分 类 号：TG142.71[一般工业技术—材料科学与工程]