淬火介质对AISI 4147钢力学性能的影响  

Influence by Quenching Medium on Mechanical Properties of AISI 4147 Steel

作　　者：曹金荣 CAO Jinrong(Tianjin Pipe Co.,Ltd.,Tianjin 300301,China)

机构地区：[1]天津钢管制造有限公司,天津300301

出　　处：《钢管》2024年第6期73-76,共4页Steel Pipe

摘　　要：研究了AISI 4147气瓶钢管15%水PAG基淬火液淬火和油淬火两种不同的热处理工艺,对比分析了两种热处理工艺对钢的组织和力学性能的影响以及该种气瓶的淬火二维FEM有限元数值模拟。研究结果表明:瓦片状试样经15%PAG水基淬火液淬火后洛氏硬度比油淬火后的硬度稍高,拉伸性能与油淬火的基本相同,而冲击功稍高于油淬火的;采用15%PAG水基淬火液淬火获得的马氏体含量高,有利于提高AISI 4147钢厚壁气瓶低温冲击韧性。Studied here in the paper are two heat treatment processes for the AISI 4147 gas vessel steel pipe,i.e.,quenching with the 15%PAG water-based quenching fluid and oil quenching.The influences by the two heat treatment processes on the microstructure and mechanical properties are comparatively analyzed.Also described is the 2-dimension FEM numerical simulation of the quenching of the gas vessel as made of the said steel pipe.The research result shows that after being separately quenched with the 15%PAG water-based quenching fluid,and with the oil,the Ro-ckwell hardness of the tile-shaped specimen of the pipe as resulting from the water quenching is a little bit higher than that resulting from the oil quenching,while the tensile properties of it as resulting from the two different quenching processes are almost the same,but the impact energy from the water quenching is slightly higher than that from the oil quenching;comparatively the qu-enching process with the 15%PAG water-based fluid brings about higher martensite content,which is good for improving the low-temperature impact toughness of the gas cylinder as made of the AISI 4147 steel pipe.

关 键 词：无缝钢管 AISI 4147钢 气瓶 淬火介质 力学性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG156.3[金属学及工艺—金属材料]