硅对耐蚀塑料模具钢力学性能的影响  

Effect of Silicon on Mechanical Properties of Corrosion Resistant Plastic Mold

作　　者：蔡清[1] 刘明[1] 冯淑玲[1] 潘彦丰[1] 赵长顺 Cai Qing;Liu Ming;Feng Shuling;Pan Yanfeng;Zhao Changshun(Technology Center of Fushun Special Steel Co.,Ltd.,Fushun,Liaoning 113001,CHN)

机构地区：[1]抚顺特殊钢股份有限公司技术中心,辽宁抚顺113001

出　　处：《模具制造》2021年第6期81-84,共4页Die & Mould Manufacture

摘　　要：利用硬度、冲击和拉伸试验机对两种试验钢4Cr13Si和4Cr13进行了力学性能测试,分析了硅元素对试验钢在不同热处理温度下的硬度、初性和强度的影响。研究表明,含硅的4Crl3Si钢的高温回火硬度高于4Cr13钢,而且4Cr13Si钢在650℃的硬度仍可达到35HRC左右。由于钢中添加大量的硅元素推迟了马氏体的分解,4Cr13Si钢的冲击軔性不及4Cr13钢,尤其在高于530℃的高温回火后二者冲击值差别明显。试验钢的拉伸和屈服强度随回火温度的提高先升高后降低,含硅的4Cr13Si钢在试验温度范围内拉伸强度和屈服强度均高于4Cr13钢。In this paper,mechanical performance of two kinds of test steels of 4Cr13Si and 4Cr13 were tested by hardness,impact and tensile testing machine,and the influence of silicon in different heat treatment temperature on hardness,impact and tensile were analyzed.The results show that,high temperature tempering hardness of 4Cr13Si steel was higher than 4Crl3 steel,and the hardness of 4Cr13Si steel can still reached around 35HRC at 650℃.The impact toughness of 4Cr13Si steel less than 4Cr13 steel,the impact value of high temperature tempering were obviously different especially over 530℃ by the addition large amount of silicon to steel delays the decomposition of martensite.The tensile and yield strength of the test steels were increased and then decreased with the increase of tempering temperature.The tensile strength and yield strength of 4Cr13Si steel containing silicon were higher than 4Cr13 steel in the test temperature range.

关 键 词：硅 耐蚀塑料模具钢 力学性能 影响 

分 类 号：TG162[金属学及工艺—热处理] TG142[金属学及工艺—金属学]