硼对高强度弹簧钢力学性能的影响  

EFFECT OF BORON ON MECHANICAL PROPERTIES OF HIGH STRENGTH SPRING STEEL

作　　者：聂义宏[1] 惠卫军[1] 董瀚[1] 时捷[1] 傅万堂[2] 

机构地区：[1]钢铁研究总院结构材料研究所,北京100081 [2]燕山大学材料科学与工程学院,秦皇岛066004

出　　处：《钢铁》2004年第5期51-54,58,共5页Iron and Steel

基　　金：国家重点基础研究发展规划项目 (973)资助项目(G1 9980 6 1 5 0 3)

摘　　要：研究了不同含量硼元素 ( 0 .0 0 0 6 %～ 0 .0 0 2 7% )对中碳高强度弹簧钢力学性能的影响。研究结果表明 ,添加微量硼能够显著提高钢的淬透性 ,且不同硼含量试验钢的淬透性无明显差别。适当提高钢中的硼含量 ,试验钢的强度虽有所降低 ,然而其冲击韧性却得到明显提高。在相同的硬度水平下 ,随着钢中硼含量的增加 。The effect of different amount (0.0006 %~0.0027 %) of boron on mechanical properties of high strength spring steel was investigated. The results show that the addition of boron can remarkably increase the hardenability of the steels tested. The difference of the hardenability for steels with different amount of boron is not significant. With the increase of boron content, the toughness of the steel increases significantly, though there is little decrease of its strength.The hysteresis loop area measured in torsional Bauschinger tests, which is much closely related with the sag resistance,increases with the increase of boron content at the same hardness level.

关 键 词：硼 高强度弹簧钢 力学性能 淬透性 弹减抗力 

分 类 号：TG115.5[金属学及工艺—物理冶金]