Effect of Rare Earth Elements on Machining Characteristics of Austenitic Stainless Steels without Lead Addition

被引：0
|
作者：
Li Zhuang [1 ]
Wu Di [2 ]
Lv Wei [3 ]
Kang Shaopu [1 ]
Zheng Zhen [1 ]
机构：
[1] Shenyang Aerosp Univ, Sch Mat Sci & Engn, Shenyang 110136, Peoples R China
[2] Northeastern Univ, State Key Lab Rolling Automat, Shenyang 110004, Peoples R China
[3] Shenyang Aerospace Univ, Grad Sch, Shenyang 110136, Peoples R China
来源：
ADVANCES ON MATERIALS ENGINEERING | 2013年 / 377卷
基金：
中国国家自然科学基金;
关键词：
rare earth elements (ree); machining characteristics; austenitic stainless steels; without lead addition; MACHINABILITY;
D O I：
10.4028/www.scientific.net/AMM.377.128
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Rare earth elements (REE) are harmless for human health. REE addition contributes to the improvement of the machinability of the steels. In the present paper, machining characteristics of austenitic stainless steels without lead addition were investigated by adding free-machining elements, such as sulfur, REE and bismuth. The results have shown that large numbers of rounded, globular shaped inclusions were obtained for both steels. The machinability of steel B is better than that of steel A, and the cutting forces of steel B are lower than those of steel A at various cutting speeds. Lead can be substituted by REE and bismuth in free machinable austenitic stainless steels. REE significantly affects machining characteristics of austenitic stainless steels without lead addition. The mechanical properties of both steels were similar, and their fracture exhibited ductile characteristics. Satisfactory machinability and mechanical properties can be obtained for both steels.
引用
收藏
页码：128 / +
页数：2
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