Study on the Machinability of Free Cutting Non-Lead Austenitic Stainless Steels

被引：1
|
作者：
Wu, Di [1 ]
Li, Zhuang [2 ]
机构：
[1] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110004, Liaoning, Peoples R China
[2] Shenyang Aeronaut & Astornaut, Sch Mat Sci & Engn, Liaoning 110136, Peoples R China
来源：
FRONTIERS OF ADVANCED MATERIALS AND ENGINEERING TECHNOLOGY, PTS 1-3 | 2012年 / 430-432卷
基金：
中国国家自然科学基金;
关键词：
austenitic stainless steel; machinable additives; bismuth; the machinability; the mechanical properties; LEAD;
D O I：
10.4028/www.scientific.net/AMR.430-432.306
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a new non-lead machinable austenitic stainless steel was investigated. The metallurgical properties, machinability and mechanical properties of the developed alloy were compared with those of the conventional austenitic stainless steel 321. The results have shown that the presence of machinable additives, such as sulfur, copper and bismuth, etc. contributes to the improvement of the machinability of austenitic stainless steel, because the inclusions are something like internal notches causing crack nucleation and facilitating rupture. Bismuth has a distinct advantage over lead. The machinability of the austenitic stainless steels with free-cutting additives is much better than that of austenitic stainless steel 321. The mechanical properties of the free cutting austenitic stainless steel are similar to those of 321 although the former are slightly lower than those of the latter.
引用
收藏
页码：306 / +
页数：2
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