Performance of A New Type of Non-magnetic Austenitic Stainless Steel

Fan Xiaoming; Li Jiazhen; Chen Tao; Zhu Wending; Wang Xinwei

doi:10.15980/j.tzzz.2019.07.007

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Performance of A New Type of Non-magnetic Austenitic Stainless Steel
Vol. 39, Issue 7, Pages: 723-726(2019)
Published： 2019 ，
DOI： 10.15980/j.tzzz.2019.07.007

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[1]范晓明,李嘉臻,陈涛,朱稳定,王信伟.新型无磁奥氏体不锈钢的研究[J].特种铸造及有色合金,2019,39(07):723-726.

Fan Xiaoming, Li Jiazhen, Chen Tao, et al. Performance of A New Type of Non-magnetic Austenitic Stainless Steel. [J]. Special Casting & Nonferrous Alloys 39(7):723-726(2019)
[1]范晓明,李嘉臻,陈涛,朱稳定,王信伟.新型无磁奥氏体不锈钢的研究[J].特种铸造及有色合金,2019,39(07):723-726. DOI： 10.15980/j.tzzz.2019.07.007.

Fan Xiaoming, Li Jiazhen, Chen Tao, et al. Performance of A New Type of Non-magnetic Austenitic Stainless Steel. [J]. Special Casting & Nonferrous Alloys 39(7):723-726(2019) DOI： 10.15980/j.tzzz.2019.07.007.

摘要

通过中频感应炉熔炼合金

采用熔模铸造工艺制备了新型无磁奥氏体不锈钢试块。采用金相显微镜、X射线衍射仪、Instron5882万能材料试验机和振动试验磁强计等手段

分析了铸态和固溶态304奥氏体不锈钢的显微组织、力学性能和相对磁导率;然后以304奥氏体不锈钢为基材

通过调整Mn、Ni、Cu等主要合金元素的含量

制备出一种新型的铸态无磁奥氏体不锈钢。结果表明

经1 200℃固溶4h的304奥氏体不锈钢试样的相对磁导率为1.008 7

达到了无磁材料的要求（μr≤1.02）

且力学性能优良;铸态新型无磁奥氏体不锈钢的相对磁导率为1.006 6

力学性能良好。

Abstract

The alloy was melted by medium frequency induction furnace

and the test blocks of non-magnetic austenite stainless steel were poured by investment casting.By metallographic microscope

X-ray diffractometer

Instron 5882 universal material testing machine and vibrating sample magnetometer

the microstructure

mechanical properties and relative permeability of 304 austenitic stainless steel at as-cast and solid solution conditions were analyzed.Then

based on the experimental results of previous 304 austenitic stainless steel

a type of new as-cast non-magnetic austenitic stainless steel was prepared by changing the content of main alloy elements such as Mn

Ni and Cu.The results demonstrate that the relative permeability of solid solution（1 200℃×4 h）304 austenitic stainless steel sample is 1.008 7

which meets the requirements of non-magnetic materials（μr≤1.02）

presenting the satisfied mechanical properties.The as-cast new austenitic stainless steel is non-magnetic material with relative permeability 1.006 6 and desirable mechanical properties.