表面温度对铁素体不锈钢组织和性能的影响

苏梦瑶; 王阿龙; 李苗苗

doi:10.15980/j.tzzz.2019.10.006

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表面温度对铁素体不锈钢组织和性能的影响
Effects of Surface Temperature on Microstructure and Mechanical Properties of Ferritic Stainless Steel
2019年39卷第10期页码：1065-1068
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.10.006

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[1]苏梦瑶,王阿龙,李苗苗.表面温度对铁素体不锈钢组织和性能的影响[J].特种铸造及有色合金,2019,39(10):1065-1068.

Su Mengyao, Wang A′long, Li Miaomiao. Effects of Surface Temperature on Microstructure and Mechanical Properties of Ferritic Stainless Steel[J]. Special Casting & Nonferrous Alloys, 2019,39(10):1065-1068.
[1]苏梦瑶,王阿龙,李苗苗.表面温度对铁素体不锈钢组织和性能的影响[J].特种铸造及有色合金,2019,39(10):1065-1068. DOI： 10.15980/j.tzzz.2019.10.006.

Su Mengyao, Wang A′long, Li Miaomiao. Effects of Surface Temperature on Microstructure and Mechanical Properties of Ferritic Stainless Steel[J]. Special Casting & Nonferrous Alloys, 2019,39(10):1065-1068. DOI： 10.15980/j.tzzz.2019.10.006.

摘要

针对振动激发金属液形核技术

研究了不同晶核发生器表面温度对铸锭组织和力学性能的影响。结果表明

随着表面温度升高

铸锭的平均晶粒尺寸呈现先下降后上升的趋势

抗拉强度、屈服强度和硬度均呈现先上升后下降的趋势。在晶核发生器表面温度为500℃时

铸锭的综合性能达到最佳

其平均晶粒尺寸为47.66μm;室温抗拉强度、屈服强度和硬度（HV）分别为544 MPa、443MPa和149。

Abstract

The effects of surface temperature of different nucleation generators on the structure and mechanical properties of ferritic stainless steel ingots were investigated based on the vibration-induced liquid metal nucleation technology.The results reveal that with the increase of the surface temperature of the nucleation generator

the average grain size in the ingot obtained after nucleation experiment is decreased firstly and then increased

while the tensile strength

yield strength and hardness are increased firstly and then decreased.When the surface temperature of the nucleation generator is 500 ℃

the comprehensive properties of the ingot presents desirable

where the average grain size is 47.66μm

and the ambient tensile strength

yield strength and hardness reach 544 MPa

443 MPa and 149 HV

respectively.