热处理温度对含钼铁素体不锈钢0Cr17Mo2S组织及性能的影响
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摘要
不锈钢中添加钼元素可显著改善其耐点蚀能力,但中高铬铁素体不锈钢中添加钼元素后会促进组织中形成富铬、富钼类析出相,会在一定程度上降低材料耐点蚀性能;故制定合理的热处理工艺是生产含钼类铁素体不锈钢时的重要环节。以OCr17MO2S钢种为例,研究了热处理温度750～1 050℃对材料内组织、力学性能及析出相的影响。
The addition of molybdenum in stainless steel can greatly improve its pitting resistance.However,the addition of molybdenum in medium-high chromium ferritic stainless steel promotes the formation of chromium-rich or molybdenum-rich pre cipitates in the structure,which can reduce the pitting resistance of the material to a certain extent.So the development of a suitable heat treatment process is an important part of the production of molybdenum-containing ferritic stainless steel.This paper takes the 0 Cr17 Mo2 S as an example,the effects of different heat treatment temperature 750～1 050℃on the microstructure,mechanical properties and precipitates of the material.
The addition of molybdenum in stainless steel can greatly improve its pitting resistance.However,the addition of molybdenum in medium-high chromium ferritic stainless steel promotes the formation of chromium-rich or molybdenum-rich pre cipitates in the structure,which can reduce the pitting resistance of the material to a certain extent.So the development of a suitable heat treatment process is an important part of the production of molybdenum-containing ferritic stainless steel.This paper takes the 0 Cr17 Mo2 S as an example,the effects of different heat treatment temperature 750～1 050℃on the microstructure,mechanical properties and precipitates of the material.
引文
[1]孙增淼,姜方,白李国,等.3Cr13线材耐蚀性改善与研究[J].北京:第十一届中国钢铁年会论文集,2017:200-205.
[2]屈华鹏,朗宇平,陈海涛,等.热处理及Mo、Nb含量对00Cr22Mo2Nb铁素体不锈钢组织和性能的影响[J].金属热处理,2015,40(8):20-25.
[3]刘向艳,杨建华,唐,等.退火温度对刃具钢6CrW2Si组织和硬度的影响[J].特殊钢,2018,39(4):63-65.
[4]李见.材料科学基础[M].北京:冶金工业出版社,2006:173-175.
[5]康喜范.铁素体不锈钢[M].北京:冶金工业出版社,2012:31-48.
[2]屈华鹏,朗宇平,陈海涛,等.热处理及Mo、Nb含量对00Cr22Mo2Nb铁素体不锈钢组织和性能的影响[J].金属热处理,2015,40(8):20-25.
[3]刘向艳,杨建华,唐,等.退火温度对刃具钢6CrW2Si组织和硬度的影响[J].特殊钢,2018,39(4):63-65.
[4]李见.材料科学基础[M].北京:冶金工业出版社,2006:173-175.
[5]康喜范.铁素体不锈钢[M].北京:冶金工业出版社,2012:31-48.