Effect of Solution Temperature on Impact Property of New Co-free Maraging Steel 00Nil4Cr3Mo3Ti

Special Steel ›› 2020, Vol. 41 ›› Issue (1): 64-67.

Special Issue: 马氏体不锈钢

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Effect of Solution Temperature on Impact Property of New Co-free Maraging Steel 00Nil4Cr3Mo3Ti

Ren Yanni¹, Liu Zhouli², Yang Weiyu² , Zhao Weidong³

1 Ordos Vocational College, Ordos 017000 ；
2 Technical Center of Steel Union Co Ltd of Baotou Steel (Group) Corp of Inner Mongolia, Baotou 014010；
3 Baotou Steel (Group) Corp, Baotou 014010)

Received:2019-07-05 Online:2020-02-01 Published:2022-04-20

固溶温度对新型无钻马氏体时效钢00Nil4Cr3Mo3Ti 冲击性能的影响

任艳茹¹ , 刘周利² , 杨维宇² , 赵卫东³

1鄂尔多斯职业学院,鄂尔多斯017000;
2内蒙古包钢钢联股份有限公司技术中心，包头014010；
3包钢(集团)公司，包头014010

作者简介:任艳茹(1984-)，女，硕士(内蒙古工业大学)，讲师,2008年内蒙古工业大学(本科)毕业,材料和机械专业方面的教学与研究。

Abstract

Abstract: The effect of solid-solution temperature 750 - 1050 ℃ on impact property and hardness of 00Nil4Cr3Mo3Ti new maraging steel has been studied, the morphology of impact fracture and microstructure of unaging tested steel are observed by SEM. The results show that as solution temperature of steel is below 900 ℃, with increasing solution temperature the undissolved Laves phase in matrix gradually dissolves and impact properties increase with the increase of solution temperature of imaging and 510℃ 5h aging. As solution temperature is higher than 900 °C , the impact property of solid solution increase with the increase of solution temperature, the impact energy of steel solid-solution treated increases from 215J at 900 ℃. to 226J at 1050℃ . solution treated, but the aging impact property decrease with the increase of solution temperature, the impact energy of steel solution +510℃ 5 h aged decreases from max 62J solution treated at 900℃. to 25J solution treated at 1050℃ ,

Key words: Maraging Steel 00Nil4Cr3Mo3Ti, Solution Treatment, Aging Treatment, Impact Properties, Laves Phase ,

摘要： 研究了固溶温度750～1050℃对00Ni14Cr3Mo3Ti新型马氏体时效钢冲击性能和硬度的影响,并用扫描电镜观察试验钢冲击断口的形貌和固溶态显微组织。试验结果表明,钢的固溶温度低于900℃时,随着固溶温度的升高,基体中未溶的Laves相逐渐溶解,固溶态和510℃ 5 h时效态的冲击性能均随着固溶温度的上升而提高;固溶温度高于900℃,固溶态冲击性能随着固溶温度的上升而提高,该钢固溶态冲击功由900℃的215J增加至1050℃固溶的226J,但时效态冲击性能随着固溶温度上升而降低,510 5h时效钢的冲击功由900℃最大值62J降至1050℃固溶的25J。

关键词: 马氏体时效钢00Nil4Cr3Mo3Ti, , 固溶处理, , 时效处理, , 冲击性能, , Laves相

Ren Yanni , Liu Zhouli, Yang Weiyu , Zhao Weidong. Effect of Solution Temperature on Impact Property of New Co-free Maraging Steel 00Nil4Cr3Mo3Ti[J]. Special Steel, 2020, 41(1): 64-67.

任艳茹, 刘周利, 杨维宇, 赵卫东. 固溶温度对新型无钻马氏体时效钢00Nil4Cr3Mo3Ti 冲击性能的影响[J]. 特殊钢, 2020, 41(1): 64-67.

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Effect of Solution Temperature on Impact Property of New Co-free Maraging Steel 00Nil4Cr3Mo3Ti

固溶温度对新型无钻马氏体时效钢00Nil4Cr3Mo3Ti 冲击性能的影响

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