Q960E超高强钢板控温淬火试验研究与应用

doi:10.12068/j.issn.1005-3026.2022.11.007

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (11): 1570-1574.DOI: 10.12068/j.issn.1005-3026.2022.11.007

Q960E超高强钢板控温淬火试验研究与应用

杨森宇¹，付天亮¹，朱美君²，王昭东¹

(1. 东北大学轧制技术及连轧自动化国家重点实验室，辽宁沈阳110819; 2. 南京钢铁股份有限公司，江苏南京210035)

发布日期:2022-12-06
通讯作者: 杨森宇
作者简介:杨森宇(1995-)，男，辽宁盘锦人，东北大学硕士研究生；付天亮(1981-)，男，黑龙江阿城人，东北大学教授，博士生导师；王昭东(1968-)，男，安徽淮南人，东北大学教授，博士生导师.
基金资助:
辽宁省人才计划项目(XLYC2007039).

Experimental Study and Application of Temperature-Controlled Quenching for Q960E Ultra High Strength Steel Plates

YANG Sen-yu¹， FU Tian-liang¹， ZHU Mei-jun²， WANG Zhao-dong¹

1. State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China; 2. Nanjing Iron & Steel Co.， Ltd.， Nanjing 210035， China.

Published:2022-12-06
Contact: FU Tian-liang
About author:-
Supported by:
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摘要/Abstract

摘要： 利用宽厚板厂辊式淬火装备，对比分析了控温淬火和常规淬火工艺对不同厚度Q960E工程机械用超高强钢板组织性能的影响，获得了两种淬火工艺下钢板淬火后组织和力学性能.结果显示:20，30和40mm 厚Q960E钢板控温淬火至终冷表面温度40℃，可节约淬火装备用水量40%以上，淬后钢板表面质量优异，钢板平直度≤3mm/m.与常规辊式淬火组织明显不同，控温淬火后，钢板发生余热自回火，其近表面、1/4厚度和1/2厚度位置处均为自回火马氏体组织.Q960E钢板控温淬火后综合力学性能优异，平均维氏硬度≥420，略高于常规辊式淬火，钢板屈服强度>980MPa，抗拉强度>1000MPa，伸长率＞14%，钢板塑性良好，-40℃ 冲击功>44J.

关键词: 超高强钢板;控温淬火;终冷温度;常规辊式淬火;组织性能

Abstract: The influence of temperature-controlled quenching and conventional quenching on the microstructure and mechanical properties of Q960E ultra-high-strength steel plates， with a thickness of 20， 30 and 40mm， was analyzed using the roller-type jet quenching facility. The microstructure and properties of steel plates under two quenching process conditions were obtained. The results revealed that， when the quenching termination temperature is 40℃， more than 40% of the water consumption can be saved. The surface quality of quenched plates is significantly improved and the flatness is ≤3mm/m. The microstructure of the experimental steel plates processed by temperature-controlled quenching consists of auto-tempered martensite， which is different from the conventional roller-type quenching. The steel plates exhibit excellent comprehensive mechanical properties after temperature-controlled quenching with an average Vickers hardness of ≥420， yield strength of >980MPa， tensile strength of >1000MPa， elongation of >14%. The impact energy is more than 44 J at -40℃.

Key words: ultra-high-strength steel plate; temperature-controlled quenching; final cooling temperature; conventional roller-type quenching; microstructural and mechanical properties

中图分类号:

TG156.31

杨森宇，付天亮，朱美君，王昭东. Q960E超高强钢板控温淬火试验研究与应用[J]. 东北大学学报（自然科学版）, 2022, 43(11): 1570-1574.

YANG Sen-yu， FU Tian-liang， ZHU Mei-jun， WANG Zhao-dong. Experimental Study and Application of Temperature-Controlled Quenching for Q960E Ultra High Strength Steel Plates[J]. Journal of Northeastern University(Natural Science), 2022, 43(11): 1570-1574.

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Q960E超高强钢板控温淬火试验研究与应用

Experimental Study and Application of Temperature-Controlled Quenching for Q960E Ultra High Strength Steel Plates

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