Nb微合金化对18CrNiMo7-6钢奥氏体晶粒长大的影响

doi:10.13251/j.issn.0254-6051.2021.09.009

金属热处理 ›› 2021, Vol. 46 ›› Issue (9): 53-57.DOI: 10.13251/j.issn.0254-6051.2021.09.009

Nb微合金化对18CrNiMo7-6钢奥氏体晶粒长大的影响

王自敏, 杨志强, 胡芳忠, 汪开忠, 丁雷

马鞍山钢铁股份有限公司技术中心, 安徽马鞍山 243000

收稿日期:2021-05-23 出版日期:2021-09-25 发布日期:2021-12-09
作者简介:王自敏(1991—),男,助理工程师,硕士,主要研究方向为特钢产品开发,E-mail:1452563363@qq.com
基金资助:
工信部工业强基项目(招标编号:TC180A3Y1/分包号:14)

Effect of Nb microalloying on austenite grain growth of 18CrNiMo7-6 steel

Wang Zimin, Yang Zhiqiang, Hu Fangzhong, Wang Kaizhong, Ding Lei

Technology Center, Ma'anshan Iron and Steel Co., Ltd., Ma'anshan Anhui 243000, China

Received:2021-05-23 Online:2021-09-25 Published:2021-12-09

摘要/Abstract

摘要： 对比研究了含Nb和不含Nb的18CrNiMo7-6试验钢在加热温度(900~1100 ℃)和保温时间(1~8 h)下的奥氏体晶粒长大行为,建立了两种试验钢的奥氏体晶粒长大的数学模型。结果表明,随着加热温度的升高和保温时间的延长,试验钢的奥氏体晶粒逐渐长大,相同加热条件下18CrNiMo7-6-Nb钢的奥氏体晶粒尺寸要小于18CrNiMo7-6钢。将试验钢的晶粒长大过程分为抑制长大阶段(900~1000 ℃)和自由长大阶段(1000~1100 ℃),分别建立了适用于含Nb和不含Nb的两种18CrNiMo7-6试验钢的晶粒长大数学模型。

关键词: Nb微合金化, 18CrNiMo7-6钢, 奥氏体晶粒长大, 数学模型

Abstract: Austenite grain growth behavior of the 18CrNiMo7-6 steels with Nb and without Nb heated at 900-1100 ℃ for 1-8 h was studied, and the mathematical models of the austenite grain growth of the two tested steels were established. The results show that with the increase of heating temperature and holding time, the austenite grain size of the tested steels increases gradually, and that of the 18CrNiMo7-6 steel with Nb is smaller than that without Nb under the same heating condition. By characterizing the grain growth process of the tested steels as inhibited growth stage (900-1000 ℃) and free growth stage (1000-1100 ℃), more suitable grain growth mathematical models are established respectively for the tested steels with Nb and without Nb.

Key words: Nb microalloying, 18CrNiMo7-6 steel, austenite grain growth, mathematical model

中图分类号:

TG142.33

王自敏, 杨志强, 胡芳忠, 汪开忠, 丁雷. Nb微合金化对18CrNiMo7-6钢奥氏体晶粒长大的影响[J]. 金属热处理, 2021, 46(9): 53-57.

Wang Zimin, Yang Zhiqiang, Hu Fangzhong, Wang Kaizhong, Ding Lei. Effect of Nb microalloying on austenite grain growth of 18CrNiMo7-6 steel[J]. Heat Treatment of Metals, 2021, 46(9): 53-57.

参考文献

[1]马莉, 王毛球, 董瀚. 微合金化渗碳齿轮钢的研究进展[J]. 特殊钢, 2008, 29(4): 28-30.
Ma Li, Wang Maoqiu, Dong Han. Research progress in microalloyed case-hardened steels for gear[J]. Special Steel, 2008, 29(4): 28-30.
[2]杨延辉, 王毛球, 陈敬超, 等. 高温渗碳齿轮钢的研究进展[J]. 特殊钢, 2013, 34(1): 22-24.
Yang Yanhui, Wang Maoqiu, Chen Jingchao, et al. Research progress in gear steels for high temperature carburization[J]. Special Steel, 2013, 34(1): 22-24.
[3]Morais R F D, Reguly A, Almeida L H D. Transmission electron microscopy characterization of a Nb microalloyed steel for carburizing at high temperatures[J]. Journal of Materials Engineering & Performance, 2006, 15(4): 494-498.
[4]Alogab K A, Matlock D K, Speer J G, et al. The effects of heating rate on austenite grain growth in a Ti-modified SAE 8620 steel with controlled niobium additions[J]. ISIJ International, 2007, 47(7): 1034-1041.
[5]张志波, 孙新军, 刘清友, 等. 均热过程中低碳钢奥氏体晶粒长大规律研究[J]. 材料热处理学报, 2008, 29(5): 89-92.
Zhang Zhibo, Sun Xinjun, Liu Qingyou, et al. Study on austenite grain growth of a low carbon steel in heating process[J]. Transactions of Materials and Heat Treatment, 2008, 29(5): 89-92.
[6]Beck P A, Kremer J C, Demer L J, et al. Grain growth in high-purity aluminum and in an aluminum-magnesium alloy[J]. Metall and Materials Trans, 1948, 175: 372-394.
[7]Renata S, Henryk A, Adrian A. Effect of nitrogen and vanadium on austenite grain growth kinetics of a low alloy steel[J]. Materials Characterization, 2006, 56(4): 340-347.
[8]Sellars C M, Whiteman J A. Recrystallization and grain growth in hot rolling[J]. Metal Science, 1979, 3-4: 87-194.
[9]徐文帅, 王春旭, 厉勇, 等. 40CrNi2MoE钢奥氏体晶粒长大的数学模型[J]. 材料热处理学报, 2014, 35(8): 232-238.
Xu Wenshuai, Wang Chunxu, Li Yong, et al. Mathematical models of austenite grain growth in 40CrNi2MoE steel[J]. Transactions of Materials and Heat Treatment, 2014, 35(8): 232-238.
[10]李建凯, 厉勇, 王春旭, 等. A315钢奥氏体晶粒长大的数学模型[J]. 金属热处理, 2016, 41(4): 183-189.
Li Jiankai, Li Yong, Wang Chunxu, et al. Mathematical model of austenite grain growth for A315 steel[J]. Heat Treatment of Metals, 2016, 41(4): 183-189.
[11]程四华, 周德, 孔祥涛, 等. Nb微合金化对高碳钢奥氏体晶粒生长的影响[J]. 金属热处理, 2014, 39(5): 54-57.
Cheng Sihua, Zhou De, Kong Xiangtao, et al. Effect of Nb microalloying on austenitic grain growth of high carbon steel[J]. Heat Treatment of Metals, 2014, 39(5): 54-57.

[1]	陈强, 陈林芳, 杨明华. 18CrNiMo7-6钢的可控气氛高温渗碳工艺[J]. 金属热处理, 2022, 47(4): 231-239.
[2]	杨劼, 任慧平, 刘宗昌. 15Cr12CuSiMoMn钢的奥氏体晶粒长大动力学[J]. 金属热处理, 2022, 47(2): 53-58.
[3]	胡芳忠, 杨少朋, 金国忠, 胡乃悦, 汪开忠, 杨志强, 陈世杰. 淬火温度对Nb微合金化齿轮钢18CrNiMo7-6组织演变及力学性能的影响[J]. 金属热处理, 2022, 47(2): 105-111.
[4]	杨晓伟, 陈焕德, 周云, 张宇. 轧制工艺对V-Nb微合金化HRB600E钢筋组织及性能的影响[J]. 金属热处理, 2021, 46(8): 150-155.
[5]	谭晓蒙, 田峰, 乔欣, 郭心爱. 带式输送机减速机高速轴断裂失效分析[J]. 金属热处理, 2021, 46(6): 253-255.
[6]	谢章龙, 陈锋, 胡其龙, 王兆华. 奥氏体化及回火温度对E550级低温钢组织和性能的影响[J]. 金属热处理, 2021, 46(1): 65-69.
[7]	徐慧, 李天生. 回火温度对Nb微合金化NM500钢组织和性能的影响[J]. 金属热处理, 2020, 45(9): 116-120.
[8]	杨静, 王永坤, 刘高松, 冉启燕, 杨欢, 商荣凯. 某型智能柴油机凸轮轴热处理工艺的开发[J]. 金属热处理, 2020, 45(10): 85-89.
[9]	朱　敏，朱万全，帅林飞，马国强，吴桂林. 表面纳米化过程中18CrNiMo7-6钢的软化与硬化[J]. 金属热处理, 2019, 44(1): 152-156.
[10]	李珊珊1,2, 沈俊昶2, 朱心昆1, 苏航2. 铌微合金化对调质型9NiCrMo钢强韧性的影响[J]. 金属热处理, 2016, 41(2): 7-10.
[11]	韩毅，付天亮，邓想涛，王昭东. 中厚钢板正火后快速冷却工艺控制系统[J]. 金属热处理, 2016, 41(12): 158-163.
[12]	郁春锋1，李敬2，褚祥治2，杨跃辉2，苑少强2. X120管线钢中第二相回溶及其对奥氏体晶粒长大的影响[J]. 金属热处理, 2016, 41(10): 95-98.
[13]	周国十，张红梅，贾宏斌. X100管线钢奥氏体晶粒长大行为[J]. 金属热处理, 2015, 40(9): 71-75.
[14]	詹华1，潘红波2，刘永刚1，迟志涛1，肖洋洋1. 合金元素与退火工艺对冷轧双相钢组织和性能的影响[J]. 金属热处理, 2015, 40(5): 20-24.
[15]	周光杰, 刘晓玮, 赵爱民, 武会宾. 核电压力容器用钢SA533B的变形抗力及其数学模型[J]. 金属热处理, 2014, 39(6): 50-53.

Nb微合金化对18CrNiMo7-6钢奥氏体晶粒长大的影响

Effect of Nb microalloying on austenite grain growth of 18CrNiMo7-6 steel

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价