丝杠用1Cr15Ni4Mo2CuN不锈钢热处理温度场的有限元数值模拟

doi:10.13251/j.issn.0254-6051.2023.04.038

金属热处理 ›› 2023, Vol. 48 ›› Issue (4): 245-252.DOI: 10.13251/j.issn.0254-6051.2023.04.038

丝杠用1Cr15Ni4Mo2CuN不锈钢热处理温度场的有限元数值模拟

王中琳^1,2, 李权², 龚志华¹, 包汉生², 雍兮^2,3

1.内蒙古科技大学材料与冶金学院, 内蒙古包头 014010;
2.钢铁研究总院有限公司特殊钢研究院, 北京 100081;
3.中国钢研科技集团有限公司数字化研发中心, 北京 100081

收稿日期:2022-09-23 修回日期:2022-12-27 发布日期:2023-05-27
通讯作者: 龚志华,教授,E-mail: gzh_2001@163.com
作者简介:王中琳(1996—),男,硕士研究生,主要研究方向为不锈钢、钴基高温合金,E-mail:1239485333@qq.com。

Finite element numerical simulation of heat treatment temperature field of 1Cr15Ni4Mo2CuN stainless steel for screw

Wang Zhonglin^1,2, Li Quan², Gong Zhihua¹, Bao Hansheng², Yong Xi^2,3

1. School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou Inner Mongolia 014010, China;
2. Research Institute of Special Steels, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China;
3. Material Digital R＆D Center, China Iron and Steel Research Institute Group, Beijing 100081, China

Received:2022-09-23 Revised:2022-12-27 Published:2023-05-27

摘要/Abstract

摘要： 基于ANSYS有限元平台,结合热物性参数的温度敏感性和现行热处理工艺对1Cr15Ni4Mo2CuN钢不同尺寸丝杠工件在淬火加热和深冷处理过程中的温度场变化规律进行了模拟,通过显微组织观察、XRD和硬度测试分析了不同深冷处理时间下工件的残留奥氏体含量。结果表明,φ40、φ45和φ50 mm工件在1070 ℃加热时的温度均一时间分别为1100、1294和1446 s;φ40 mm工件在-196 ℃深冷79 s时整体温度降至Mf点以下,此时工件中的残留奥氏体已大量转变为马氏体,硬度明显升高,残留奥氏体含量随深冷时间延长而降低,但深冷1800 s后,继续延长深冷时间时残留奥氏体含量变化不明显。

关键词: 数值模拟, 温度场, 温度均一时间, 丝杠, 深冷处理

Abstract: Based on the ANSYS finite element platform and combined with the temperature sensitivity of thermophysical parameters and the current heat treatment process, the temperature field variation of the 1Cr15Ni4Mo2CuN steel screw specimen with different sizes during quenching and cryogenic treatment was simulated, and the retained austenite content of the specimen under different cryogenic time was analyzed by means of microstructure observation, XRD and hardness test. The results show that the temperature uniformity time during heating at 1070 ℃ of the φ40, φ45, φ50 mm specimen is 1100, 1294, 1446 s, respectively; the whole temperature of the φ40 mm specimen drops below the Mf temperature when cryogenic at -196 ℃ for 79 s, meanwhile, the retained austenite of the workpiece has been greatly transformed into martensite, which leads to the siqnificant inorease of hardness. With the extension of cryogenic time, the content of retained austenite decreases, but after cryogenic for 1800 s, the content of retained austenite does not change significantly.

Key words: numerical simulation, temperature field, temperature uniformity time, screw, cryogenic treatment

中图分类号:

TG156

王中琳, 李权, 龚志华, 包汉生, 雍兮. 丝杠用1Cr15Ni4Mo2CuN不锈钢热处理温度场的有限元数值模拟[J]. 金属热处理, 2023, 48(4): 245-252.

Wang Zhonglin, Li Quan, Gong Zhihua, Bao Hansheng, Yong Xi. Finite element numerical simulation of heat treatment temperature field of 1Cr15Ni4Mo2CuN stainless steel for screw[J]. Heat Treatment of Metals, 2023, 48(4): 245-252.

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丝杠用1Cr15Ni4Mo2CuN不锈钢热处理温度场的有限元数值模拟

Finite element numerical simulation of heat treatment temperature field of 1Cr15Ni4Mo2CuN stainless steel for screw

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