[1]单爱丽,邢书明,宋文明,等.液态模锻高铬铸铁亚温淬火工艺研究[J].常州大学学报(自然科学版),2023,35(01):1-9.[doi:10.3969/j.issn.2095-0411.2023.01.001]
　SHAN Aili,XING Shuming,SONG Wenming,et al.Study on intercritical quenching process of high chromium cast iron by melted metal die forging[J].Journal of Changzhou University(Natural Science Edition),2023,35(01):1-9.[doi:10.3969/j.issn.2095-0411.2023.01.001]
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液态模锻高铬铸铁亚温淬火工艺研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第35卷
期数:
2023年01期
页码:
1-9
栏目:
材料科学与工程：液态模锻专题
出版日期:
2023-01-28

文章信息/Info

Title:
Study on intercritical quenching process of high chromium cast iron by melted metal die forging
文章编号:
2095-0411(2023)01-0001-09
作者:
单爱丽1; 邢书明1; 宋文明2; 吴伟2
(1.北京交通大学机械与电子控制工程学院,北京100044;2.萍乡盛鑫机械有限公司,江西萍乡337200)
Author(s):
SHAN Aili1;  XING Shuming1;  SONG Wenming2;  WU Wei2
(1.School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China; 2.Pingxiang Shengxin Machinery Co., Ltd., Pingxiang 337200, China)
关键词:
液态模锻;  高铬铸铁;  亚温淬火;  硬度;  冲击韧性
Keywords:
melted metal die forging;  high chromium cast iron;  intercritical quenching;  hardness;  impact toughness
分类号:
TG 163
DOI:
10.3969/j.issn.2095-0411.2023.01.001
文献标志码:
A
摘要:
对比压128 MPa液态模锻工艺制备的KmTBCr20Mo合金进行亚温淬火热处理工艺研究。结果表明,亚温热处理工艺能改变液态模锻高铬铸铁组织的形貌尺寸与数量,改变其洛氏硬度与冲击韧性。500 ℃亚温淬火相比于无热处理的对照组马氏体基体增多,基体析出小颗粒二次碳化物,同时生成了较多形状规则、断续块状分布的M7C3型碳化物,硬度和韧性均有明显提高,此温度为最佳亚温淬火温度。当淬火温度为530 ℃和550 ℃时,共晶团与晶界的碳化物存在微裂纹,形状粗大且不规则,洛氏硬度较高但韧性显著降低。当淬火温度为580 ℃和630 ℃时,马氏体基体形状粗大,碳化物呈针状与小块状分布,容易割裂基体,洛氏硬度下降,韧性显著降低。
Abstract:
The heat treatment process of KmTBCr20Mo alloy prepared by 128 MPa Melted Metal Die Forging under different intercritical quenching was studied. The results show that the heat treatment process can change the morphology, size and quantity of the liquid die forging high chromium cast iron, and change its hardness and impact toughness. Compared with the control group without heat treatment, the martensite matrix at the quenching temperature of 500 ℃ increased,small particles of secondary carbide precipitated from the matrix, and more M7C3 carbides with regular shape and intermittent distribution were transformed. The hardness and toughness were significantly improved, and this temperature is the best intercritical quenching temperature. When the quenching temperature at 530 ℃ and 550 ℃, the carbides of eutectic group and grain boundaries had irregular shape, microcracks and rough shape, with higher hardness but lower toughness. When the quenching temperature at 580 ℃ and 630 ℃, the martensite matrix was coarse, and the carbides were needle-like morphology and small pieces distributed, which were easy to separate the matrix. The hardness and toughness were reduced significantly.

参考文献/References:

[1] KADOWAKI M, MUTO I, KATAYAMA H, et al. Effectiveness of an intercritical heat-treatment on localized corrosion resistance at the microstructural boundaries of medium-carbon steels[J]. Corrosion Science, 2019, 154: 159-177.
[2] 李永存. 高铬铸铁/低碳钢复合材料的制备及性能研究[D]. 沈阳: 东北大学, 2019.
[3] 周浩. 高铬铸铁的热处理工艺及其冲击磨料磨损研究[D]. 长沙: 湖南大学, 2014.
[4] 王玉江, 宋百隆, 魏世丞, 等. 含碳量及热处理工艺对高铬铸铁组织与耐磨性的影响[J]. 金属热处理, 2018, 43(2): 30-34.
[5] 邢书明, 武彤, 孙鸿基, 等. 变形铝合金液态模锻及其研究进展[J]. 常州大学学报(自然科学版), 2022, 34(6): 1-8.
[6] 王崇. 高铬铸铁抗磨产品热处理方法与工艺优化[D]. 合肥: 合肥工业大学, 2014.
[7] 谭磊. 热处理及合金元素对高铬铸铁组织与性能的影响研究[D]. 湘潭: 湘潭大学, 2015.
[8] 刘宇诚. Cr20高铬铸铁的热处理工艺及磨粒磨损研究[D]. 长沙: 湖南大学, 2018.
[9] 索忠源, 付立铭, 张志浩, 等. 热处理对Cr20高铬铸铁组织及性能的影响[J]. 金属热处理, 2018, 43(7): 184-187.
[10] DAS R, RAY K K, CHAKRABARTI A K. Semisolid heat treatment of chromium cast iron[J]. International Journal of Cast Metals Research, 2006, 19(2): 130-133.
[11] WIENGMOON A, PEARCE J T H, CHAIRUANGSRI T. Relationship between microstructure, hardness and corrosion resistance in 20wt[J]. Materials Chemistry and Physics, 2011, 125(3): 739-748.
[12] OANH N T H, VIET N H. Precipitation of M23C6 secondary carbide particles in Fe-Cr-Mn-C alloy during heat treatment process[J]. Metals, 2020, 10(2): 157.
[13] WANG J, XIONG J, FAN H Y, et al. Effects of high temperature and cryogenic treatment on the microstructure and abrasion resistance of a high chromium cast iron[J]. Journal of Materials Processing Technology, 2009, 209(7): 3236-3240.

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备注/Memo

备注/Memo:
收稿日期: 2022-10-22。
作者简介: 单爱丽(1996—), 女, 安徽宿州人, 硕士生。通信联系人: 邢书明(1961—), E-mail: smxing@bjtu.edu.cn
更新日期/Last Update: 1900-01-01