核电用316H奥氏体不锈钢锻件的晶粒度控制

doi:10.13251/j.issn.0254-6051.2021.04.035

摘要/Abstract

摘要： 针对316H奥氏体不锈钢锻件晶粒粗化和混晶的问题,研究了锻造温度、变形量、固溶保温温度对316H钢晶粒度的影响。结果表明:锻件晶粒度大小为芯部＞1/4直径＞表面位置;锻造温度和变形量的增加促进了动态再结晶的发生,对晶粒的细化作用十分显著,锻造温度采用1100 ℃,变形量控制在30%时,锻造后的晶粒度可达7级左右。热处理对锻件的晶粒度具有一定均匀化作用,热处理温度过高会使晶粒长大,热处理温度应控制在1040~1060 ℃范围内。

关键词: 316H不锈钢, 晶粒度, 锻造温度, 变形量, 热处理温度

Abstract: Aiming at the problem of grain coarsening and mixed grains in 316H austenitic stainless steel forgings, the effects of forging temperature, deformation and solution heat preservation temperature on grain size of 316H steel were studied. The results show that the grain size of the forging in the core is finer than that at 1/4 diameter, while that at 1/4 diameter is finer than that at the forging surface. The increase of the forging temperature and the amount of deformation promote the occurrence of dynamic recrystallization, which is very significant for the grain refinement. When the forging temperature is 1100 ℃ and with 30% deformation, the grain size after forging can reach about grade 7. The heat treatment has a certain homogenization effect on the grain size, however, too high heat treatment temperature will cause grain growth, so the heat treatment temperature should be controlled in the range of 1040-1060 ℃.

Key words: 316H stainless steel, grain size, forging temperature, deformation, heat treatment temperature

中图分类号:

TG156.94

冉熊波, 刘虹伶, 汪洪宇, 曹俊生, 梁启超, 侯超前. 核电用316H奥氏体不锈钢锻件的晶粒度控制[J]. 金属热处理, 2021, 46(4): 192-195.

Ran Xiongbo, Liu Hongling, Wang Hongyu, Cao Junsheng, Liang Qichao, Hou Chaoqian. Grain size control of 316H austenitic stainless steel forgings for nuclear power[J]. Heat Treatment of Metals, 2021, 46(4): 192-195.

参考文献

[1] 尹嵬,梁伟.热处理工艺对316H不锈钢中厚板力学性能影响研究[J].特殊钢,2019,40(1):60-62.
Yin Wei,Liang Wei.Research on the influence of heat treatment process on the mechanical properties of 316H stainless steelplate[J].Special Steel,2019,40(1):60-62.
[2] 邵春娟,米国发,许磊,等.冷速对316H大锻件固溶处理后析出相及晶间腐蚀的影响[J].金属热处理,2018,43(10):60-66.
Shao Chunjuan,Mi Guofa,Xu Lei,et al.Effect of cooling rate on precipitation phase and intergranular corrosion after solution treatment of 316H large forgings[J].Heat Treatment of Metals,2018,43(10):60-66.
[3] 余江山,石玉萍,陈红宇,等CAP1400主管道整体锻造成形和晶粒度控制研究[J].大型铸锻件,2017(5):37-38,45.
Yu Jiangshan,Shi Yuping,Chen Hongyu,et al.Research on CAP1400 main pipe integral forging forming and grain size control[J].Large Castings and Forgings,2017(5):37-38,45.
[4] 杨晓雅,何岸,谢甘霖,等.核电用奥氏体不锈钢的动态再结晶行为[J].工程科学学报,2015,37(11):1447-1455.
Yang Xiaoya,He An,Xie Ganlin,et al.Dynamic recrystallization behavior of austenitic stainless steel for nuclear power[J].Journal of Engineering Sciences,2015,37(11):1447-1455.
[5] 王林,张明桥,黄小飞,等.锻造工艺参数对316LN不锈钢动态再结晶的影响[J].热加工工艺,2016,45(7):151-154.
Wang Lin,Zhang Mingqiao,Huang Xiaofei,et al.Effect of forging process parameters on dynamic recrystallization of 316LN stainless steel[J].Hot Processing Technology,2016,45(7):151-154.
[6] 程晓农,桂香,罗锐,等.核电装备用奥氏体不锈钢的高温本构模型及动态再结晶[J].材料导报,2019,33(11):1775-1781.
Cheng Xiaonong,Gui Xiang,Luo Rui,et al.High temperature constitutive model and dynamic recrystallization of austenitic stainless steel for nuclear power equipment[J].Materials Guide,2019,33(11):1775-1781.
[7] 乔思凡,赵志伟,许少言,等.固溶温度对316L不锈钢性能的影响[J].辽宁工业大学学报(自然科学版),2017,37(3):177-179,189.
Qiao Sifan,Zhao Zhiwei,Xu Shaoyan,et.al.The effect of solution temperature on the properties of 316L stainless steel[J].Journal of Liaoning University of Technology (Natural Science Edition),2017,37(3):177-179,189.
[8] 卢建玉,何西扣,钱志平.奥氏体不锈钢316L在ECAP过程中的组织演化及力学性能[J].金属热处理,2020,45(1):218-221.
Lu Jianyu,He Xikou,Qian Zhiping.Microstructure evolution and mechanical properties of austenitic stainless steel 316L during ECAP process[J].Heat Treatment of Metals,2020,45(1):218-221.
[9] 张铭显,杨滨,王胜龙,等.形变热处理对316L奥氏体不锈钢晶界特征分布的影响[J].金属热处理,2016,41(4):55-58.
Zhang Mingxian,Yang Bin,Wang Shenglong,et al.Effect of deformation heat treatment on the grain boundary characteristic distribution of 316L austenitic stainless steel[J].Heat Treatment of Metals,2016,41(4):55-58.
[10] 吴明华,冯惠伟,高亦斌.终加工温度对奥氏体不锈钢晶粒度的影响[J].浙江冶金,2016(S1):23-26.
Wu Minghua,Feng Huiwei,Gao Yibin.The effect of final processing temperature on the grain size of austenitic stainless steel[J].Zhejiang Metallurgy,2016(S1):23-26.
[11] 薛忍让,宋志刚,郑文杰,等固溶温度对316LN不锈钢组织及力学性能的影响[J].金属热处理,2013,38(4):88-91.
Xue Renrang.Song Zhigang,Zheng Wenjie,et al.The effect of solution temperature on the structure and mechanical properties of 316LN stainless steel[J]. Heat Treatment of Metals,2013,38(4):88-91.

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