双固溶体处理对奥氏体锰钢微观结构变化的影响

IF 0.6 4区 综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES Chiang Mai Journal of Science Pub Date : 2023-11-30 DOI:10.12982/cmjs.2023.060
Arif Tjahjono, Nadya Salsabila Frendyta, P. A. Paristiawan
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引用次数: 0

摘要

为了消除晶界上的碳化物相(FeMn)3C,研究人员进行了双重固溶处理。首先将钢加热到 1000°C,保温 100 分钟,然后进行 28% 的热轧。此外,钢材从室温重新加热至 1100°C,保温时间为 20 分钟,然后进行双固溶处理,即从室温逐渐加热至 730°C,保温时间为 30 分钟,然后继续加热至 1000°C,保温时间为 15 分钟,最后用水淬火。SEM 图谱显示钢中含有 Fe、Mn、C、S、Si 和 Ni 元素。XRD 表征显示,双溶液处理过程没有改变 Fe3O4、γ-Mn、γ-Fe、α-Fe 和 MnO2 的组成相,但将结晶尺寸从 0.0247 μm 减小到 0.0223 μm。根据光学显微镜和扫描电镜的观察,可以看出双溶液处理过程还能将晶粒尺寸从 5.33 μm 减小到 1.30 μm,并去除晶界上的碳化物 (FeMn)3C 相,同时成功地将形态从裂纹区转变为凹陷区。
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The Effect of Double Solution Treatment on Changes in the Microstructure of Austenitic Manganese Steel
R esearch has been carried out to eliminate of the carbide phase (FeMn)3C at the grain boundaries through a double solution treatment. The process begins, which is heating the steel to a temperature of 1000°C with a holding time of 100 minutes, then hot rolling is carried out by 28%. Furthermore, the steel reheated from room temperature to 1100°C with a holding time of 20 minutes, followed by a double solution treatment process, which is heating the steel gradually from room temperature to 730°C with a holding time of 30 minutes, then heating is continued to a temperature of 1000°C with a holding time of 15 minutes, and quenching by water. SEM mapping shows steel contains Fe, Mn, C, S, Si and Ni elements. XRD characterization showed that the double solution treatment process did not change the constituent phases in the form of Fe3O4, γ-Mn, γ-Fe, α-Fe and MnO2, but reduce the crystalline size from 0.0247 to 0.0223 μm. Based on optical microscope and SEM observations, it can be seen that the double solution treatment process was also able to reduce the grain size from 5.33 to 1.30 μm and remove the carbide (FeMn)3C phase at the grain boundaries, as well as successfully change the morphology from cleavage areas to dimple areas.
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来源期刊
Chiang Mai Journal of Science
Chiang Mai Journal of Science MULTIDISCIPLINARY SCIENCES-
CiteScore
1.00
自引率
25.00%
发文量
103
审稿时长
3 months
期刊介绍: The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so.
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