Article(id=1199809969773183941, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199809968984650567, articleNumber=1009-5438(2022)05-0001-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1640102400000, receivedDateStr=2021-12-22, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1763986588184, onlineDateStr=2025-11-24, pubDate=1666627200000, pubDateStr=2022-10-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763986588184, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763986588184, creator=13701087609, updateTime=1763986588184, updator=13701087609, issue=Issue{id=1199809968984650567, tenantId=1146029695717560320, journalId=1185652524569653253, year='2022', volume='48', issue='5', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763986587997, creator=13701087609, updateTime=1764034198143, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200009660469183174, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199809968984650567, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200009660469183175, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199809968984650567, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1, endPage=4, ext={EN=ArticleExt(id=1199809970511381449, articleId=1199809969773183941, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Experimental Study on Heat Treatment of High Manganese Austenitic Steel, columnId=1187100783049851249, journalTitle=Science & Technology of Baotou Steel, columnName=Expert Forum, runingTitle=null, highlight=null, articleAbstract=

In the paper, it is introduced the experimental study on heat treatment at a series of temperatures of 1 000~1 250 ℃ was carried out by taking the Fe-Mn-Al-C high manganese austenitic test steel as object of study. The surface oxide layer, microstructure and grain size of test steel were detected and analyzed separately. The results showed that the thickness of surface oxide layer increased with heating temperature increased, there was grain boundary oxidation when heating temperature was above 1 150 ℃; the grain size of test steel increased with heating temperature increased, there was mixed crystal at 1 150 ℃ and the grain size increased obviously at 1 250 ℃.

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文章以Fe-Mn-Al-C系高锰奥氏体试验钢为研究对象,开展1 000~1 250 ℃系列温度的热处理试验研究,分别对试验钢的表面氧化层及内部组织、晶粒度进行了检测分析。研究结果表明,随着加热温度升高,试验钢的表面氧化层增厚,当加热温度高于1 150 ℃时,试验钢的表面出现晶界氧化;随着加热温度升高,试验钢的晶粒长大,在1 150 ℃出现混晶,1 250 ℃晶粒明显增大。

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李智丽(1971-),女,辽宁省盘锦市人,硕士,正高级工程师,现从事金属材料热处理及物理检测工作。

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李智丽(1971-),女,辽宁省盘锦市人,硕士,正高级工程师,现从事金属材料热处理及物理检测工作。

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李智丽(1971-),女,辽宁省盘锦市人,硕士,正高级工程师,现从事金属材料热处理及物理检测工作。

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高锰奥氏体钢的热处理试验研究
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李智丽 , 岳祎楠 , 靳燕
包钢科技 | 专家论坛 2022,48(5): 1-4
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包钢科技 | 专家论坛 2022, 48(5): 1-4
高锰奥氏体钢的热处理试验研究
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李智丽, 岳祎楠, 靳燕
作者信息
  • 内蒙古包钢钢联股份有限公司技术中心, 内蒙古 包头 014010
  • 李智丽(1971-),女,辽宁省盘锦市人,硕士,正高级工程师,现从事金属材料热处理及物理检测工作。

Experimental Study on Heat Treatment of High Manganese Austenitic Steel
Zhi-li Li, Yi-nan Yue, Yan Jin
Affiliations
  • Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
出版时间: 2022-10-25
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文章以Fe-Mn-Al-C系高锰奥氏体试验钢为研究对象,开展1 000~1 250 ℃系列温度的热处理试验研究,分别对试验钢的表面氧化层及内部组织、晶粒度进行了检测分析。研究结果表明,随着加热温度升高,试验钢的表面氧化层增厚,当加热温度高于1 150 ℃时,试验钢的表面出现晶界氧化;随着加热温度升高,试验钢的晶粒长大,在1 150 ℃出现混晶,1 250 ℃晶粒明显增大。

奥氏体高锰钢  /  热处理  /  氧化层  /  晶粒度

In the paper, it is introduced the experimental study on heat treatment at a series of temperatures of 1 000~1 250 ℃ was carried out by taking the Fe-Mn-Al-C high manganese austenitic test steel as object of study. The surface oxide layer, microstructure and grain size of test steel were detected and analyzed separately. The results showed that the thickness of surface oxide layer increased with heating temperature increased, there was grain boundary oxidation when heating temperature was above 1 150 ℃; the grain size of test steel increased with heating temperature increased, there was mixed crystal at 1 150 ℃ and the grain size increased obviously at 1 250 ℃.

austenitic high manganese steel  /  heat treatment  /  oxide layer  /  grain size
李智丽, 岳祎楠, 靳燕. 高锰奥氏体钢的热处理试验研究. 包钢科技, 2022 , 48 (5) : 1 -4 .
Zhi-li Li, Yi-nan Yue, Yan Jin. Experimental Study on Heat Treatment of High Manganese Austenitic Steel[J]. Science & Technology of Baotou Steel, 2022 , 48 (5) : 1 -4 .
高锰钢经适当成分设计后,表现出优异的强度、塑性、低温韧性、加工硬化性以及抗冲击安全性,在汽车、低温容器、建筑等领域展示出广阔的应用潜力[1-2]。但高锰钢因其成分设计的特殊性,在连铸和轧制等生产过程中存在困难,钢材表面容易产生缺陷[3]。本文以Fe-Mn-Al-C系高锰奥氏体试验钢为研究对象,开展了加热温度对试验钢表面和内部晶粒的影响研究。
本文中所用的材料为Fe-18Mn-2Al-0.6C系高锰奥氏体试验钢。使用钼丝切割机将试验钢切割成10 mm×10 mm×20 mm的块状试样。采用RX4-150-13型高温箱式电阻炉对试样进行热处理,加热温度分别为1 000 ℃、1 050 ℃、1 100 ℃、1 150℃、1 200 ℃、1 250 ℃。待炉温升至目标加热温度,将试样放入加热炉中保温1 h后取出水冷。热处理后的试样从长边的中间部位切开,磨制金相样进行表层和内部晶粒的观察分析。
将热处理后的试样切开磨制金相试样,分别用蔡司金相显微镜和蔡司扫描电镜进行观察分析。对应的热处理加热温度依次为1 000 ℃、1 050 ℃、1 100 ℃、1 150 ℃、1 200 ℃、1 250 ℃。
不同热处理温度试验钢表面氧化层形貌见图1。如图1(a)、(b)所示,1 000 ℃和1 050 ℃加热温度试样表面无明显氧化层;图1(c)为1 100 ℃加热温度试样,表面有轻微的氧化层,厚度约5 μm;图1(d)为1 150 ℃加热温度试样,表面氧化层厚度约44 μm;图1(e)为1 200 ℃加热温度试样,表面氧化层厚度约82 μm;图1(f)为1 250 ℃加热温度试样,表面氧化层厚度约122 μm。
随着加热温度的提高,试验钢表面氧化层逐渐增厚,如图1(d)、(e)、(f)所示,加热温度在1 150 ℃以上,试验钢的氧化层可见大量颗粒状氧化产物。对其进行扫描电镜能谱分析,靠近外表面的浅灰色颗粒成分为O、Mn、Fe元素,灰黑色颗粒成分为O、Mn、Si、Al、Fe元素,黑色颗粒成分为Al2O3,氧化层靠近基体一侧可见杆状AlCN,晶界氧化特征明显,晶界氧化产物组成元素为O、Al、Mn、Si、Fe、Ti等,见图2。对1 250 ℃试验钢氧化层进行了XRD检测分析,氧化层由68.3%的Fe、9.9%的FeO、6.9%的Fe3Mn3O8、9.9%的Fe2(SiO4)、5%的(Mn2Fe)Al2(SiO4)3组成,见图3。XRD检测分析结果与扫描电镜检测分析结果具有较好的一致性。
由于试验钢试样采用RX4-150-13型高温箱式电阻炉对试样进行热处理,在加热过程中试样表面与空气接触,在1 150 ℃以上的较高温度下,钢中易于氧化的元素能够和空气中的氧、氮发生反应,首先是表面的Mn、Si、Al、Fe等元素与空气中的氧反应生成颗粒状氧化物,随着氧气在试样表面的进一步扩散反应,氧化层逐渐增厚,氧化反应之后在氧化层与基体的过渡区内Al与N反应生成AlN。随着试验钢加热温度的提高,试验钢表面出现晶界熔化,给空气扩展形成了通道,氧气更易于在晶界富集,从而导致晶界氧化,同时在晶界氧化的周围区域生成大量杆状AlN。
对不同热处理温度的试验钢进行显微组织和晶粒度检测,显微组织为奥氏体,奥氏体中可见大量孪晶,见图4
热处理试验钢加热温度从1 000到1 250 ℃的平均晶粒度测量结果依次为29.35 μm、33.85 μm、37.38 μm、42.50 μm、53.08 μm、91.20 μm,随着热处理温度的升高,晶粒逐步长大,其变化规律如图5所示。热处理温度在1 150 ℃之前晶粒长大较为缓慢,从图4可见在温度为1 150 ℃时,开始出现混晶,1 200 ℃时晶粒长大并均匀化,到1 250 ℃时晶粒明显增大。
(1)试验钢在1 100 ℃开始表面形成氧化层,1 150 ℃晶界开始氧化,氧化层产物为68.3%的Fe、9.9%的FeO、6.9%的Fe3Mn3O8、9.9%的Fe2(SiO4)、5%的(Mn2Fe)Al2(SiO4)3
(2)随着热处理温度的升高,试验钢晶粒逐步长大,1 150 ℃之前晶粒长大较为缓慢,在温度为1 150 ℃时开始出现混晶,1 200 ℃时晶粒长大并均匀化,到1 250 ℃时晶粒明显增大。
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范勇斐, 张恒. 热轧高锰钢晶间氧化的研究[J]. 热处理, 2017, 32(3):32-35.
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  • 接收时间:2021-12-22
  • 首发时间:2025-11-24
  • 出版时间:2022-10-25
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2种不同金属材料的力学参数

Family
属数
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genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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