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- W2473702419 abstract "高强度23MnNiMoCr54链环钢是煤矿设备主要部件,在进行生产测试过程中发生断裂。对该链条钢裂纹部位进行了金相检测、化学元素成分检测、扫描电镜和断口检验和俄歇电子能谱仪分析。结果表明,链条钢的化学元素组成、气体含量、低倍组织和夹杂物含量符合相关技术标准要求;其金相组织为回火屈氏体,实际晶粒度为4级,断口为典型的脆性断口,断裂方式为沿晶脆性断裂。由于链环在生产过程中热处理不当,淬火加热温度过高,产生过热组织,造成链环晶粒粗大,在随后的回火过程中由于加热温度或者加热时间不当,导致晶界处杂质元素偏析,从而形成回火脆性。在晶粒粗大的情况下同时出现回火脆性,导致了链环钢在试验检查时发生沿晶脆性断裂。" @default.
- W2473702419 created "2016-07-22" @default.
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- W2473702419 date "2013-01-01" @default.
- W2473702419 modified "2023-09-24" @default.
- W2473702419 title "Fracture Reason of 23MnNiMoCr54 Chains Annulus" @default.
- W2473702419 hasPublicationYear "2013" @default.
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