金属学报  1987, Vol. 23 Issue (4): 285-404

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低合金高速钢回火过程中特殊碳化物沉淀的电镜研究

丁培道;潘复生;周守则

重庆大学;重庆大学;重庆大学

TEM STUDY OF SECONDARY CARBIDES PRECIPITATION IN LOW ALLOYED HIGH SPEED STEEL DURING TEMPERING

by DING Peidao; PAN Fusheng; ZHOU Shouze (Chongqing University) (Manuscript received 27 November; 1985; revised manuscript 16 July; 1986)

丁培道;潘复生;周守则. 低合金高速钢回火过程中特殊碳化物沉淀的电镜研究[J]. 金属学报, 1987, 23(4): 285-404.
, , . TEM STUDY OF SECONDARY CARBIDES PRECIPITATION IN LOW ALLOYED HIGH SPEED STEEL DURING TEMPERING[J]. Acta Metall Sin, 1987, 23(4): 285-404.

摘要 参考文献 相关文章 Metrics 全文: PDF(3372 KB)   摘要: 本文用TEM对低合金高速钢W3Mo2Cr4VSi在回火过程中析出的特殊碳化物以及Si对该过程的影响进行了较系统的研究。结果和分析表明:该钢产生二次硬化的主要特殊碳化物是圆盘状的MC型碳化物,厚度和直径比为0.3—0.4,MC碳化物和基体间满足Baker-Nutting关系:{010}MC//{010}_a,<001>_(MC)//<101>_a在560℃回火时,Si显著细化MC型特殊碳化物,在650℃回火时,Si促进M_6C碳化物沿马氏体的边界沉淀析出。文章探讨了MC型碳化物的形态以及Si影响MC型碳化物沉淀的机理。 Abstract：The precipitation of secondary carbides in low alloyed high speed steel W3-Mo,2Cr4VSi during tempering and the influonce of Si, containing 0.2-2.3%, upon it were observed under TEM. It is shown that the disc-shaped carbide of MC-type, the ratio of thickness to diameter about 0.3-0.4, is the predominant finely dispersed secondary precipitate which is responsible for the peak hardness during tempering at 560℃. The orientation between MC carbide and matrix is found to be fulfilled the Baker-Nutting's relation: {010}_(MC)//{010}_α, <001>_(MC)//<101>_α The MC carbide is made fine during tempering at 560℃ when Si is added to steel, and the coarse M_6C carbide accelerated to precipitate along martensite boundary at 650℃. The MC morphology and the effect of Si on the precipitation of MC carbide are also discussed. 收稿日期: 1987-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 丁培道 潘复生 周守则 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I4/285 1 Andren H-O. Scr Met, 1981; 15: 749-752 2 Stiller K, Svensson L-E, Howell P R et al. Acta Metall, 1984; 32: 1457-1467 3 #12 4 潘复生,重庆大学,金属材料专业,硕士学位论文,1985 5 Kuo Kehsin (郭可信). J Iron Steel Inst, 1953; 174: 223 6 雍岐龙,郑鲁.金属学报.1984;20:A9-16 7 林栋梁,金属学报,1978;14:323 8 Bungardt K, Haberling E, Rose A. DEW-Tech Ber, 1972; 12: 111-133 9 Wriedt H A, Turkdogan E T.Met Sci, 1984; 18: 27-30 10 Zener C. J Appl Phys, 1949; 20: 950 11 #122 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed