金属学报  1979, Vol. 15 Issue (4): 506-591

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40MnB硼相的溶解和析出以及对钢性能的影响

祖荣祥

北京钢厂和冶金工业部钢铁研究总院硼钢研究组

THE DISSOLUTION AND PRECIPITATION OF BORON CONSTITUENT AND THEIR EFFECTS ON THE PROPERTIES OF 40MnB STEEL

Res. Gp. of Boron Steels; Beijing Steel Works and Central Iron and Steel Research Institute; Ministry of Metallurgical Industry

祖荣祥. 40MnB硼相的溶解和析出以及对钢性能的影响[J]. 金属学报, 1979, 15(4): 506-591.
. THE DISSOLUTION AND PRECIPITATION OF BORON CONSTITUENT AND THEIR EFFECTS ON THE PROPERTIES OF 40MnB STEEL[J]. Acta Metall Sin, 1979, 15(4): 506-591.

摘要 参考文献 相关文章 Metrics 全文: PDF(2610 KB)   摘要: 采用定量相分析,硼自射线照象等技术,对不同含硼量的中碳钢40 MnB,在高温加热及冷却过程中,M_(23)(C,B)_6的溶解、析出行为及对钢性能的影响进行了研究。发现析出的M_(23)(C,B)_6的数量及粒度随着钢中的含硼量增加及冷却速度的减小而增加;含硼量不同的钢具有一个相同的临界冷却速度,在这一冷速下,M_(23)(C,B)_6,的析出量达到饱和。M_(23)(C,B)_6的溶解、析出对淬透性和韧性有很大影响。含硼量较低的钢,在相同条件下M_(23)(C,B)_6的析出量较小,且易于溶解,故钢具有较好的综合性能,并对热履历的变化不敏感。提出了一些稳定钢性能的建议。 Abstract：The effects of dissolution and precipitation of M_(23)(C,B)_6 during heating athigh temperature and cooling subsequently upon the properties of medium carbonsteel 40MnB containing different amounts of boron have been investigated by meansof quantitative phase analysis and boron-autoradiography. The volume fraction andgrain size of M_(23)(C,B)_6 precipitate may be increased with the increase of boroncontent and with the decrease of cooling rate. Although the steels contained dif-ferent amounts of boron, a same critical cooling rate may be appeared at whichM_(23)(C,B)_6 precipitate reached to saturation. The dissolution and precipitation ofM_(23)(C,B)_6 are deeply affected the hardenability and toughness of the steels. Underthe same condition, M_(23)(C,B)_6 in steels containing less boron may be precipitatedout in smaller size and easily dissolved. Thus, they exhibited better combinedproperties and less sensitivity to the change of heat history. Suggestion on stabi-lizing the properties of the steels has been made. 收稿日期: 1979-04-18      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 祖荣祥 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1979/V15/I4/506 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed