Carbidauflösungs- und Carbidausscheidungsvorgänge bei der Härtung von Schnellarbeitsstählen

Carbidauflösungs- und Carbidausscheidungsvorgänge bei der Härtung von Schnellarbeitsstählen
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施奈拉贝茨斯塔伦 (Schnellarbeitsstählen) 的碳化物和碳化物治理

DOI:
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发表时间:
1995
期刊:
HTM: Journal of Heat Treatment and Materials
影响因子:
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通讯作者:
K. Rasche
K. Rasche
中科院分区:
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文献类型:
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作者:
C. Ernst;E. Haberling;K. Rasche

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本文描述了S 10-4-3-10、S 2-10-1-8和S 6-5-2(德国牌号1.3207、1.3247和1.3343)高速钢在盐浴和真空炉中奥氏体化过程中的碳化物转变行为。随着温度的升高和保温时间的延长,除未溶解的残余碳化物外,碳化物在奥氏体化过程中溶解。奥氏体化后的延迟冷却速度导致碳化物过早析出,这在定性和定量上都得到了证实。指出了它们对所研究钢的组织、硬度和韧性等性能的影响。
The carbide transformation behaviour of high-speed steels S 10-4-3-10, S 2-10-1-8 and S 6-5-2 (German grades 1.3207, 1.3247 and 1.3343) during austenitization in salt baths and in vacuum furnaces is being described. With increasing temperature and holding time the carbides are dissolved during the austenitization process except for a non-soluble amount of residual carbides. A delayed cooling rate aftre austenitization results in premature carbide precipitation, which are proved qualitatively as well as quantitatively. Their influence on the properties of the steels investigated - such as microstructure, hardness and toughness - is pointed out.