表达了钢蓝脆性温度范围的评价

V. Matyunin
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引用次数: 0

摘要

对结构钢的蓝脆温度范围及其产生的原因进行了简要分析。值得注意的是,蓝色脆性引起钢的所有机械特性的变化。特别是在蓝色脆性的窄温区,强度特性增加,塑性特性降低。建立了硬度与强度相似的变化规律,可以作为确定蓝脆性温度范围的诊断参数。针对3个等级的结构钢,通过试样在不同温度下的拉伸,确定了蓝脆性的温度范围。提出了一种通过改变布氏硬度来快速检测蓝脆性温度范围的方法。该技术消除了制造样品的需要,节省了材料和人工成本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Express evaluation of temperature range of steel blue brittleness
A brief analysis of the blue brittleness temperature range of structural steels and the reasons for its occurrence has been carried out. It is noted that blue brittleness causes a change in all mechanical characteristics of steel. In particular, the strength characteristics increase, and the plasticity characteristics decrease in a narrow temperature zone of blue brittleness. It was established that hardness changed similarly to strength and can be used as a diagnostic parameter to identify the temperature range of blue brittleness. For three grades of structural steels, experiments were carried out to identify the temperature range of blue brittleness by tension of samples at various temperatures. A technique for express detection of the blue brittleness temperature range by changing the Brinell hardness determined by instrumented indentation is proposed. The technique eliminates the need to manufacture samples and saves material and labor costs.
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