A Simple and Feasible Method of Bluing Fracture Experiment of Steels
摘 要
将带有V型刻槽的几种钢材试样,先在其奥氏体化温度下保温一段时间进行油淬或水淬,获得淬火马氏体组织,然后经回火空冷,待试样冷却至300~350 ℃(蓝脆温度)迅速将试样折断,最后将试样在空气中自然冷却或采取一定的保温措施冷却,便可获得良好的发蓝断口。经多次试验验证,结果表明:该方法获得的断口面呈均匀明显的深蓝色,夹杂物显示清晰,不存在影响夹杂物评定的不利因素。
Abstract
Several kinds of steel specimens with V-shaped engraved groove, at first were heated and kept warm at the austenitizing temperature for a period of time and then quenched in oil or water, thus the quenching martensite structure was obtained. Then the specimens were tempered and cooled in the air. When the specimen temperature was 300~350 ℃ (blue brittle temperature), the specimens were fractured promptly and then cooled in the air or with some insulation measurement, finally the well bluing fracture surfaces were obtained. According to the repeating testing verification, the results show that the even and distinct mazarine color appeared in the fracture surface obtained by this method, and the inclusions could be shown clearly without the negative factors to influence the inclusion evaluation.
中图分类号 TG115.2 DOI 10.11973/lhjy-wl201605006
所属栏目 试验技术与方法
基金项目
收稿日期 2015/6/29
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备注靳生洪(1982-),男,助理工程师。
引用该论文: JIN Sheng-hong,ZHAO Hai-yan. A Simple and Feasible Method of Bluing Fracture Experiment of Steels[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2016, 52(5): 312~314
靳生洪,赵海燕. 一种简易可行的钢材发蓝断口试验方法[J]. 理化检验-物理分册, 2016, 52(5): 312~314
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参考文献
【1】GB/T 1814-1979钢材断口检验法[S].
【2】ISO 3763-1976钢材评定非金属夹杂物含量的宏观方法[S].
【3】裴海祥,王烽,袁刚.铸坯夹杂物的定量评价方法[J].理化检验-物理分册,2012,48(11): 730-731.
【4】吕建刚,肖李鹏.钢中非金属夹杂物及其金相检验[J].理化检验-物理分册,2015,51(4): 229-233.
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【2】ISO 3763-1976钢材评定非金属夹杂物含量的宏观方法[S].
【3】裴海祥,王烽,袁刚.铸坯夹杂物的定量评价方法[J].理化检验-物理分册,2012,48(11): 730-731.
【4】吕建刚,肖李鹏.钢中非金属夹杂物及其金相检验[J].理化检验-物理分册,2015,51(4): 229-233.
【5】尹安远,吴素君.钢中非金属夹杂物的鉴定[M].北京:北京航空航天大学出版社,2007.
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