CN107421797A - 超低碳冷轧板的金相快捷检测方法 - Google Patents

超低碳冷轧板的金相快捷检测方法 Download PDF

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Publication number
CN107421797A
CN107421797A CN201710671113.8A CN201710671113A CN107421797A CN 107421797 A CN107421797 A CN 107421797A CN 201710671113 A CN201710671113 A CN 201710671113A CN 107421797 A CN107421797 A CN 107421797A
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ultra
metallographic
low carbon
rolling plate
carbon cold
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胡洪林
马孝娟
张爱梅
卢鹏程
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Xinjiang Bayi Iron and Steel Co Ltd
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Baosteel Group Xinjiang Bayi Iron and Steel Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/32—Polishing; Etching

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)

Abstract

本发明公开了一种超低碳冷轧板的金相快捷检测方法，首先配制硝酸酒精溶液，该溶液采用市售质量百分数为69%的浓硝酸4ml、无水酒精100ml进行配制，然后将试样浸入常温下、质量百分数为4％的硝酸酒精溶液内进行浸蚀，浸蚀时间20－25秒，试样表面发灰后取出停止浸蚀。

Description

超低碳冷轧板的金相快捷检测方法
技术领域
本发明涉及一种超低碳冷轧板的金相快捷检测方法。
背景技术
通过实验采用相对稳定的超低碳冷轧板的金相分析技术，制作典型的超低碳冷轧板的金相标准图片，通过与金相标准图片的对比，可提前发现超低碳冷轧板产品的金相是否异常，为超低碳冷轧板的金相分析提供良好的帮助。
发明内容
本发明的目的在于提供一种超低碳冷轧板的金相快捷检测方法，能够快速有效地检测超低碳冷轧板的金相品质，有利于对超低碳冷轧板进行金相分析。
本发明的目的是这样实现的，一种超低碳冷轧板的金相快捷检测方法，首先配制硝酸酒精溶液，该溶液采用市售质量百分数为69%的浓硝酸4ml、无水酒精100ml进行配制，然后将试样浸入常温下、质量百分数为4％的硝酸酒精溶液内进行浸蚀，浸蚀时间20－25秒，试样表面发灰后取出停止浸蚀。
低碳钢金相试样的表面浸蚀主要可以看作是化学溶解过程，浸蚀剂首先把磨面表层很薄的变形层溶解掉，接着就对晶界起化学溶解作用，这是由于晶界上原子排列的特别紊乱，其自由能也较高，所以晶界处较容易受浸蚀而呈沟凹，若继续浸蚀则会对晶粒产生溶解作用。超低碳冷轧板，含碳量极低（一般小于20PPM），晶界自由能也较低，所以晶界处不容易受浸蚀而呈沟凹，需延长浸蚀时间来达到效果。通过实验采用相对稳定的超低碳冷轧板的金相分析技术，制作典型的超低碳冷轧板的金相标准图片，为超低碳冷轧板的金相分析提供良好的帮助。
在化学浸蚀试剂配方和浸蚀时间控制工艺一致的情况下，当超低碳冷轧板含碳量小于20PPM时，超低碳冷轧板的金相图片呈典型的金相标准图片特点；当超低碳冷轧板含碳量大于20PPM时，超低碳冷轧板的金相图片不能呈现典型的金相标准图片特点。
对生产出的产品使用上述方法进行金相检测，产品金相图片的符合性较好。本发明适用于超低碳冷轧板（含碳量小于20PPM）产品金相图片的对比分析和判定。
具体实施方式
一种超低碳冷轧板的金相快捷检测方法，首先配制硝酸酒精溶液，该溶液采用市售质量百分数为69%的浓硝酸4ml、无水酒精100ml进行配制，然后将试样浸入常温下、质量百分数为4％的硝酸酒精溶液内进行浸蚀，浸蚀时间20－25秒，试样表面发灰后取出停止浸蚀。

Claims (1)

1.一种超低碳冷轧板的金相快捷检测方法，其特征在于首先配制硝酸酒精溶液，该溶液采用市售质量百分数为69%的浓硝酸4ml、无水酒精100ml进行配制，然后将试样浸入常温下、质量百分数为4％的硝酸酒精溶液内进行浸蚀，浸蚀时间20－25秒，试样表面发灰后取出停止浸蚀。
CN201710671113.8A 2017-08-08 2017-08-08 超低碳冷轧板的金相快捷检测方法 Pending CN107421797A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101984334A (zh) * 2010-10-29 2011-03-09 河北钢铁股份有限公司唐山分公司 超低碳冷轧退火无间隙原子钢金相组织显示方法
CN102890027A (zh) * 2012-09-29 2013-01-23 攀钢集团攀枝花钢铁研究院有限公司 一种含Ti的无间隙原子钢冷轧薄板金相组织显示方法
CN103759993A (zh) * 2013-12-31 2014-04-30 广西玉柴机器股份有限公司 金相试样制备方法
CN103852358A (zh) * 2014-03-02 2014-06-11 首钢总公司 一种超低碳if薄板金相组织的显示方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101984334A (zh) * 2010-10-29 2011-03-09 河北钢铁股份有限公司唐山分公司 超低碳冷轧退火无间隙原子钢金相组织显示方法
CN102890027A (zh) * 2012-09-29 2013-01-23 攀钢集团攀枝花钢铁研究院有限公司 一种含Ti的无间隙原子钢冷轧薄板金相组织显示方法
CN103759993A (zh) * 2013-12-31 2014-04-30 广西玉柴机器股份有限公司 金相试样制备方法
CN103852358A (zh) * 2014-03-02 2014-06-11 首钢总公司 一种超低碳if薄板金相组织的显示方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
臧晓良: "超低碳微合金钢贝氏体相变行为研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 *
陈继平 等: "Ｔｉ＋Ｎｂ和Ｔｉ＋Ｖ超低碳烘烤硬化钢的组织和性能研究", 《材料工程》 *

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