CN106119851A - 一种显示铱晶界的金相腐蚀剂及其制备方法 - Google Patents

一种显示铱晶界的金相腐蚀剂及其制备方法 Download PDF

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CN106119851A
CN106119851A CN201610632772.6A CN201610632772A CN106119851A CN 106119851 A CN106119851 A CN 106119851A CN 201610632772 A CN201610632772 A CN 201610632772A CN 106119851 A CN106119851 A CN 106119851A
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孙岩
庞继明
翟笑冬
陈刚超
王丹
吕啸天
周立宽
刘超
杨德江
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Shaanxi Three Yi Rock Mstar Technology Ltd
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    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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Abstract

本发明公开了一种显示铱晶界的金相腐蚀剂及其制备方法,该腐蚀剂由以下按体积百分比计的组分组成:氢氟酸:25~40%,加入氯化钠:8~15g/100ml,其余为蒸馏水。通过本发明的配比以及制备方法制备的金相腐蚀剂金属铱的晶界清晰连续、形貌组织完整,适合晶粒度评级。

Description

一种显示铱晶界的金相腐蚀剂及其制备方法
技术领域
本发明属于化学技术领域,涉及一种腐蚀剂,具体地税,涉及一种显示铱晶界的金相腐蚀剂及其制备方法。
背景技术
在金属材料的研究过程中,材料的性能取决于组织形态,而组织形态的好坏关键在于晶粒度的大小,因此需要对材料进行金相分析。金属铱及其合金的化学性质非常稳定,尤其是对酸的化学稳定性极高,室温下致密的铱金属具有极强耐蚀性,因此其晶相腐蚀十分困难。
通常情况下金属铱晶粒度的腐蚀剂采用含25%的盐酸的饱和氯化钠溶液的混合溶液试剂,在电流作用下腐蚀金相。然而采用上述方法腐蚀晶界时效果不明显且组织形貌不完整,导致晶粒度评级很难进行。
发明内容
本发明的目的在于克服现有技术中存在的缺陷,提供一种显示铱晶界的金相腐蚀剂及其制备方法,该腐蚀剂能够使得金相组织中的晶界清晰连续、形貌组织完整,适合晶粒度评级。
其具体技术方案为:
一种显示铱晶界的金相腐蚀剂,由以下按体积百分比计的组分组成:氢氟酸:25~40%,加入氯化钠:8~15g/100ml,其余为蒸馏水。
优选地,由以下按体积百分比计的组分组成:氢氟酸:30~35%,加入氯化钠:10~13g/100ml,其余为蒸馏水。
一种本发明所述的显示铱晶界的金相腐蚀剂的制备方法,包括以下步骤:
称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为25~40%氢氟酸溶液,按照8~15g/100ml加入氯化钠后搅拌至溶质完全溶解后可用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min,待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
进一步,称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为25%氢氟酸溶液,按照10g/100ml加入氯化钠后搅拌至溶质完全溶解后可用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min。待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
进一步,称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为35%氢氟酸溶液,按照13g/100ml加入氯化钠后搅拌至溶质完全溶解后可用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min,待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
进一步,称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为40%氢氟酸溶液,按照15g/100ml加入氯化钠后搅拌至溶质完全溶解后可用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min。待试样表面发灰发暗后用脱脂棉擦拭,用水和无水乙醇进行清洗,风干后观察。
与现有技术相比,本发明的有益效果为:
通过本发明的配比以及制备方法制备的金相腐蚀剂金属铱的晶界清晰连续、形貌组织完整,适合晶粒度评级。
附图说明
图1为3mm铱板材,采用实施例1配方的腐蚀剂,晶界显示很模糊;
图2为3mm铱板材,采用实施例2配方的腐蚀剂,晶界显示不清晰;
图3为3mm铱板材,采用实施例3配方的腐蚀剂,晶界显示清晰;
图4为3mm铱板材,采用实施例4配方的腐蚀剂,晶界显示清晰;
图5为3mm铱板材,采用实施例5配方的腐蚀剂,晶界显示不完全。
具体实施方式
下面结合具体实施例对本发明的技术方案作进一步详细地说明。
实施例1
称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为20%氢氟酸溶液,按照8g/100ml加入氯化钠后搅拌至溶质完全溶解后可用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min。待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
实施例2
称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为25%氢氟酸溶液,按照10g/100ml加入氯化钠后搅拌至溶质完全溶解后可用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min。待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
实施例3
称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为35%氢氟酸溶液,按照13g/100ml加入氯化钠后搅拌至溶质完全溶解,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min。待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
实施例4
称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为40%氢氟酸溶液,按照15g/100ml加入氯化钠后搅拌至溶质完全溶解后可用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min。待试样表面发灰发暗后用脱脂棉擦拭,用水和无水乙醇进行清洗,风干后观察。
实施例5
称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为45%氢氟酸溶液,按照13g/100ml加入氯化钠后搅拌至溶质完全溶解后可用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min,待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
由图1至图5可见采用本发明配方进行腐蚀,能够使得金相组织中的晶界清晰连续,并且有效避免了材料组织形貌的出现。非常有利于需要进行晶粒度测试的钢铁材料进行晶界的腐蚀。
以上所述,仅为本发明较佳的具体实施方式,本发明的保护范围不限于此,任何熟悉本技术领域的技术人员在本发明披露的技术范围内,可显而易见地得到的技术方案的简单变化或等效替换均落入本发明的保护范围内。

Claims (6)

1.一种显示铱晶界的金相腐蚀剂,其特征在于,由以下按体积百分比计的组分组成:氢氟酸:25~40%,加入氯化钠:8~15g/100ml,其余为蒸馏水。
2.根据权利要求1所述的显示铱晶界的金相腐蚀剂,其特征在于,由以下按体积百分比计的组分组成:氢氟酸:30~35%,加入氯化钠:10~13g/100ml,其余为蒸馏水。
3.一种权利要求1所述的显示铱晶界的金相腐蚀剂的制备方法,其特征在于,包括以下步骤:
称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为25~40%氢氟酸溶液,按照8~15g/100ml加入氯化钠后搅拌至溶质完全溶解后用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min,待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
4.根据权利要求3所述的显示铱晶界的金相腐蚀剂的制备方法,其特征在于,称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为25%氢氟酸溶液,按照10g/100ml加入氯化钠后搅拌至溶质完全溶解后用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min,待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
5.根据权利要求3所述的显示铱晶界的金相腐蚀剂的制备方法,其特征在于,称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为35%氢氟酸溶液,按照13g/100ml加入氯化钠后搅拌至溶质完全溶解后用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min,待试样表面发灰发暗后用脱脂棉擦拭,用蒸馏水和无水乙醇进行清洗,风干后观察。
6.根据权利要求3所述的显示铱晶界的金相腐蚀剂的制备方法,其特征在于,称取体积百分比为60%的氢氟酸后滴入适量蒸馏水中获得浓度为40%氢氟酸溶液,按照15g/100ml加入氯化钠后搅拌至溶质完全溶解后用于腐蚀剂,将磨好的金相样放入腐蚀剂中,在室温的条件下电压控制在3~6V之间,腐蚀时间控制在15min,待试样表面发灰发暗后用脱脂棉擦拭,用水和无水乙醇进行清洗,风干后观察。
CN201610632772.6A 2016-08-01 2016-08-01 一种显示铱晶界的金相腐蚀剂及其制备方法 Pending CN106119851A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180086893A1 (en) * 2017-02-13 2018-03-29 University Of Electronic Science And Technology Of China Carbon material-polymer strain sensitive film and its preparation method
CN113088972A (zh) * 2021-04-02 2021-07-09 河南科技大学 一种稀土镁合金金相腐蚀剂及其应用

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘毅等: "铱片的显微组织与室温拉伸断裂机制研究", 《贵金属》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180086893A1 (en) * 2017-02-13 2018-03-29 University Of Electronic Science And Technology Of China Carbon material-polymer strain sensitive film and its preparation method
CN113088972A (zh) * 2021-04-02 2021-07-09 河南科技大学 一种稀土镁合金金相腐蚀剂及其应用
CN113088972B (zh) * 2021-04-02 2022-09-30 河南科技大学 一种稀土镁合金金相腐蚀剂及其应用

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