CN102072834A - Method for observing metallographic structure on titanium/steel explosion welding interface - Google Patents
Method for observing metallographic structure on titanium/steel explosion welding interface Download PDFInfo
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- CN102072834A CN102072834A CN 201010531074 CN201010531074A CN102072834A CN 102072834 A CN102072834 A CN 102072834A CN 201010531074 CN201010531074 CN 201010531074 CN 201010531074 A CN201010531074 A CN 201010531074A CN 102072834 A CN102072834 A CN 102072834A
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Abstract
The present invention discloses a method for observing a metallographic structure on a titanium/steel explosion welding interface, which comprises the following steps: 1, machining a metallographic structure observation plane on the titanium/steel explosion welding interface; 2, grinding the metallographic structure observation plane; 3, carrying out pickling with HF solution; 4, carrying out mechanical polishing; 5, eroding titanium and polishing steel; and 6, carrying out observation. The method is easy to operate, the metallographic structure on the titanium/steel explosion welding interface can be observed clearly by adopting the method, and no special equipment is needed.
Description
Technical field
The invention belongs to material surface structure view survey technology field, be specifically related to the observation procedure of a kind of titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure.
Background technology
Titanium/steel composite board is a kind of titanium plate and steel plate to be connected to form by explosive welding, titanium steel composite board has the corrosion resistance of titanium, the intensity of general steel plate, than titanium plate low cost and other advantages, be mainly used in the condenser tube board device of chemical plant, pressure vessel and generating plant, recently be applied to again in the fields such as acid-alkali treatment groove of bleaching treatment trough, sewage treatment plant in paper mill.In order to study the shop characteristic of the compound blast plate of titanium/steel, need observe to understand the seam degree of blast back material interface and Interface Microstructure, the distortion of materials degree of calmodulin binding domain CaM is surveyed at interface two, adjust explosion weld process parameter and annealing process, with the good explosive clad plate of obtained performance.In existing titanium/steel document, there is not article about the observation procedure of titanium/steel interface metallographic structure.Titanium/steel composite material metallographic specimen is because the problem of the not anti-etch of steel makes the very difficult interface that obtains of steel side organize clearly.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of easy operating at above-mentioned the deficiencies in the prior art, does not need the observation procedure of the titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure of any specific installation.The present invention can effectively solve the observational technique of titanium/steel blast composite welding metallographic specimen microstructure, makes the boundary line of EXPLOSIVE WELDING INTERFACE, interface metallographic structure high-visible.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the observation procedure of a kind of titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure is characterized in that this method may further comprise the steps:
(1) at titanium/steel EXPLOSIVE WELDING INTERFACE place machining metallographic plane of vision;
(2) the metallographic plane of vision with machining in the step (1) adopts metallographic waterproof abrasive paper to grind on muller, and the sand grains on the metallographic plane of vision is washed in the grinding backlash off;
(3) with the metallographic plane of vision concentration of volume percent through grinding post-flush drop grain in the step (2) be 10%～20% HF solution pickling;
(4) will place on the buffing machine through the metallographic plane of vision after the pickling in the step (3), adopt Cr
2O
3Solution and granularity are that the Buddha's warrior attendant powder of 2.5 μ m carries out mechanical buffing;
(5) part to the titanium surface with titanium in the metallographic plane of vision after mechanical buffing in the etchant solution etch step (4) becomes cinerous, and then be the part of steel in 2%～4% the nital wiping metallographic plane of vision with concentration of volume percent, stop wiping after making the steel surface become canescence; Described etchant solution is H
2SO
4, HCl, HF and H
2O is by 1～2: the mixed solution that 1: 0.5～2: 7 volume ratio is mixed;
(6) the metallographic plane of vision through etch and wiping in the step (5) is carried out metallographic structure observation with microscope.
Process of lapping is for using 150 successively described in the above-mentioned steps (2)
#, 700
#Metallographic waterproof abrasive paper grind step by step.
H described in the above-mentioned steps (5)
2SO
4, HCl and HF be analytical reagent.
The present invention compared with prior art has the following advantages: adopt the HF solution acid phase plane of vision of abacusing before the sample of the present invention polishing, the titanium of sample metallographic plane of vision is dissolved in a large number, effectively remedied the deficiency of stock removal in the titanium polishing, H is selected in the titanium etch for use
2SO
4, HCl, HF and H
2The mixed solution of O has also been avoided HNO in the titanium etchant commonly used
3Etch influence to steel.Easy operating of the present invention, can effectively solve the observational technique of titanium/steel blast composite welding metallographic specimen microstructure, make boundary line, the interface metallographic structure of EXPLOSIVE WELDING INTERFACE high-visible, do not need any specific installation can observe out titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure clearly.
The present invention will be further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure figure of the embodiment of the invention 1.
Fig. 2 is the titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure figure of the embodiment of the invention 2.
Fig. 3 is the titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure figure of the embodiment of the invention 3.
Embodiment
Embodiment 1
(1) at titanium/steel EXPLOSIVE WELDING INTERFACE place machining metallographic plane of vision;
(2) the metallographic plane of vision of machining is used 150 successively on muller
#, 700
#Metallographic waterproof abrasive paper grind step by step, grind backlash and wash sand grains on the metallographic plane of vision off;
(3) will metallographic plane of vision concentration of volume percent be 10% HF solution pickling through grinding post-flush drop grain;
(4) will place on the buffing machine through the metallographic plane of vision after the pickling, adopt Cr
2O
3Solution and granularity are that the Buddha's warrior attendant powder of 2.5 μ m carries out mechanical buffing;
(5) part to the titanium surface with titanium in the metallographic plane of vision of etchant solution etch after mechanical buffing becomes cinerous, and then be the part of steel in 2% the nital wiping metallographic plane of vision with concentration of volume percent, stop wiping after making the steel surface become canescence; Described etchant solution is H
2SO
4, HCl, HF and H
2O was by 1: 1: 0.5: the mixed solution that 7 volume ratio is mixed, described H
2SO
4, HCl and HF be analytical reagent;
(6) the metallographic plane of vision through etch and wiping is carried out metallographic structure observation with microscope.
According to titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure figure such as Fig. 1 that present embodiment observes, the clear picture that observes.
Embodiment 2
(1) at titanium/steel EXPLOSIVE WELDING INTERFACE place machining metallographic plane of vision;
(2) the metallographic plane of vision of machining is used 150 successively on muller
#, 700
#Metallographic waterproof abrasive paper grind step by step, grind backlash and wash sand grains on the metallographic plane of vision off;
(3) will metallographic plane of vision concentration of volume percent be 15% HF solution pickling through grinding post-flush drop grain;
(4) will place on the buffing machine through the metallographic plane of vision after the pickling, adopt Cr
2O
3Solution and granularity are that the Buddha's warrior attendant powder of 2.5 μ m carries out mechanical buffing;
(5) part to the titanium surface with titanium in the metallographic plane of vision of etchant solution etch after mechanical buffing becomes cinerous, and then be the part of steel in 3% the nital wiping metallographic plane of vision with concentration of volume percent, stop wiping after making the steel surface become canescence; Described etchant solution is H
2SO
4, HCl, HF and H
2O was by 1.5: 1: 1.2: the mixed solution that 7 volume ratio is mixed, described H
2SO
4, HCl and HF be analytical reagent;
(6) the metallographic plane of vision through etch and wiping is carried out metallographic structure observation with microscope.
According to titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure figure such as Fig. 2 that present embodiment observes, the clear picture that observes.
Embodiment 3
(1) at titanium/steel EXPLOSIVE WELDING INTERFACE place machining metallographic plane of vision;
(2) the metallographic plane of vision of machining is used 150 successively on muller
#, 700
#Metallographic waterproof abrasive paper grind step by step, grind backlash and wash sand grains on the metallographic plane of vision off;
(3) will metallographic plane of vision concentration of volume percent be 20% HF solution pickling through grinding post-flush drop grain;
(4) will place on the buffing machine through the metallographic plane of vision after the pickling, adopt Cr
2O
3Solution and granularity are that the Buddha's warrior attendant powder of 2.5 μ m carries out mechanical buffing;
(5) part to the titanium surface with titanium in the metallographic plane of vision of etchant solution etch after mechanical buffing becomes cinerous, and then be the part of steel in 4% the nital wiping metallographic plane of vision with concentration of volume percent, stop wiping after making the steel surface become canescence; Described etchant solution is H
2SO
4, HCl, HF and H
2O was by 2: 1: 2: the mixed solution that 7 volume ratio is mixed, described H
2SO
4, HCl and HF be analytical reagent;
(6) the metallographic plane of vision through etch and wiping is carried out metallographic structure observation with microscope.
According to titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure figure such as Fig. 3 that present embodiment observes, the clear picture that observes.
Claims (3)
1. the observation procedure of titanium/steel EXPLOSIVE WELDING INTERFACE metallographic structure is characterized in that this method may further comprise the steps:
(1) at titanium/steel EXPLOSIVE WELDING INTERFACE place machining metallographic plane of vision;
(2) the metallographic plane of vision with machining in the step (1) adopts metallographic waterproof abrasive paper to grind on muller, and the sand grains on the metallographic plane of vision is washed in the grinding backlash off;
(3) with the metallographic plane of vision concentration of volume percent through grinding post-flush drop grain in the step (2) be 10%～20% HF solution pickling;
(4) will place on the buffing machine through the metallographic plane of vision after the pickling in the step (3), adopt Cr
2O
3Solution and granularity are that the Buddha's warrior attendant powder of 2.5 μ m carries out mechanical buffing;
(5) part to the titanium surface with titanium in the metallographic plane of vision after mechanical buffing in the etchant solution etch step (4) becomes cinerous, and then be the part of steel in 2%～4% the nital wiping metallographic plane of vision with concentration of volume percent, stop wiping after making the steel surface become canescence; Described etchant solution is H
2SO
4, HCl, HF and H
2O is by 1～2: the mixed solution that 1: 0.5～2: 7 volume ratio is mixed;
(6) the metallographic plane of vision through etch and wiping in the step (5) is carried out metallographic structure observation with microscope.
2. the observation procedure of titanium according to claim 1/steel EXPLOSIVE WELDING INTERFACE metallographic structure is characterized in that process of lapping is for using 150 successively described in the step (2)
#, 700
#Metallographic waterproof abrasive paper grind step by step.
3. the observation procedure of titanium according to claim 1/steel EXPLOSIVE WELDING INTERFACE metallographic structure is characterized in that, H described in the step (5)
2SO
4, HCl and HF be analytical reagent.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331363A (en) * | 2011-08-12 | 2012-01-25 | 西部金属材料股份有限公司 | Method for observing metallographic structure of niobium-titanium alloy |
| CN102721591A (en) * | 2012-07-07 | 2012-10-10 | 西部金属材料股份有限公司 | Method for observing metallographic structure of Hastelloy/steel overlaying welding interface |
| CN102735520A (en) * | 2012-07-07 | 2012-10-17 | 西部金属材料股份有限公司 | Method for observing metallographic structure on Monel alloy/steel surfacing interface |
| CN103398889A (en) * | 2013-08-21 | 2013-11-20 | 南京金创有色金属科技发展有限公司 | Microscopic structure display method of duplex stainless steel-carbon steel composite board |
| CN103759993A (en) * | 2013-12-31 | 2014-04-30 | 广西玉柴机器股份有限公司 | Metallographic specimen preparation method |
| CN105755471A (en) * | 2016-05-10 | 2016-07-13 | 钢铁研究总院 | Metallographic corrosive agent and corrosion method for titanium-steel composite material |
| CN109916685A (en) * | 2019-03-30 | 2019-06-21 | 西安汉唐分析检测有限公司 | A kind of corrosion observation method of Nb-Cu composite plate metallographic structure |
| CN110359048A (en) * | 2018-04-11 | 2019-10-22 | 天津大学 | A kind of titanium-carbon steel composite board etchant and application method |
| CN112665953A (en) * | 2020-10-29 | 2021-04-16 | 北京星航机电装备有限公司 | Metallographic structure corrosive agent and corrosion method for Ti60 titanium alloy oxide layer |
| CN112853356A (en) * | 2020-12-30 | 2021-05-28 | 西安建筑科技大学 | Metallographic corrosive agent and corrosion method for aluminum/titanium/steel explosion composite material |
| CN114526978A (en) * | 2022-02-25 | 2022-05-24 | 中国工程物理研究院材料研究所 | Metallographic corrosive liquid of vanadium alloy and preparation method of metallographic sample of vanadium alloy |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331363A (en) * | 2011-08-12 | 2012-01-25 | 西部金属材料股份有限公司 | Method for observing metallographic structure of niobium-titanium alloy |
| CN102721591A (en) * | 2012-07-07 | 2012-10-10 | 西部金属材料股份有限公司 | Method for observing metallographic structure of Hastelloy/steel overlaying welding interface |
| CN102735520A (en) * | 2012-07-07 | 2012-10-17 | 西部金属材料股份有限公司 | Method for observing metallographic structure on Monel alloy/steel surfacing interface |
| CN102735520B (en) * | 2012-07-07 | 2014-07-02 | 西部金属材料股份有限公司 | Method for observing metallographic structure on Monel alloy/steel surfacing interface |
| CN103398889A (en) * | 2013-08-21 | 2013-11-20 | 南京金创有色金属科技发展有限公司 | Microscopic structure display method of duplex stainless steel-carbon steel composite board |
| CN103398889B (en) * | 2013-08-21 | 2016-04-20 | 南京金创有色金属科技发展有限公司 | A kind of microstructure display packing of two phase stainless steel-carbon steel composite board |
| CN103759993A (en) * | 2013-12-31 | 2014-04-30 | 广西玉柴机器股份有限公司 | Metallographic specimen preparation method |
| CN103759993B (en) * | 2013-12-31 | 2016-01-13 | 广西玉柴机器股份有限公司 | Metallographic specimen preparation method |
| CN105755471A (en) * | 2016-05-10 | 2016-07-13 | 钢铁研究总院 | Metallographic corrosive agent and corrosion method for titanium-steel composite material |
| CN110359048A (en) * | 2018-04-11 | 2019-10-22 | 天津大学 | A kind of titanium-carbon steel composite board etchant and application method |
| CN109916685A (en) * | 2019-03-30 | 2019-06-21 | 西安汉唐分析检测有限公司 | A kind of corrosion observation method of Nb-Cu composite plate metallographic structure |
| CN109916685B (en) * | 2019-03-30 | 2021-08-06 | 西安汉唐分析检测有限公司 | Corrosion observation method for Nb-Cu composite plate metallographic structure |
| CN112665953A (en) * | 2020-10-29 | 2021-04-16 | 北京星航机电装备有限公司 | Metallographic structure corrosive agent and corrosion method for Ti60 titanium alloy oxide layer |
| CN112853356A (en) * | 2020-12-30 | 2021-05-28 | 西安建筑科技大学 | Metallographic corrosive agent and corrosion method for aluminum/titanium/steel explosion composite material |
| CN114526978A (en) * | 2022-02-25 | 2022-05-24 | 中国工程物理研究院材料研究所 | Metallographic corrosive liquid of vanadium alloy and preparation method of metallographic sample of vanadium alloy |
| CN114526978B (en) * | 2022-02-25 | 2024-01-02 | 中国工程物理研究院材料研究所 | Metallographic corrosive liquid of vanadium alloy and preparation method of metallographic sample of vanadium alloy |
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Application publication date: 20110525 |