CN103063589A - Method for measuring misch metal solid solubility in steel and iron materials - Google Patents
Method for measuring misch metal solid solubility in steel and iron materials Download PDFInfo
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- CN103063589A CN103063589A CN2012105692866A CN201210569286A CN103063589A CN 103063589 A CN103063589 A CN 103063589A CN 2012105692866 A CN2012105692866 A CN 2012105692866A CN 201210569286 A CN201210569286 A CN 201210569286A CN 103063589 A CN103063589 A CN 103063589A
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- 239000000463 material Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000007787 solid Substances 0.000 title claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 title abstract description 7
- 239000010959 steel Substances 0.000 title abstract description 7
- 229910001122 Mischmetal Inorganic materials 0.000 title abstract 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 46
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 30
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 26
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims abstract description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 18
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims abstract description 12
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000006104 solid solution Substances 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims abstract description 7
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 27
- 239000000706 filtrate Substances 0.000 claims description 24
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 20
- 239000008151 electrolyte solution Substances 0.000 claims description 19
- 230000001186 cumulative effect Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 10
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- 238000002835 absorbance Methods 0.000 claims description 9
- -1 rare-earth ion Chemical class 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- LMBABJNSZGKTBA-UHFFFAOYSA-N 3,6-bis[(4-chloro-2-phosphonophenyl)diazenyl]-4,5-dihydroxynaphthalene-2,7-disulfonic acid Chemical compound OS(=O)(=O)C1=CC2=CC(S(O)(=O)=O)=C(N=NC=3C(=CC(Cl)=CC=3)P(O)(O)=O)C(O)=C2C(O)=C1N=NC1=CC=C(Cl)C=C1P(O)(O)=O LMBABJNSZGKTBA-UHFFFAOYSA-N 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 238000005342 ion exchange Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000003755 preservative agent Substances 0.000 claims description 3
- 230000002335 preservative effect Effects 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000003556 assay Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003814 drug Substances 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 229940079593 drug Drugs 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a method for measuring misch metal solid solubility in steel and iron materials. An absolute ethyl alcohol electrolyte of LiCl+ triethanolamine+ ethylene glycol+ diphenylguanidine+ benzene 1.5% is selected to carry out low-temperature electrolysis, and then solid solution rare earth is separated from rare earth second-phase inclusions, and convent measurement is carried out after treatment by means of a spectrophotometer. The method can achieve rare earth solid solubility measurement safely, reliably and cheaply in laboratory research and production practice, and has the advantages of being high in sensitive degree, safe in experimental process, easy and convenient to operate, and the like, and experimental equipment and drugs are cheap and easy to obtain, and the like.
Description
Technical field
The present invention relates to a kind of method of measuring mishmetal solid solubility in the ferrous materials, belong to the physico-chemical examination technique field.
Background technology
Adding a certain amount of rare earth in ferrous materials all can have certain useful effect to its tissue and performance, and this point is recognized the world over.But until today rare earth element in ferrous materials to exist form and the mechanism of action not yet to study clear.
The seventies in last century Japan Chuan Cun and youth once used electrolysis, separating and measuring re inclusion, thereby were estimated as the solid solution capacity of rare earth in steel with the difference that the steel middle rare earth is mingled with content and total amount.This kind method is subjected to the poor indirect error stack of measuring of mode and the factor affecting such as segregation of reciprocal effect and rare earth element of subtracting because of it, and sensitivity is lower, and error is excessive.Li Wenbin had been studied form and distribution that rare earth in steel exists with By Internal Friction Measurements in 1981, but failed to make quantitative test (seeing first national in-fighting academic meeting paper).The bright solid solution capacity of also measuring once rare earth in steel with the radio-label method of Han Qiyong and FT-207, its sensitivity is high than minusing, but this method is by the sample remelting, the a certain amount of radioisotope tracer of artificial adding is measured, institute's test specimens is not to take from the material of commercial production and experiment preparation, thereby can't be used for actual measurement.Then Dong Xiao chief and all beautiful Finleys are measured the method for rare earth solid solubility with electrolytic process, and used method relates to some comparatively strong chemical reactions when rare earth ion separates, and be therefore comparatively dangerous in experimentation.The solid solubility of the Direct Determination steel middle rare earth of the diligent invention of leaf literary composition and woods during the nineties, whole process is comparatively scientific and reasonable, but experiment device therefor plasma-speetrometer (ICP) is comparatively expensive, and in the popularization of production practices, comparatively difficult.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the defective of prior art, a kind of method of measuring mishmetal solid solubility in the ferrous materials is provided, it can safer in laboratory study and production practices, reliably and at an easy rate realize the mensuration of rare earth solid solubility, has highly sensitive, the characteristics such as experimentation is safe, easy and experimental facilities and medicine are cheap and easy to get.
For addressing the above problem, the present invention adopts following technical scheme:
The invention provides a kind of method of measuring mishmetal solid solubility in the ferrous materials, described method is: select LiCl+TEA triethanolamine+ethylene glycol+diphenylguanidine+benzene 1.5% absolute ethyl alcohol electrolytic solution, carry out low-temperature electrolytic, then the solid solution rare earth is separated with rare earth second-phase snotter and utilizes after treatment spectrophotometer to carry out assay.
Concrete steps are:
(1) electrolysis: the percentage by weight proportioning of electrolytic solution is: 2% LiCl, and 2% TEA triethanolamine, 0.5% ethylene glycol, 0.2% diphenylguanidine, 1.5% benzene, surplus is absolute ethyl alcohol;
Anode is the ferrous materials electrolytic sample of mishmetal during electrolysis, and negative electrode is stainless-steel tube; Weigh and record before the sample electrolysis, electrolysis temperature is-5 ℃～-10 ℃, and after electrolysis 2-3 hour, powered-down takes out sample, and weighs after drying, and the variation of front and back weight is the mass M that sample consumes;
(2) separate solid solution rare earth and rare earth second-phase snotter: by filling up at a slow speed quantitative filter paper of 4-6 layer in the Buchner funnel, electrolytic solution after the electrolysis is poured in the Buchner funnel, with preservative film the leak mouth is sealed again, carry out isolated by filtration, get the electrolytic solution filtrate of filtering and impurity removing;
(3) volatilization, dissolving, adjust pH: electrolytic solution filtrate 85 ℃ of lower implementations the in thermostat water bath to filtering and impurity removing are volatilized, and remove lower boiling organism; Again dissolve with deionized water, add hydrochloric acid, destroy residual organic substances and regulate acidity making the pH value be 1-2, surveying the filtrate cumulative volume is V;
(4) be H type strong cation-exchanging resin making the transition, the ion exchange column of packing into, from the filtrate cumulative volume, take out for the treatment of volume be V
1Filtrate, with its slow ion exchange column, make that all ions are all adsorbed by this resin in the solution, be that the hydrochloric acid flushing of 1.7N-2.0N is removed Fe, Mn, Al 2-3 time with concentration then; Hydrochloric acid wash-out take concentration as 4.3N-5.0N obtains pure rare-earth ion solution again;
Regulate acidity and make the pH value for 1-2, get liquid to be measured, the survey volume is V
2
(5) prepare the standard lean solution of one group of concentration known with the rare earth titer, adding 3ml, 0.02%wt Chlorophosphonazo III solution obtain 25ml Comparison of standards solution as developer, measure their absorbance with spectrophotometric, drawing standard working curve, the slope of standard working curve are K;
(6) oxalic acid of 10ml, 10%wt and the Chlorophosphonazo III solution of 3ml, 0.02%wt will be added in a certain amount of liquid to be measured, supply liquid to be measured and obtain 25ml solution to be measured, shake up rear with its absorbance A of spectrophotometer measurement, with thickness be b cuvette, do reference with reagent blank, recycle drawn standard working curve and can calculate the concentration of solution Rare Earth Ion, obtain the solid solubility of rare earth element in ferrous materials.
The solid solubility computing formula of rare earth element in ferrous materials is:
In the formula: A is the absorbance of liquid to be measured, and V is the filtrate cumulative volume behind volatilization, dissolving, the adjust pH, V
1For from the filtrate cumulative volume, take out for the treatment of the volume of filtrate, V
2Be the liquor capacity of collecting after handling, K is the slope of standard working curve, and b is the thickness of cuvette, and M is the quality that sample consumes when electrolysis.
Anode iron clamp and sample contact position can not be immersed in the electrolytic solution when electrolysis.
The standard lean solution of preparing one group of concentration known with the rare earth titer has 4 kinds of concentration at least.
The electrolytic solution universality that the present invention selects is better, stable reaction.
Quantitative filter paper isolated by filtration rare earth second-phase snotter, nonaqueous electrolytic solution water-bath are evaporated away low-boiling-point organic compound and the not volatile substance that stays are dissolved, add hydrochloric acid again with deionized water and destroy organism and cross strong cation-exchanging resin and get rid of the interfering ions such as Fe, Mn, Al at a slow speed by-5 ℃～-10 ℃ low-temperature electrolytics, 4～6 layers in the present invention, obtain pure rare-earth ion solution, measure the content of mishmetal solid solubility in the ferrous materials for spectrophotometer.
The present invention can safer in laboratory study and production practices, reliably and at an easy rate realize the mensuration of rare earth solid solubility, can reach highly sensitive, the characteristics such as experimentation is safe, easy and experimental facilities and medicine are cheap and easy to get.
Embodiment
Concrete steps are:
(1) electrolysis: the percentage by weight proportioning of electrolytic solution is: 2% LiCl, and 2% TEA triethanolamine, 0.5% ethylene glycol, 0.2% diphenylguanidine, 1.5% benzene, surplus is absolute ethyl alcohol;
Anode is the ferrous materials electrolytic sample of mishmetal during electrolysis, and negative electrode is stainless-steel tube; Weigh and record before the sample electrolysis, electrolysis temperature is-10 ℃, and after electrolysis 2-3 hour, powered-down takes out sample, and weighs after drying, and the variation of front and back weight is the mass M that sample consumes; Anode iron clamp and sample contact position can not be immersed in the electrolytic solution when electrolysis.
(2) separate solid solution rare earth and rare earth second-phase snotter: by filling up at a slow speed quantitative filter paper of 4-6 layer in the Buchner funnel, electrolytic solution after the electrolysis is poured in the Buchner funnel, with preservative film the leak mouth is sealed again, carry out isolated by filtration, get the electrolytic solution filtrate of filtering and impurity removing;
(3) volatilization, dissolving, adjust pH: electrolytic solution filtrate 85 ℃ of lower implementations the in thermostat water bath to filtering and impurity removing are volatilized, and remove lower boiling organism; Again dissolve with deionized water, add hydrochloric acid, destroy residual organic substances and regulate acidity making the pH value be 1-2, surveying the filtrate cumulative volume is V;
(4) be H type strong cation-exchanging resin making the transition, the ion exchange column of packing into, from the filtrate cumulative volume, take out for the treatment of volume be V
1Filtrate, with its slow ion exchange column, make that all ions are all adsorbed by this resin in the solution, be that the hydrochloric acid flushing of 1.7N-2.0N is removed Fe, Mn, Al 2-3 time with concentration then; Hydrochloric acid wash-out take concentration as 4.3N-5.0N obtains pure rare-earth ion solution again;
Regulate acidity and make the pH value for 1-2, get liquid to be measured, the survey volume is V
2
(5) prepare the standard lean solution of one group of concentration known with the rare earth titer, have 4 kinds of concentration at least, add respectively 3ml, 0.02%wt Chlorophosphonazo III solution obtains one group of 25ml Comparison of standards solution as developer, measure their absorbance with spectrophotometric, drawing standard working curve, the slope of standard working curve are K;
(6) oxalic acid of 10ml, 10%wt and the Chlorophosphonazo III solution of 3ml, 0.02%wt will be added in a certain amount of liquid to be measured, supply liquid to be measured and obtain 25ml solution to be measured, shake up rear with its absorbance A of spectrophotometer measurement, with thickness be b cuvette, do reference with reagent blank, recycle drawn standard working curve and can calculate the concentration of solution Rare Earth Ion, obtain the solid solubility of rare earth element in ferrous materials.
The solid solubility computing formula of rare earth element in ferrous materials is:
In the formula: A is the absorbance of liquid to be measured, and V is the filtrate cumulative volume behind volatilization, dissolving, the adjust pH, V
1For from the filtrate cumulative volume, take out for the treatment of the volume of filtrate, V
2Be the liquor capacity of collecting after handling, K is the slope of standard working curve, and b is the thickness of cuvette, and M is the quality that sample consumes when electrolysis.
This method measures that to add total amount of rare earth be that the rare-earth solid solution capacity of the CSP mild carbon steel hot rolled plate of 135ppm is 10.6ppm.
It should be noted that at last: obviously, above-described embodiment only is for example of the present invention clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being amplified out thus or change still are among protection scope of the present invention.
Claims (5)
1. method of measuring mishmetal solid solubility in the ferrous materials, it is characterized in that, described method is: select LiCl+TEA triethanolamine+ethylene glycol+diphenylguanidine+benzene 1.5% absolute ethyl alcohol electrolytic solution, carry out low-temperature electrolytic, then the solid solution rare earth is separated with rare earth second-phase snotter and after treatment, utilize spectrophotometer to carry out assay.
2. the method for mishmetal solid solubility in the mensuration ferrous materials as claimed in claim 1 is characterized in that, concrete steps are:
(1) electrolysis: the percentage by weight proportioning of electrolytic solution is: 2% LiCl, and 2% TEA triethanolamine, 0.5% ethylene glycol, 0.2% diphenylguanidine, 1.5% benzene, surplus is absolute ethyl alcohol;
Anode is the ferrous materials electrolytic sample of mishmetal during electrolysis, and negative electrode is stainless-steel tube; Weigh and record before the sample electrolysis, electrolysis temperature is-5 ℃～-10 ℃, and after electrolysis 2-3 hour, powered-down takes out sample, and weighs after drying, and the variation of front and back weight is the mass M that sample consumes;
(2) separate solid solution rare earth and rare earth second-phase snotter: by filling up at a slow speed quantitative filter paper of 4-6 layer in the Buchner funnel, electrolytic solution after the electrolysis is poured in the Buchner funnel, with preservative film the leak mouth is sealed again, carry out isolated by filtration, get the electrolytic solution filtrate of filtering and impurity removing;
(3) volatilization, dissolving, adjust pH: electrolytic solution filtrate 85 ℃ of lower implementations the in thermostat water bath to filtering and impurity removing are volatilized, and remove lower boiling organism; Again dissolve with deionized water, add hydrochloric acid, destroy residual organic substances and regulate acidity making the pH value be 1-2, surveying the filtrate cumulative volume is V;
(4) be H type strong cation-exchanging resin making the transition, the ion exchange column of packing into, from the filtrate cumulative volume, take out for the treatment of volume be V
1Filtrate, with its slow ion exchange column, make that all ions are all adsorbed by this resin in the solution, be that the hydrochloric acid flushing of 1.7N-2.0N is removed Fe, Mn, Al 2-3 time with concentration then; Hydrochloric acid wash-out take concentration as 4.3N-5.0N obtains pure rare-earth ion solution again;
Regulate acidity and make the pH value for 1-2, get liquid to be measured, the survey volume is V
2
(5) prepare the standard lean solution of one group of concentration known with the rare earth titer, adding 3ml, 0.02%wt Chlorophosphonazo III solution obtain 25ml Comparison of standards solution as developer, measure their absorbance with spectrophotometric, drawing standard working curve, the slope of standard working curve are K;
(6) oxalic acid of 10ml, 10%wt and the Chlorophosphonazo III solution of 3ml, 0.02%wt will be added in a certain amount of liquid to be measured, supply liquid to be measured and obtain 25ml solution to be measured, shake up rear with its absorbance A of spectrophotometer measurement, with thickness be b cuvette, do reference with reagent blank, recycle drawn standard working curve and can calculate the concentration of solution Rare Earth Ion, obtain the solid solubility of rare earth element in ferrous materials.
3. the method for mishmetal solid solubility in the mensuration ferrous materials as claimed in claim 2 is characterized in that, the solid solubility computing formula of rare earth element in ferrous materials is:
In the formula: A is the absorbance of liquid to be measured, and V is the filtrate cumulative volume behind volatilization, dissolving, the adjust pH, V
1For from the filtrate cumulative volume, take out for the treatment of the volume of filtrate, V
2Be the liquor capacity of collecting after handling, K is the slope of standard working curve, and b is the thickness of cuvette, and M is the quality that sample consumes when electrolysis.
4. the method for mishmetal solid solubility in the mensuration ferrous materials as claimed in claim 3 is characterized in that, anode iron clamp and sample contact position can not be immersed in the electrolytic solution when electrolysis.
5. the method for mishmetal solid solubility in the mensuration ferrous materials as claimed in claim 4 is characterized in that, the standard lean solution of preparing one group of concentration known with the rare earth titer has 4 kinds of concentration at least.
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| CN201210569286.6A CN103063589B (en) | 2012-12-25 | 2012-12-25 | Method for measuring misch metal solid solubility in steel and iron materials |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568921A (en) * | 2014-12-29 | 2015-04-29 | 内蒙古包钢钢联股份有限公司 | Method for determining content of single rear earth-included sulfide in steel |
| CN105954139A (en) * | 2016-05-04 | 2016-09-21 | 内蒙古工业大学 | Method for directly measuring solid solubility of rare earth in rare earth magnesium alloy |
| CN113109321A (en) * | 2021-04-07 | 2021-07-13 | 北京首钢吉泰安新材料有限公司 | Method for measuring content of solid solution yttrium in iron-chromium-aluminum alloy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120167A (en) * | 1994-09-12 | 1996-04-10 | 北京科技大学 | Direct measuring method of steel single-rare-earth solid solution capacity |
| JP3968055B2 (en) * | 2002-06-07 | 2007-08-29 | 新日本製鐵株式会社 | Method for quantifying specific components contained in base metal by form by emission spectroscopic analysis, computer program, and computer-readable storage medium |
| JP2007240302A (en) * | 2006-03-08 | 2007-09-20 | Jfe Steel Kk | Quantification method of solid solution component in free lime |
-
2012
- 2012-12-25 CN CN201210569286.6A patent/CN103063589B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120167A (en) * | 1994-09-12 | 1996-04-10 | 北京科技大学 | Direct measuring method of steel single-rare-earth solid solution capacity |
| JP3968055B2 (en) * | 2002-06-07 | 2007-08-29 | 新日本製鐵株式会社 | Method for quantifying specific components contained in base metal by form by emission spectroscopic analysis, computer program, and computer-readable storage medium |
| JP2007240302A (en) * | 2006-03-08 | 2007-09-20 | Jfe Steel Kk | Quantification method of solid solution component in free lime |
Non-Patent Citations (1)
| Title |
|---|
| 李代钟等: "《铈在钢中固溶度的研究》", 《中国稀土学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568921A (en) * | 2014-12-29 | 2015-04-29 | 内蒙古包钢钢联股份有限公司 | Method for determining content of single rear earth-included sulfide in steel |
| CN104568921B (en) * | 2014-12-29 | 2018-02-27 | 内蒙古包钢钢联股份有限公司 | Single rare earth is mingled with the assay method of sulfide content in steel |
| CN105954139A (en) * | 2016-05-04 | 2016-09-21 | 内蒙古工业大学 | Method for directly measuring solid solubility of rare earth in rare earth magnesium alloy |
| CN113109321A (en) * | 2021-04-07 | 2021-07-13 | 北京首钢吉泰安新材料有限公司 | Method for measuring content of solid solution yttrium in iron-chromium-aluminum alloy |
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