CN105296900A - Retrogression and re-aging process for improving performance of Al-Mg alloy - Google Patents
Retrogression and re-aging process for improving performance of Al-Mg alloy Download PDFInfo
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- CN105296900A CN105296900A CN201410294396.5A CN201410294396A CN105296900A CN 105296900 A CN105296900 A CN 105296900A CN 201410294396 A CN201410294396 A CN 201410294396A CN 105296900 A CN105296900 A CN 105296900A
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Abstract
The invention discloses a retrogression and re-aging process for improving the performance of Al-Mg alloy to meet industrial requirements. The process comprises the steps that firstly, the Al-Mg alloy is subjected to solution treatment, heat preservation is conducted for 10 h at the temperature of 540 DEG C, and then the Al-Mg alloy is taken out for water quenching; pre-aging is conducted for 10 h at the temperature of 170 DEG C; after pre-aging is conducted, the Al-Mg alloy is subjected to heat treatment and retrogression treatment immediately at the temperature of 230 DEG C for 10 min; and finally re-aging is conducted.
Description
Technical field
The present invention relates to a kind of regression and re-ageing technique improving Al-Mg alloy property, belong to aluminum magnesium alloy Performance Optimization technique field.
Background technology
Summary of the invention
The technical problem to be solved in the present invention: provide a kind of regression and re-ageing technique improving Al-Mg alloy property, is intended to improve Al-Mg alloy property, to overcome the deficiencies in the prior art.
Technical scheme of the present invention:
Improve a regression and re-ageing technique for Al-Mg alloy property, first, solution treatment is carried out to Al-Mg alloy, at 540 DEG C, be incubated 10h, then take out and carry out shrend; Preageing 10h is carried out respectively again at 170 DEG C; Immediately Al-Mg alloy is put into 230 DEG C of thermal treatments after preageing and carry out regression treatment, regression time is 10min; Finally carry out timeliness again.
As preferably, described institution of prescription is again identical with preageing.
Beneficial effect of the present invention:
Regression and re-ageing reinforcing process condition of the present invention, can impel T-phase to grow up returning the high temperature in stage, and T-phase is evenly distributed in alloy substrate and forms dispersion-strengthened, and the performance of alloy can be made to effectively improve.
accompanying drawing illustrates:
Fig. 1 is process flow sheet.
embodiment:
Embodiment:
Material used in the present invention is high purity alumina-magnesia aluminium alloy, and also have other alloying elements as Ni, Ti, Cd, Cr, Zr, B, Re etc., its chemical composition sees the following form 1:
As shown in Figure 1, processing parameter is as shown in table 2 for experiment flow:
First, alloy carries out solution treatment, at 540 DEG C, be incubated 10h, then all takes out and carries out shrend.Again respectively at 130 DEG C, carry out preageing at 150 DEG C and 170 DEG C, corresponding aging time is at each temperature respectively 15h, 12h, 10h.Immediately sample is put into 230 DEG C of thermal treatments after preageing and carry out regression treatment, often organize sample regression time and be set to 6min, 10min, 15min, 20min respectively.Finally carry out timeliness again, then institution of prescription is identical with preageing.Experiment is carried out in different heat treatment stove, and in order to prevent affecting heat-treat condition during sampling, the identical but sample that regression time is different of aging temp carries out in different heat treatment stove.
Adopt HB-3000 Brinell's machine to carry out hardness measurement, adopt CMT5205 electronic universal tester to carry out tension test test, result is as follows:
As seen from the above table, return 10min+170 DEG C of timeliness 10h at 170 DEG C timeliness 10h+230 DEG C, now the Brinell hardness of sample is for being 107HB, and tensile strength is 430.19, and plasticity is 6.18%, and performance boost is obvious.
Claims (2)
1. improve a regression and re-ageing technique for Al-Mg alloy property, it is characterized in that: first, solution treatment is carried out to Al-Mg alloy, at 540 DEG C, be incubated 10h, then take out and carry out shrend; Preageing 10h is carried out respectively again at 170 DEG C; Immediately Al-Mg alloy is put into 230 DEG C of thermal treatments after preageing and carry out regression treatment, regression time is 10min; Finally carry out timeliness again.
2. a kind of regression and re-ageing technique improving Al-Mg alloy property according to claim 1, is characterized in that: described institution of prescription is again identical with preageing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410294396.5A CN105296900A (en) | 2014-06-27 | 2014-06-27 | Retrogression and re-aging process for improving performance of Al-Mg alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410294396.5A CN105296900A (en) | 2014-06-27 | 2014-06-27 | Retrogression and re-aging process for improving performance of Al-Mg alloy |
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| CN105296900A true CN105296900A (en) | 2016-02-03 |
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| CN201410294396.5A Pending CN105296900A (en) | 2014-06-27 | 2014-06-27 | Retrogression and re-aging process for improving performance of Al-Mg alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148865A (en) * | 2016-07-27 | 2016-11-23 | 北京科技大学 | A kind of ageing hot processing method of Al Mg Zn alloy |
| CN106834982A (en) * | 2016-12-14 | 2017-06-13 | 上海友升铝业有限公司 | A kind of Technology for Heating Processing for improving 6082 aluminium alloy capabilities |
-
2014
- 2014-06-27 CN CN201410294396.5A patent/CN105296900A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148865A (en) * | 2016-07-27 | 2016-11-23 | 北京科技大学 | A kind of ageing hot processing method of Al Mg Zn alloy |
| CN106148865B (en) * | 2016-07-27 | 2018-05-01 | 北京科技大学 | A kind of ageing hot processing method of Al-Mg-Zn alloys |
| CN106834982A (en) * | 2016-12-14 | 2017-06-13 | 上海友升铝业有限公司 | A kind of Technology for Heating Processing for improving 6082 aluminium alloy capabilities |
| CN106834982B (en) * | 2016-12-14 | 2019-02-15 | 上海友升铝业有限公司 | A kind of heat treatment process improving 6082 aluminium alloy capabilities |
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Application publication date: 20160203 |