CN109680192A - 一种Al-Mg-Mn-Er-Zr合金热变形及稳定化退火工艺及材料 - Google Patents

一种Al-Mg-Mn-Er-Zr合金热变形及稳定化退火工艺及材料 Download PDF

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CN109680192A
CN109680192A CN201910087452.0A CN201910087452A CN109680192A CN 109680192 A CN109680192 A CN 109680192A CN 201910087452 A CN201910087452 A CN 201910087452A CN 109680192 A CN109680192 A CN 109680192A
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alloy
annealing
stabilizing annealing
stabilizing
technique
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聂祚仁
梁岳莹
黄晖
高坤元
文胜平
吴晓蓝
李红梅
魏午
郭骁
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Beijing University of Technology
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Beijing University of Technology
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08Alloys based on aluminium with magnesium as the next major constituent with silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

一种Al‑Mg‑Mn‑Er‑Zr合金热变形及稳定化退火工艺及材料,属于金属材料技术领域。Mg,5.5%‑6.5%;Mn,0.7%‑1.1%;Er,0.02%‑0.3%;Zr,0.02%‑0.2%;Fe<0.4;Si<0.4;Cu<0.1;Zn<0.2余量为Al;将铸锭在250℃‑300℃热变形后进行稳定化退火,退火温度为280~320℃。该工艺下制备的板材具有良好的拉伸性能,同时改善了合金的耐腐蚀性能。

Description

一种Al-Mg-Mn-Er-Zr合金热变形及稳定化退火工艺及材料
技术领域
本发明涉及一种含Er,Zr微合金元素,Mg含量在5.5wt.%-6.5wt.%的高镁铝合金热变形及稳定化退火板材,属于金属材料技术领域。
背景技术
5xxx系铝合金具有较低的密度,良好的加工、焊接、力学以及耐腐蚀性能,尤其适用于一些处于腐蚀环境下使用的结构体。因而广泛应用于航空航天、航海、船舶等领域。而且传统的Al-Mg系合金属于热处理不可强化合金,主要通过固溶强化、加工硬化和微合金化的手段来提高该系合金的综合性能。
在5xxx系铝合金中添加微量稀土元素能够显著改善合金的微观组织结构,从而提升铝合金的强韧性、耐腐蚀和疲劳等综合性能。大量研究表明,微合金元素Er的添加不仅能够显著改善合金的综合性能,还能够降低合金的材料成本。
铝镁合金中当Mg元素含量高于3.5%时,过饱和的Mg原子会在基体中析出,容易在晶界处及第二相粒子周围形成连续的网状β相(Al3Mg2),造成合金的耐腐蚀性能恶化。通过稳定化退火工艺,可以使材料内部形成较多的亚晶组织,从而获得屈服强度、延伸率和耐腐蚀性能良好的含Er高镁铝合金板材。因此,研究高镁铝合金热变形及稳定化退火板材对生产工艺具有重要意义。
发明内容
本发明目的在于提供一种适用于含Er,Zr微合金元素,Mg含量在5.5wt.%-6.5wt.%的高镁铝合金热变形及稳定化退火板材的制备工艺。由于微合金化形成的第二相粒子对位错、晶界和亚晶界具有钉扎作用,可以有效提高合金的再结晶温度,因此提高稳定化退火温度可以在缩短退火时间的同时获得力学和耐腐蚀性能良好的含Er高镁铝合金板材,为工业化生产提供了可靠的依据。
本发明提供一种适用于含Er、Zr微合金元素,Mg含量在5.5wt.%-6.5wt.%的高镁铝合金热变形及稳定化退火板材的制备工艺,包括以下步骤:
所要制备的合金成分为(质量百分比):Mg,5.5%-6.5%;Mn,0.7%-1.1%;Er,0.02%-0.3%;Zr,0.02%-0.2%;Fe<0.4;Si<0.4;Cu<0.1;Zn<0.2余量为Al;将铸锭在250℃-300℃热变形后进行稳定化退火,退火温度为280~320℃。
进一步优选在280~320℃保温1-2小时。
本发明的有益效果:
本发明对铸锭在250℃以上热变形后进行280~320℃稳定化退火,该工艺下制备的板材具有良好的拉伸性能,同时改善了合金的耐腐蚀性能。
具体实施方式
下面结合实施例对本发明做进一步说明,但本发明并不限于以下实施例。
实施例1(即对比例):
将Al-Mg-Mn-Er-Zr合金铸锭进行在250℃以上进行热变形。合金成分采用X射线荧光(XRF)进行分析,具体成分如表1所示。
表1实验合金实际成分(wt.%)
实施例2:
将实施例1中的热变形板材分别在280℃、290℃、300℃、310℃及320℃下进行稳定化退火,退火时间为1~2h,并对稳定化退火后的实验合金进行拉伸性能测试、晶间腐蚀失重实验(美国材料试验协会标准ASTM G67-04)和剥落腐蚀实验(美国材料试验协会标准ASTM G66-99),测试结果如表2所示。
表2实验合金在280-320℃稳定化退火1-2h后的拉伸、晶间腐蚀和剥落腐蚀测试结果。
由表2可知,实验合金H112态在不同稳定化退火工艺处理后,合金的抗拉强度和屈服强度在不同温度退火1h后均有所降低,延伸率略有上升,同时随着温度的升高,合金的强度下降,延伸率上升;而在相同温度不同时间退火后,1h和2h退火后的强度变化不明显,延伸率也趋于一致,且都具有较好的强度和塑性的匹配性。
H112态合金失重值处在晶间腐蚀严重腐蚀区,同时剥落腐蚀形貌根据标准评为EB级,耐腐蚀性能较差;而在280-320℃退火1-2h后失重值均在15mg/cm2以下,且剥蚀情况均有所改善,表明上述稳定化退火处理得到的板材具有良好的拉伸及耐腐蚀性能,稳定化效果较好。

Claims (2)

1.一种Al-Mg-Mn-Er-Zr合金热变形及稳定化退火工艺,其特征在于,包括以下步骤:
所要制备的合金成分为(质量百分比):Mg,5.5%-6.5%;Mn,0.7%-1.1%;Er,0.02%-0.3%;Zr,0.02%-0.2%;Fe<0.4;Si<0.4;Cu<0.1;Zn<0.2余量为Al;将铸锭在250℃-300℃热变形后进行稳定化退火,退火为温度280~320℃保温1-2小时。
2.按照权利要求1所述的工艺制备得到的Al-Mg-Mn-Er-Zr合金。
CN201910087452.0A 2019-01-29 2019-01-29 一种Al-Mg-Mn-Er-Zr合金热变形及稳定化退火工艺及材料 Pending CN109680192A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112553512A (zh) * 2020-12-02 2021-03-26 中铝材料应用研究院有限公司 高热稳定性、焊接性和耐蚀性的铝-镁合金板材及其用途

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1682688B1 (de) * 2003-11-11 2010-01-06 EADS Deutschland GmbH Al-Mg-Si-Aluminium-Gusslegierung mit Scandium
CN105369084A (zh) * 2015-12-04 2016-03-02 北京工业大学 一种微量添加Er的高镁铝合金均匀化退火及挤压变形工艺
WO2017067647A1 (de) * 2015-10-19 2017-04-27 Trimet Aluminium Se Aluminiumlegierung
CN108220716A (zh) * 2018-01-22 2018-06-29 合肥工业大学 一种具有优异冲压成形性能的Al-Mg-Si-Cu-Zr-Er合金及其制备方法
CN108330419A (zh) * 2018-03-16 2018-07-27 北京工业大学 一种Al-Mg-Mn-Er-Zr合金板材的热变形及其稳定化工艺

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1682688B1 (de) * 2003-11-11 2010-01-06 EADS Deutschland GmbH Al-Mg-Si-Aluminium-Gusslegierung mit Scandium
WO2017067647A1 (de) * 2015-10-19 2017-04-27 Trimet Aluminium Se Aluminiumlegierung
CN105369084A (zh) * 2015-12-04 2016-03-02 北京工业大学 一种微量添加Er的高镁铝合金均匀化退火及挤压变形工艺
CN108220716A (zh) * 2018-01-22 2018-06-29 合肥工业大学 一种具有优异冲压成形性能的Al-Mg-Si-Cu-Zr-Er合金及其制备方法
CN108330419A (zh) * 2018-03-16 2018-07-27 北京工业大学 一种Al-Mg-Mn-Er-Zr合金板材的热变形及其稳定化工艺

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112553512A (zh) * 2020-12-02 2021-03-26 中铝材料应用研究院有限公司 高热稳定性、焊接性和耐蚀性的铝-镁合金板材及其用途

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