热处理对Mg-10Gd-2.5Nd-0.5Zr合金组织和耐蚀性能的影响

doi:10.11902/1005.4537.2015.040

中国腐蚀与防护学报

2016, Vol. 36

Issue (2): 143-149 DOI: 10.11902/1005.4537.2015.040

本期目录 | 过刊浏览

热处理对Mg-10Gd-2.5Nd-0.5Zr合金组织和耐蚀性能的影响

马旭^1,²,李全安^1,^2,³(

),井晓天¹

1. 西安理工大学材料科学与工程学院西安 710048
2. 河南科技大学材料科学与工程学院洛阳 471023
3. 河南科技大学有色金属共性技术河南省协同创新中心洛阳 471023

Influence of Heat Treatment on Microstructure and Corrosion Resistance of Mg-10Gd-2.5Nd-0.5Zr Alloy

Xu MA^1,²,Quan'an LI^1,^2,³(

),Xiaotian JING¹

1. College of Materials Science and Technology, Xi'an University of Technology, Xi'an 710048, China
2. College of Materials Science and Technology, Henan University of Science and Technology, Luoyang 471023, China
3. Collaborative Innovation Center of Nonferrous Metals, Henan University of Science and Technology, Luoyang 471023, China

全文: PDF(1184 KB) HTML

摘要:

通过OM,XRD,TEM和SEM等手段研究了热处理前后Mg-10Gd-2.5Nd-0.5Zr (质量分数,%) 合金的显微组织形貌,并在3.5% (质量分数)NaCl溶液中进行了0~96 h的失重腐蚀实验。结果表明：合金铸态组织由α-Mg基体和粗大的枝晶β相组成,热处理后,合金中的β相经溶解再析出过程,由断续网状转变为方块颗粒状;在3.5%NaCl溶液中,经热处理后,合金的耐蚀性能明显提高,其平均腐蚀速率由铸态时的0.74 mgcm^-2d^-1,降低到固溶态时的0.41 mgcm^-2d^-1和时效态时的0.35 mgcm^-2d^-1,且腐蚀产物以Mg(OH)₂为主。

关键词 ：热处理, Mg-10Gd-2.5Nd-0.5Zr合金, 显微组织, 耐蚀性能

Abstract：

The microstructure of Mg-10Gd-2.5Nd-0.5Zr (mass fraction, %) alloy after solid solution and aging treatment were characterized by means of OM, XRD, TEM and SEM. The average corrosion rate in 3.5% (mass fraction) NaCl solution was measured for 0~96 h. The results show that the microstructure of the as-cast alloy is composed of α-Mg matrix and coarse dentritic crystal β phase. After heat treatment, the β phase has experienced a course of dissolution and then precipitation, while the discontinued net-like β-phase transformed into cuboid-shaped particles due to the solution and aging treatment. The heat treatments are beneficial to the corrosion resistant of the alloy in 3.5%NaCl solution, while its corrosion rate was 0.74 mgcm^-2d^-1 for the as-cast, 0.41 mgcm^-2d^-1 for the solid solution treated and 0.35 mgcm^-2d^-1 for the aging treated ones respectively. The corrosion products of the alloy is mainly composed of Mg(OH)₂.

Key words： heat treatment Mg-10Gd-2.5Nd-0.5Zr alloy microstructure corrosion resistance

基金资助:国家自然科学基金项目 (51171059) 和河南省基础与前沿技术研究计划项目 (102300410018) 资助

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	马旭
	李全安
	井晓天
44.8K

引用本文:

马旭,李全安,井晓天. 热处理对Mg-10Gd-2.5Nd-0.5Zr合金组织和耐蚀性能的影响[J]. 中国腐蚀与防护学报, 2016, 36(2): 143-149.
Xu MA, Quan'an LI, Xiaotian JING. Influence of Heat Treatment on Microstructure and Corrosion Resistance of Mg-10Gd-2.5Nd-0.5Zr Alloy. Journal of Chinese Society for Corrosion and protection, 2016, 36(2): 143-149.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2015.040 或 https://www.jcscp.org/CN/Y2016/V36/I2/143

图1 Mg-10Gd-2.5Nd-0.5Zr合金热处理前后的显微组织

图2 Mg-10Gd-2.5Nd-0.5Zr合金热处理前后的SEM像

图3 Mg-10Gd-2.5Nd-0.5Zr合金热处理前后的TEM像

图4 铸态、固溶态和时效态Mg-10Gd-2.5Nd-0.5Zr合金的腐蚀速率随时间的变化曲线

图5 Mg-10Gd-2.5Nd-0.5Zr合金腐蚀48 h后的宏观腐蚀形貌

图6 Mg-10Gd-2.5Nd-0.5Zr合金腐蚀48 h后的表面形貌

图7 Mg-10Gd-2.5Nd-0.5Zr合金表面腐蚀产物的XRD谱

[1]	Fu S L, Li Q A, Jing X T, et al.Effects of heat treatment on microstructure of Mg-12Gd-2Y-0.5Sm-0.5Sb-0.5Zr alloy[J]. Trans. Mater. Heat Treat., 2014, 35(4): 47
[1]	(付三玲, 李全安, 井晓天等. 热处理对Mg-12Gd-2Y-0.5Sm-0.5Sb-0.5Zr显微组织的影响[J]. 材料热处理学报, 2014, 35(4): 47)
[2]	Pang S, Wu G H, Liu W C, et al.Influence of cooling rate on solidification behavior of sand-cast Mg-10Gd-3Y-0.4Zr alloy[J]. Trans. Nonferrous Met. Soc. China, 2014, 24: 3413
[3]	Wang Z Q, Zhang B, Li D J, et al.Effect of heat treatment on microstructures and mechanical properties of high vacuum die casting Mg-8Gd-3Y-0.4Zr magnesium alloy[J]. Trans. Nonferrous Met. Soc. China, 2014, 24: 3762
[4]	Ding W J.Magnesium Science and Technology [M]. Beijing: Science Press, 2007: 64
[4]	(丁文江. 镁合金科学与技术 [M]. 北京: 科学出版社, 2007: 64)
[5]	Cao L, Liu W C, Wu G H, et al.Effect of heat treatment on microstr-uctures and mechanical properties of sand-cast Mg-10Gd-3Y-0.5Zr magnesium alloy[J]. Trans. Nonferrous Met. Soc. China, 2014, 24: 611
[6]	Zhang Q, Li Q A, Jing X T, et al.Microstructure and mechanical properties of Mg-10Y-1.5Sm alloy[J]. Trans. Mater. Heat Treat., 2011, 32(1): 24
[6]	(张清, 李全安, 井晓天等. Mg-10Y-1.5Sm合金的组织和力学性能[J]. 材料热处理学报, 2011, 32(1): 24)
[7]	Wu D, Tang W N, Chen R S, et al.Strength enhancement of Mg-3Gd-1Zn alloy by cold rolling[J]. Trans. Nonferrous Met. Soc. China, 2013, 23: 301
[8]	Mao P L, Yu J C, Liu Z, et al.Dynamic mechanical property and failure behavior extruded Mg-Gd-Y alloy under high strain rate co- mpression[J]. Chin. J. Nonferrous Met., 2013, 23(4): 3066
[8]	(毛萍莉, 于金程, 刘正等. 挤压态Mg-10Gd-4.8Y-0.6Zr镁合金动态压缩力学性能与失效行为[J]. 中国有色金属学报, 2013, 23(4): 3066)
[9]	Li Q A, Li K J, Zhang Q.Effects of Sm on microstructure and mechanical properties of aged Mg-12Gd-2Y-0.5Zr alloy[J]. Trans. Mater. Heat Treat., 2011, 32(12): 84
[9]	(李全安, 李克杰, 张清. Sm对时效Mg-12Gd-2Y-0.5Zr alloy合金组织和力学性能的影响[J]. 材料热处理学报, 2011, 32(12): 84)
[10]	Li L J, Wang S, Pan F S, et al.Corrosion behavior of AM60 magnesium alloys in automobile engine coolants[J]. Electrochemistry, 2010, 49(16): 425
[10]	(李凌杰, 王莎, 潘复生等. AM60镁合金在汽车发动机冷却液中的腐蚀电化学行为[J]. 电化学, 2010, 49(16): 425)
[11]	Huang L, Huang Y W, Wang C, et al.Study on corrosion product film of Mg-Al alloys containing rare earth element in NaCl solution[J]. J. Chin. Soc. Corros. Prot., 2002, 22: 167
[11]	(黄亮, 黄元伟, 王晨等. 含稀土元素的Mg-Al合金在NaCl溶液中腐蚀产物膜的研究[J]. 中国腐蚀与防护学报, 2002, 22: 167)
[12]	Zhou J, Feng Z Y, Zhang J L, et al.Effect of Nd addition on corrosion resistance of AM60 magnesium alloy[J]. J. Chin. Soc. Corros. Prot., 2014, 34: 185
[12]	(周京, 冯芝勇, 张金玲等. 稀土Nd含量对AM60镁合金耐蚀性能的影响[J]. 中国腐蚀与防护学报, 2014, 34: 185)
[13]	Liu Z L, Zhu X C, Zhou G B, et al.Effects of Sb addition on corrosion properties of Mg-5Al-2Sr alloy[J]. J. Chin. Soc. Corros. Prot., 2012, 32: 478
[13]	(刘子利, 朱晓春, 周桂斌等. Sb对Mg-5Al-2Sr合金耐腐蚀性能的影响[J]. 中国腐蚀与防护学报, 2012, 32: 478)
[14]	Yi J L, Zhang X M.Effects of Ce on microstructure and corrosion resistance of Mg-9Gd-4Y-1Nd-0.6Zr alloy[J]. J. Chin. Soc. Corros. Prot., 2012, 32: 262
[14]	(易建龙, 张新明. Ce对Mg-9Gd-4Y-1Nd-0.6Zr合金微观组织和耐蚀性的影响[J]. 中国腐蚀与防护学报, 2012, 32: 262)
[15]	Wu G H, Fan Y, Zhai C Q, et al.Effect of La on the corrosion resistance of AZ91D magnesium alloy in NaCl solution[J]. Acta Metal. Sin., 2008, 44(10): 1247
[15]	(吴国华, 樊昱, 翟春泉等. 稀土La对AZ91D镁合金在NaCl溶液中耐蚀性的影响[J]. 金属学报, 2008, 44(10): 1247
[16]	Zeng R C, Guo X L, Liu C L, et al.Study on corrosion of medical Mg-Ca and Mg-Li-Ca alloys[J]. Acta Metall. Sin., 2011, 47(11): 1477
[16]	(曾荣昌, 郭小龙, 刘成龙等. 医用Mg-Ca和Mg-Li-Ca合金腐蚀研究[J]. 金属学报, 2011, 47(11): 1477)
[17]	Zhang Y C, Wang J C, Lv W Q.Corrosion behavior of Mg-Zn-Y-Zr alloys in NaCl solution[J]. Acta Metall. Sin., 2011, 47(9): 1174
[17]	(张亚丛, 王锦程, 吕文泉. Mg-Zn-Y-Zr合金在NaCl溶液中的腐蚀行为[J]. 金属学报, 2011, 47(9): 1174)
[18]	Zhang J L, Liu Y L, Zhou J, et al.Influence of T6 treatment on corrosion resistance of Mg-9Al-Zn-0.16La alloy[J]. Trans. Mater. Heat Treat., 2014, 35(5): 64
[18]	(张金玲, 刘阳力, 周京等. T6处理对Mg-9Al-Zn-0.16La合金耐蚀性能的影响[J]. 材料热处理学报, 2014, 35(5): 64)
[19]	Li K J, Li Q A.Effects of addition of Sm and Sb on microstructure and mechanical properties of aged Mg-12Gd-2Y-0.5Zr alloy[J]. Trans. Mater. Heat Treat., 2011, 32(5): 110
[19]	(李克杰, 李全安. Sm和Sb对时效态Mg-12Gd-2Y-0.5Zr 合金组织与力学性能的影响[J]. 材料热处理学报, 2011, 32(5): 110)

[1]	马鸣蔚, 赵志浩, 荆思文, 于文峰, 谷义恩, 王旭, 吴明. 17-4 PH不锈钢在含SRB的模拟海水中的应力腐蚀开裂行为研究[J]. 中国腐蚀与防护学报, 2020, 40(6): 523-528.
[2]	刘海霞, 黄峰, 袁玮, 胡骞, 刘静. 690 MPa级高强贝氏体钢在模拟乡村大气中的腐蚀行为[J]. 中国腐蚀与防护学报, 2020, 40(5): 416-424.
[3]	张瑞,李雨,关蕾,王冠,王福雨. 热处理对激光选区熔化Ti6Al4V合金电化学腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2019, 39(6): 588-594.
[4]	王凯, 易耀勇, 卢清华, 易江龙, 江泽新, 马金军, 张宇. 基于窄间隙焊接的热模拟峰值温度对Q690高强钢腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2018, 38(5): 447-454.
[5]	黄勇, 王善林, 王帅星, 龚玉兵, 柯黎明. 含硫化物夹杂铁基块体非晶合金在HCl溶液中的腐蚀行为[J]. 中国腐蚀与防护学报, 2018, 38(2): 203-209.
[6]	李广宇, 雷明凯. γ_Ν相在硼酸溶液中钝化膜的组成及其半导体特性研究[J]. 中国腐蚀与防护学报, 2018, 38(1): 47-53.
[7]	张新芳,欧孝通,刘雷,雷惊雷,李凌杰. 镁合金表面无机-有机杂化硅膜的制备及其防护性能研究[J]. 中国腐蚀与防护学报, 2017, 37(5): 435-443.
[8]	牛振国, 郭浦山, 叶宏, 杨丽景, 许赪, 宋振纶. Zn-7Mg合金热处理显微组织演变及耐蚀性能研究[J]. 中国腐蚀与防护学报, 2017, 37(4): 347-353.
[9]	谭何灵,周成,刘希辉,曹国明,张菁. Cr对Q420钢在高盐度大气环境下耐蚀性的影响[J]. 中国腐蚀与防护学报, 2017, 37(3): 267-372.
[10]	滕彧,陈旭,何川,王义闯,王冰. 显微组织对X70钢在含有硫酸盐还原菌的3.5%NaCl溶液中腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2017, 37(2): 168-174.
[11]	徐相英,葛芳芳,李朋,舒瑞,黄峰,李谋成. 非晶Ti-B基涂层的力学和耐蚀性能研究[J]. 中国腐蚀与防护学报, 2016, 36(6): 573-579.
[12]	张建春,左龙飞,蒋金洋,麻晗,宋丹. 耐海水腐蚀钢筋00Cr10MoV的组织结构及性能研究[J]. 中国腐蚀与防护学报, 2016, 36(4): 363-369.
[13]	苏艳,张伦武,钟勇. 5A90铝锂合金显微组织及海洋大气环境腐蚀行为[J]. 中国腐蚀与防护学报, 2016, 36(3): 260-266.
[14]	睢文杰,赵文杰,张星,秦立光,彭叔森,乌学东,薛群基. 铜合金表面巯基官能有机硅溶胶-凝胶涂层中TEOS含量对其防腐性能的影响[J]. 中国腐蚀与防护学报, 2016, 36(1): 52-58.
[15]	郭跃岭,韩恩厚,王俭秋. 锻后热处理对核级316LN不锈钢在沸腾MgCl₂溶液中应力腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2015, 35(6): 488-495.

Viewed

Full text

Abstract

Cited

Shared

Discussed