ZL111铝合金液压制动主缸的开裂分析

doi:10.13251/j.issn.0254-6051.2021.04.044

金属热处理 ›› 2021, Vol. 46 ›› Issue (4): 232-235.DOI: 10.13251/j.issn.0254-6051.2021.04.044

ZL111铝合金液压制动主缸的开裂分析

吴冰冰¹, 曾志卫¹, 王君兆^1,2, 邓番林¹, 焦广胜²

1.深圳市美信咨询有限公司, 广东深圳 518108;
2.深圳市美信检测技术股份有限公司, 广东深圳 518108

收稿日期:2020-10-14 出版日期:2021-04-25 发布日期:2021-05-08
作者简介:吴冰冰(1988—),男,工程师,硕士,主要研究方向为机械产品失效分析以及金属材料性能表征,E-mail:wbb@2012.cqut.edu.cn

Cracking analysis of ZL111 aluminum alloy hydraulic brake master cylinder

Wu Bingbing¹, Zeng Zhiwei¹, Wang Junzhao^1,2, Deng Fanlin¹, Jiao Guangsheng²

1. Meixin Consulting Co., Ltd., Shenzhen Guangdong 518108, China;
2. Meixin Testing Technology Co., Ltd., Shenzhen Guangdong 518108, China

Received:2020-10-14 Online:2021-04-25 Published:2021-05-08

摘要/Abstract

摘要： ZL111铝合金液压制动主缸体在外观检测时发现主缸开裂,密封检测漏气。为查找铝合金主缸开裂原因,对主缸裂纹、断口形貌、显微组织进行观察,检测其化学成分、相变点。结果表明,主缸的失效是因为组织存在过烧缺陷,降低了材料强度,且晶界存在呈圆角状分布的脆性共晶硅相,并聚集长大,进一步弱化晶界。在淬火应力作用下,缸体开裂,后续加工过程中裂纹扩展至宏观裂纹。讨论并分析主缸开裂的根本原因是成分中Mg元素含量偏高,降低了引起主缸过烧的温度。

关键词: ZL111铝合金, 淬火应力, 过烧, 裂纹, Mg元素

Abstract: ZL111 aluminum alloy hydraulic brake master cylinder was found cracking during the appearance inspection, and seal inspection revealed its leakage. In order to find out the reasons for the cracking of the cylinder, the cracks, fracture morphology and microstructure of the cylinder were observed, and its chemical composition and phase transition point were detected. The results show that the failure of the cylinder is due to the presence of over burning defects in the structure, which reduces the strength of the material. The rounded and brittle eutectic silicon phase is distributed in the grain boundary, which aggregates and grows, and further weakens the grain boundary. Under the effect of quenching stress, the cylinder cracks, and the cracks expand to macroscopic cracks during the subsequent processing. It is discussed and analyzed that the root cause of the cracking of the cylinder is the high content of Mg element in the composition, which reduces the temperature that limits to cause over burning.

Key words: ZL111 aluminum alloy, quenching stress, over burning, crack, Mg element

中图分类号:

TG146.2

吴冰冰, 曾志卫, 王君兆, 邓番林, 焦广胜. ZL111铝合金液压制动主缸的开裂分析[J]. 金属热处理, 2021, 46(4): 232-235.

Wu Bingbing, Zeng Zhiwei, Wang Junzhao, Deng Fanlin, Jiao Guangsheng. Cracking analysis of ZL111 aluminum alloy hydraulic brake master cylinder[J]. Heat Treatment of Metals, 2021, 46(4): 232-235.

参考文献

[1] 胡建华,刘林海.挤压铸造汽车制动主缸的研究与应用[J].铸造,2002,51(4):214-217.
Hu Jianhua,Liu Linhai.Research and application of squeeze cast brake pump for automobile[J].Foundry,2002,51(4):214-217.
[2] 梁智萍,关创,印厚尚,等.铸造Al-Si-Cu系合金及复合材料研究现状与展望[J].热加工工艺,2019,48(20):15-19.
Liang Zhiping,Guan Chuang,Yin Houshang,et al.Research status and prospect of Al-Si-Cu cast alloy and composites[J].Hot Working Technology,2019,48(20):15-19.
[3] 王孟君,黄电源,姜海涛.汽车用铝合金的研究进展[J].金属热处理,2006,31(9):34-38.
Wang Mengjun,Huang Dianyuan,Jiang Haitao.Research progress of aluminium alloys for the automotive industry[J].Heat Treatment of Metals,2006,31(9):34-38.
[4] 王志明.ZL114A铝合金电动汽车底盘横梁开裂失效分析[J].金属热处理,2019,44(S1):142-146.
Wang Zhiming.Crack failure analysis of ZL114A aluminum alloy electric vehicle chassis beam[J].Heat Treatment of Metals,2019,44 (S1):142-146.
[5] 付长明,董晨,屈伸,等.汽车发动机悬置支臂断裂失效分析[J].金属热处理,2011,36(S1):106-110.
Fu Changming,Dong Chen,Qu Shen,et al.Failure analysis on fracture of engine suspension arms of car[J].Heat Treatment of Metals,2011,36(S1):106-110.
[6] 姚辉,陈名海,刘宁,等.Mg含量对ADC12铝合金组织及性能的影响[J].热处理,2011,26(4):48-52.
Yao Hui,Chen Minghai,Liu Ning,et al.Effect of magnesium content on microstructure and properties of ADC12 aluminium alloy[J].Heat Treatment,2011,26(4):48-52.
[7] 侯立群,陈小辉,邢志媛,等.新型Al-Si-Cu-Mg系合金热处理工艺的研究[J].兵器材料科学与工程,2013,36(6):18-21.
Hou Liqun,Chen Xiaohui,Xing Zhiyuan,et al.Heat treatment process of new Al-Si-Cu-Mg alloy[J].Ordnance Material Science and Engineering,2013,36(6):18-21.
[8] 中国机械工程学会热处理学会.热处理手册工艺基础第1卷[M].4版.北京:机械工业出版社,2008.
[9] Ismeli Alfonso,Cuauhtemoc Maldonado,Gonalo Gonzalez,et al.Effect of Mg content and solution treatment on the microstructure of Al-Si-Cu-Mg alloys[J].Journal of Materials Science,2006,41:1945-1952.
[10] 曾苏民.影响铝合金固溶保温时间的多因素相关规律[J].中国有色金属学报,1999,9(1):83-90.
Zeng Sumin.Disciplines of multiple factors affecting solution treating of aluminum alloy[J].The Chinese Journal of Nonferrous Metals,1999,9(1):83-90.

[1]	杨杰, 汪西, 周杰, 武建祥, 屈志远, 代合平, 彭海军. 转向节锻件枝丫结构淬火裂纹形成机理[J]. 金属热处理, 2022, 47(4): 263-267.
[2]	董瑞, 陈林, 岑耀东, 包喜荣. 不同热处理条件下贝氏体钢的微观组织和疲劳裂纹扩展[J]. 金属热处理, 2022, 47(2): 153-158.
[3]	王春华, 王峰, 王凤良, 房洪杰, 杨丽娟. 多级固溶对7136-0.35La铝合金组织与性能的影响[J]. 金属热处理, 2021, 46(9): 124-128.
[4]	周建波, 张晶, 张蕾涛, 李海涛, 樊帅奇, 徐金富. 激光工艺参数对Ni60/WC涂层裂纹率及组织的影响[J]. 金属热处理, 2021, 46(9): 252-257.
[5]	聂小龙, 高加强, 孟开仁, 王军艺, 刘新宽. 60Si2Mn弹簧钢的断裂失效分析[J]. 金属热处理, 2021, 46(8): 246-249.
[6]	许鸿翔, 王红伟, 张衡, 汪军, 赵少甫. 20Cr2Ni4钢齿轮渗碳淬火及装配后开裂原因分析[J]. 金属热处理, 2021, 46(8): 250-253.
[7]	杨庆旭, 王学, 马君鹏, 杨超. 超超临界锅炉水冷壁T23/12Cr1MoV异种钢焊接接头焊后热处理裂纹分析[J]. 金属热处理, 2021, 46(7): 218-222.
[8]	宋全, 淡婷, 李晓光, 高明森, 曹辉辉. W6Mo5Cr4V2Al高速钢麻花钻断裂原因分析[J]. 金属热处理, 2021, 46(7): 229-232.
[9]	吕晶, 杨其全, 张倩, 胡杰, 许鑫. 铸钢轮装制动盘螺栓孔裂纹产生原因分析[J]. 金属热处理, 2021, 46(7): 238-241.
[10]	吉国强, 葛贵明, 于丽娟, 钟继志. 50CrV4钢垫圈开裂原因分析[J]. 金属热处理, 2021, 46(7): 254-257.
[11]	肖大恒, 张雅静, 何航, 脱臣德, 袁睿, 武会宾. 100 mm厚S420高强钢的热处理工艺及焊接性能[J]. 金属热处理, 2021, 46(6): 107-110.
[12]	赵平. 超临界循环流化床锅炉高温过热器管开裂原因分析[J]. 金属热处理, 2021, 46(6): 225-230.
[13]	焦丽, 商海昆, 何剑丰, 赵英军, 张伟民, 李卫民, 周兰梅. 柴油机用42CrMo钢高强度螺栓断裂失效分析[J]. 金属热处理, 2021, 46(6): 245-249.
[14]	米佩, 孙永鹏, 张勇. 矿用齿轨感应淬火裂纹产生原因及改进方法[J]. 金属热处理, 2021, 46(6): 250-252.
[15]	张蕾涛, 李海涛, 贾润楠, 王喆, 樊帅奇, 王雪松, 戴娇燕, 徐金富. 激光重熔Ni60/50%WC复合涂层的制备及性能[J]. 金属热处理, 2021, 46(5): 229-234.

ZL111铝合金液压制动主缸的开裂分析

Cracking analysis of ZL111 aluminum alloy hydraulic brake master cylinder

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价