首页 > 论文 > 中国激光 > 44卷 > 2期(pp:202007--1)

选区激光熔化Hastelloy-X合金组织演变及拉伸性能

Microstructural Evolution and Tensile Property of Hastelloy-X Alloys Produced by Selective Laser Melting

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

采用选区激光熔化技术加工哈氏合金试样并进行后处理,分别分析了沉积态、热处理态、热处理+热等静压态试样的宏观/微观组织特征,并测试了室温/高温拉伸性能。结果表明,沉积态试样横向/纵向均出现微裂纹,但未出现析出物。热处理后,横向组织为等轴晶,纵向组织为交错分布的细柱状晶和粗柱状晶,这些晶粒内部存在两种形态差异显著的析出物。热等静压处理后,晶粒显著长大,析出物分布均匀化,试样的室温拉伸性能达到锻件标准;相比于纵向拉伸性能,横向拉伸性能具有高强度低塑性的特征。

Abstract

Hastelloy-X specimens are processed and post-processed by the selective laser melting technique, the macro-/micro-structural characteristics of as-deposited, heat-treated and heat-plus-heat-isostatic-pressure-treated specimens are analyzed, and the tensile property at room/high temperature is tested, respectively. The results indicate that the micro-cracks appear at both horizontal and vertical directions of as-deposited specimens, but no precipitates occur. After heat treatments, the transverse microstructures become equiaxed grains, while the longitudinal microstructures are interleaved fine or coarse columnar grains, and within these grains, there exist two kinds of precipitates with quite different morphologies. After the hot-isostatic-pressure treatment, the grains grow up significantly, the distribution of the precipitates are homogenously distributed, and the tensile property at room temperature reaches the forging standard. The transverse tensile property is characterized by high strength and low plasticity compared to the longitudinal one.

广告组1 - 空间光调制器+DMD
补充资料

中图分类号:TG456.7

DOI:10.3788/cjl201744.0202007

所属栏目:激光制造

基金项目:上海市科委高新技术项目(15111108000)

收稿日期:2016-10-08

修改稿日期:2016-10-26

网络出版日期:--

作者单位    点击查看

侯慧鹏:上海中航商用航空发动机制造有限责任公司, 上海 201306
梁永朝:上海中航商用航空发动机制造有限责任公司, 上海 201306
何艳丽:上海中航商用航空发动机制造有限责任公司, 上海 201306
李雅莉:上海中航商用航空发动机制造有限责任公司, 上海 201306
雷力明:上海中航商用航空发动机制造有限责任公司, 上海 201306

联系人作者:侯慧鹏(13917176841@163.com)

备注:侯慧鹏(1989—),男,硕士,工程师,主要从事金属增材制造技术方面的研究。

【1】Editing Board of China Aeronautical Materials Handbook. China aeronautical materials handbook[M]. Beijing: Standards Press of China, 2002: 224.
中国航空材料手册编辑委员会. 中国航空材料手册[M]. 北京: 中国标准出版社, 2002: 224.

【2】Gu D D, Meiners W, Wissenbach K, et al. Laser additive manufacturing of metallic components: Materials, processes and mechanisms[J]. International Materials Reviews, 2012, 57(3): 133-164.

【3】Frazier W E. Metal additive manufacturing: A review[J]. Journal of Materials Engineering and Performance, 2014, 23(6): 1917-1928.

【4】Wang F, Wu X H, Clark D. On direct laser deposited Hastelloy-X: Dimension, surface finish, microstructure and mechanical properties[J]. Materials Science and Technology, 2011, 27(1): 344.

【5】Zhou Ruifa, Han Yafang, Li Shusuo. High-temperature structural materials[M]. Beijing: National Defense Industry Press, 2006.
周瑞发, 韩雅芳, 李树索. 高温结构材料[M]. 北京: 国防工业出版社, 2006.

【6】Tomus D, Tian Y, Rometsch P A, et al. Influence of post heat treatments on anisotropy of mechanical behavior and microstructure of Hastelloy-X parts produced by selective laser melting[J]. Materials Science & Engineering A, 2016, 667: 42-53.

【7】Zhao J C, Larsen M, Ravikumar V. Phase precipitation and time-temperature-transformation diagram of Hastelloy-X[J]. Materials Science and Engineering A, 2000, 293: 112-119.

【8】Chun C M, Bhargava G, Ramanarayanan T A. Metal dusting corrosion of nickel-based alloys[J]. Journal of the Electrochemical Society, 2007, 154(5): 231-240.

【9】Belan J. GCP and TCP phases presented in nickel-base superalloys[J]. Materials Today: Proceedings, 2016, 3(4): 936-941.

【10】Qin X Z, Guo J T, Yuan C, et al. Precipitation and thermal instability of M23C6 carbide in cast Ni-base superalloy K452[J]. Materials Letters, 2008, 62(2): 258-261.

【11】Bai G H, Li J S, Hu R, et al. Effect of temperature on tensile behavior of Ni-Cr-W based superalloy[J]. Materials Science and Engineering A, 2011, 528(4-5): 1974-1978.

引用该论文

Hou Huipeng,Liang Yongchao,He Yanli,Li Yali,Lei Liming. Microstructural Evolution and Tensile Property of Hastelloy-X Alloys Produced by Selective Laser Melting[J]. Chinese Journal of Lasers, 2017, 44(2): 0202007

侯慧鹏,梁永朝,何艳丽,李雅莉,雷力明. 选区激光熔化Hastelloy-X合金组织演变及拉伸性能[J]. 中国激光, 2017, 44(2): 0202007

被引情况

【1】潘爱琼,张 辉,王泽敏. 选区激光熔化镍基单晶高温合金的熔池显微组织. 激光与光电子学进展, 2017, 54(7): 71402--1

【2】潘爱琼,张 莉,王泽敏. 选区激光熔化SRR99高温合金的定向凝固组织及偏析. 激光与光电子学进展, 2017, 54(10): 101409--1

【3】刘家赫,朱海红,胡志恒,柯林达,曾晓雁. 激光选区熔化成形边缘堆高控制. 中国激光, 2017, 44(12): 1202007--1

【4】李俊峰,魏正英,卢秉恒. 钛及钛合金激光选区熔化技术的研究进展. 激光与光电子学进展, 2018, 55(1): 11403--1

【5】孟云龙,杨胶溪,张健全,王树志,陈虹,王喜兵,靳延鹏,张光睿. 激光熔凝对AerMet100钢显微组织及性能的影响. 激光与光电子学进展, 2018, 55(2): 21414--1

【6】侯伟,陈静,储松林,王修专,杨志逸,张毓祺,滕伟斌. 选区激光熔化成形AlSi10Mg组织与拉伸性能的各向异性研究. 中国激光, 2018, 45(7): 702003--1

【7】魏菁,李雅莉,何艳丽,侯慧鹏,雷力明. Hastelloy-X粉末成分对激光选区熔化成形各向成形性能的影响. 中国激光, 2018, 45(12): 1202011--1

【8】姚燕生,汪俊,陈庆波,丁晨,唐建平,葛张森. 激光增材制造产品缺陷及其处理技术研究现状. 激光与光电子学进展, 2019, 56(10): 100004--1

【9】郑寅岚,何艳丽,陈晓晖,雷力明. 选区激光熔化成形GH3536合金的高温拉伸性能及断裂行为分析. 中国激光, 2020, 47(8): 802008--1

【10】薛珈琪,陈晓晖,雷力明. 激光选区熔化GH3536合金组织对力学性能的影响. 激光与光电子学进展, 2019, 56(14): 141401--1

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF