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热处理对电沉积Ni-Fe合金箔组织和力学性能的影响
  • ISSN号:1005-0299
  • 期刊名称:《材料科学与工艺》
  • 时间:0
  • 分类:TG132.271[金属学及工艺—合金;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 作者机构:钢铁冶金新技术国家重点实验室北京科技大学,北京100083
  • 相关基金:国家自然科学基金资助项目(51234001).
中文摘要:

电沉积法制备Ni-Fe合金箔具有工艺简单,能耗低,产品规格不受限制等优点,但其塑性和弹性模量较低限制了其应用发展.为了改善电沉积Ni-Fe合金箔的力学性能并扩大其应用范围,本文通过高温热处理方法改善其力学性能,采用SEM,XRD,EBSD分析手段对电沉积Ni-Fe合金箔晶粒组织和结构进行了分析,通过高温热台显微镜进行原位在线观测晶粒组织的演变过程,并对热处理后的电沉积Ni-Fe合金箔进行力学性能分析.研究表明,热处理过程中电沉积Ni-Fe合金箔经历细晶组织阶段、混晶组织阶段和粗晶组织阶段,其中,在1 000~1 050℃容易发生晶粒异常长大.细晶组织阶段,电沉积Ni-Fe合金箔能够保证较高的强度,且塑性和弹性模量明显提高,综合性能较好;混晶组织阶段,强度和塑性较低,弹性模量有一定程度提高;粗晶组织阶段,强度很低,但塑性和弹性模量有较大程度提高.

英文摘要:

The electrodeposition is well known as a technological and economical method to produce large scale and high purity nanocrystalline Ni- Fe alloy foil in one step. However,the low plasticity and elastic modulus restrict its application. In order to improve the mechanical properties and expand the application range of the electrodeposited nanocrystalline Ni- Fe alloy foil,the mechanical properties were improved by heat treatment at high temperatures in this study. The microstructure and texture of the samples were analyzed with a combination of SEM,XRD and EBSD. The evolution of grain microstructure during annealing was in situ investigated using high temperature thermo-stage microscope and the mechanical properties were also studied in this paper. The results indicate that the evolution of grain microstructure of the foil underwent 3stages in the heat treatment process: fine grain microstructure,mixed grain microstructure and coarse grain microstructure. The abnormal grain growth appeared after annealed at 1 000 ~ 1 050 ℃. In the fine grain microstructure stage,the alloy foils obtained a relatively high strength and better comprehensive property. The plastic and modulus were improved significantly. The strength and plasticity of the alloy foils with mixed grain microstructure were low,but the elastic modulus was increased. The strength of the alloy foils with coarse grain microstructure was low,but the plasticity and elastic modulus were greatly improved.

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期刊信息
  • 《材料科学与工艺》
  • 北大核心期刊(2011版)
  • 主管单位:中华人民共和国工业和信息化部
  • 主办单位:哈尔滨工业大学 中国材料研究学会
  • 主编:苑世剑
  • 地址:哈尔滨市西大直街92号136信箱
  • 邮编:150001
  • 邮箱:cailiaokexue@hope.hit.edu.cn
  • 电话:0451-86418376 86403426
  • 国际标准刊号:ISSN:1005-0299
  • 国内统一刊号:ISSN:23-1345/TB
  • 邮发代号:14-106
  • 获奖情况:
  • 2000年获黑龙江省科技期刊一等奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:10528