Nanostructured coatings produced by plasma spraying

等离子喷涂制备的纳米结构涂层

基本信息

  • 批准号:
    11650741
  • 负责人:
  • 金额:
    $ 2.43万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    1999
  • 资助国家:
    日本
  • 起止时间:
    1999 至 2000
  • 项目状态:
    已结题

项目摘要

Atomized Fe-18mass%Cr-2mass%B alloy powder is low-pressure plasma sprayed onto steel substrates to produce high performance coatings having very fine boride precipitates. The substrate is either water cooled or not cooled. In the latter case, the substrate temperature is 1133K or 1293K depending on the condition of the substrate preheating. The structures and the mechanical properties of the coatings are examined. The results obtained are as follows.(1) Structures of the coatings :The coating formed on the water-cooled substrate consists of an amorphous phase and ferrite. The amorphous phase decomposes on heat treatment at 1073K to form non-equilibrium Fe_3B, and (Cr, Fe)_2B appears at higher heat treatment temperatures. In the case of spraying using preheated substrates, the constituents of the coatings are ferrite and (Cr, Fe)_2B of submicrometer size. As the substrate temperature during spraying becomes higher, the cohesion between flattened particles composing the coatings increases and the porosity of the coatings decreases.(2) Properties of the coatings :While the coating on the water-cooled substrate has a high hardness, its tensile strength is not so high and is about 0.67GPa. The harness decreases in the case of the coatings on preheated substrates due to the disappearance of the amorphous phase. The tensile strength of these coatings is as high as 1.4GPa, which is attributed to the dispersion of very fine boride precipitates and to the improved cohesion between the flattened particles. When this coating is heat treated at 1473K, the boride particles coarsen to a size of about 0.9μm and the coating softens. This coating, however, has a tensile strength of 0.9GPa with the elongation of about 10% and the best wear resistance in the present work.
将雾化的Fe-18mass%Cr-2mass%B合金粉末低压等离子喷涂到钢基体上以产生具有非常细的硼化物沉淀的高性能涂层。衬底可以是水冷的或不冷却的。在后一种情况下,根据基板预热的条件,基板温度为1133 K或1293 K。测试了涂层的结构和力学性能。所得结果如下。(1)涂层的结构:在水冷基体上形成的涂层由非晶相和铁素体组成。在1073 K热处理时,非晶相分解形成非平衡Fe_3B,在较高的热处理温度下,非晶相出现(Cr,Fe)_2B。在基体预热的情况下,涂层的成分为铁素体和亚微米级的(Cr,Fe)_2B。随着喷涂过程中基体温度的升高,组成涂层的扁平颗粒之间的凝聚力增加,涂层的孔隙率降低。(2)涂层的性能:虽然水冷基底上的涂层具有较高的硬度,但其拉伸强度不太高,约为0.67GPa。由于非晶相的消失,在预热基底上的涂层的情况下,硬度降低。这些涂层的抗拉强度高达1.4GPa,这归因于非常细的硼化物沉淀物的分散和扁平颗粒之间的结合力的改善。当涂层在1473 K热处理时,硼化物颗粒粗化至0.9μm左右,涂层软化。该涂层的抗拉强度为0.9GPa,延伸率约为10%,耐磨性最好。

项目成果

期刊论文数量(4)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
星山康洋: "プラズマ溶射による鉄/ボライド溶射皮膜の作製"(社)日本鋳造工学会 第137回全国講演大会講演概要集. 110 (2000)
Yasuhiro Hoshiyama:“通过等离子喷涂制备铁/硼化物喷涂涂层”日本铸造工程学会第 137 届全国会议摘要,110(2000)
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星山康洋: "プラズマ溶射による鉄/ボライド溶射皮膜の作製"(社)日本鋳造工学会第137回全国講演大会講演概要集. 110 (2000)
Yasuhiro Hoshiyama:“通过等离子喷涂制备铁/硼化物喷涂涂层”日本铸造工程学会第 137 届全国会议摘要 110 (2000)。
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星山康洋: "ボライド粒子を分散させた鉄基溶射皮膜の組織と耐摩耗性"(社)日本鋳造工学会第138回全国講演大会講演概要集. (掲載予定). (2001)
Yasuhiro Hoshiyama:“分散有硼化物颗粒的铁基热喷涂涂层的结构和耐磨性”日本铸造工程学会第138届全国会议摘要(即将出版)。
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    0
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星山康洋: "ボライド粒子を分散させた鉄基溶射皮膜の組織と磨耗特性"(社)日本鋳造工学会 第138回全国講演大会講演概要集. (掲載予定). (2001)
星山泰宏:《分散有硼化物颗粒的铁基热喷涂涂层的结构和磨损特性》日本铸造工程学会第138届全国会议摘要(即将出版)。
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MURAKAMI Kenji其他文献

大動脈解離モデルにおける偽腔内の血流と血管壁への負荷
主动脉夹层模型中假腔内的血流和血管壁上的负荷
  • DOI:
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    0
  • 作者:
    KANSAKU Daiki;KAWASE Nobuhiro;FUJIWARA Naoki;KHAN Faizan;KRISTY Arockiyasamy Periyanayaga;NISHA Kuruvankatil Dharmajan;YAMAKAWA Toshitaka;IKEDA Kazushi;HAYAKAWA Yasuhiro;MURAKAMI Kenji;SHIMOMURA Masaru;IKEDA Hiroya;坪子侑佑
  • 通讯作者:
    坪子侑佑
Output Power Characterization of Flexible Thermoelectric Power Generators
柔性热电发电机的输出功率特性
  • DOI:
    10.1587/transele.2021fus0003
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    0.5
  • 作者:
    KANSAKU Daiki;KAWASE Nobuhiro;FUJIWARA Naoki;KHAN Faizan;KRISTY Arockiyasamy Periyanayaga;NISHA Kuruvankatil Dharmajan;YAMAKAWA Toshitaka;IKEDA Kazushi;HAYAKAWA Yasuhiro;MURAKAMI Kenji;SHIMOMURA Masaru;IKEDA Hiroya
  • 通讯作者:
    IKEDA Hiroya

MURAKAMI Kenji的其他文献

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{{ truncateString('MURAKAMI Kenji', 18)}}的其他基金

New method of ileus tube under CT fluoroscopy
CT透视下肠梗阻管新方法
  • 批准号:
    26670567
  • 财政年份:
    2014
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Synthesis of new temperature-responsive separation membrane -Control of permeable molecular size by temperature-
新型温度响应型分离膜的合成-通过温度控制渗透分子大小-
  • 批准号:
    24560916
  • 财政年份:
    2012
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of thermal spray coatings with long-term corrosion protection and anti-biofouling properties for steel structures in the sea
开发具有长期腐蚀防护和抗生物污损性能的海洋钢结构热喷涂涂层
  • 批准号:
    22246111
  • 财政年份:
    2010
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Development of a new detection method of image primitives by several procedures in image space and parameter space
通过图像空间和参数空间中的多个过程开发一种新的图像基元检测方法
  • 批准号:
    22500156
  • 财政年份:
    2010
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of practical high efficiency and quasi solid-state dye-sensitized solar cell modules
实用高效准固态染料敏化太阳能电池组件的开发
  • 批准号:
    21560325
  • 财政年份:
    2009
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of novel adsorbent with adjustable pore entrance size and application to temperature-responsive separation system
新型可调孔径吸附剂的研制及其在温敏分离系统中的应用
  • 批准号:
    21656198
  • 财政年份:
    2009
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Agronomic research of ecological characteristics in low-oxalate spinach mutant
低草酸菠菜突变体生态特性农艺研究
  • 批准号:
    20580028
  • 财政年份:
    2008
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
A research on high speed, highly accurate extraction of image primitive, and re-composition of object shape
高速、高精度图像基元提取及物体形状重构研究
  • 批准号:
    18500133
  • 财政年份:
    2006
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of thermal spray coatings with corrosion protecting and antifouling properties
具有防腐防污性能的热喷涂涂层的开发
  • 批准号:
    17360426
  • 财政年份:
    2005
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Mechanism and Inheritance of Continuous Light-Tolerance in Cucurbita moschata
西葫芦连续耐光机制及遗传
  • 批准号:
    15580023
  • 财政年份:
    2003
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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多功能高熵碳化物和硼化物 (HECARBO) 陶瓷复合材料:成分空间、新颖合成和性能定制
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