Practicability of Liquid Phase Diffusion Welding by use of Amorphous Interlayers
非晶中间层液相扩散焊的实用性
基本信息
- 批准号:59850121
- 负责人:
- 金额:$ 5.63万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Developmental Scientific Research
- 财政年份:1984
- 资助国家:日本
- 起止时间:1984 至 1985
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Firstly, effects of the morphology and composition of nickel-base interlayers on transient liquid phase diffusion weldability of superalloy Inconel 713C have been investigated by microscopy, electron probe microanalysis and high temperature strength tests of the joints.Proper composition adjustment, powder refinement and homogenization of the interlayers were indicated to be both important for the improvement of the weldability. Especially in amorphous interlayers made by the rapid quenching liquid metal method, the composition homogeneity which contributes to easy homogenization of the joints was fairly improved without segregation of molybdenum and hafnium. Additionally, in case of using amorphous interlayers, the thickness of liquid layer formed at the joint interface during welding was revealed to become thinner compared with the case of using powdered interlayers, so that the isothermal solidification of the liquid phase could occur more rapidly. These phenomena were demonstrated … More to result in increasing the joint strength, and some of the jionts showed 100 percent jiont efficiency in stress-rupture tests.Secondly, the Liquid-phase diffusion weldability and brazability of commercial pure titanium and Ti-6A1-4V alloy has been investigated by microscopy, electron probe microanalysis and tensile tests at both room and high temperatures.In order to prevent from changing the fine base metal structures, the titanium and Ti-6A1-4V joints were made below <beta> transformation and <beta> transus temperatures respectively, by use of newly developed amorphous interlayers with low melting points, consisting of Ti, Zr, Cu and Ni.Both joints of titanium and Ti-6A1-4V made at 850゜C for 5 minutes and at 900゜C for 10 minutes respectively, were failed in base metal without changing of the base metal structures. This shows that in case of titanium and titanium alloys, enough joints to be comparable with base metals can be made by liquid phase diffusion welding with new Ti-Zr-Cu-Ni amorphous filler metals. Less
首先,通过金相显微镜、电子探针和接头高温强度试验,研究了镍基过渡层的形貌和成分对Inconel 713 C高温合金瞬时液相扩散焊接性的影响,指出适当的成分调整、粉末细化和过渡层均匀化是改善焊接性的重要措施。特别是采用快淬液态金属法制备的非晶中间层,其成分均匀性得到了很大改善,且没有钼和铪的偏析,有利于接头的均匀化。此外,在使用非晶中间层的情况下,在焊接过程中在接头界面处形成的液体层的厚度被揭示为变得比使用粉末中间层的情况下更薄,使得液相的等温凝固可以更迅速地发生。这些现象被证明 ...更多信息 其次,采用金相显微镜、电子探针和室温及高温拉伸试验等方法,研究了工业纯钛和Ti-6Al-4V合金的液相扩散焊接性和钎焊性,为避免改变母材的优良组织结构,采用扩散焊工艺制备了Ti-6Al-4V合金的扩散焊接头,并对扩散焊接头的钎焊性能进行了研究。钛和Ti-6A 1 -4V的接头分别在低于相变<beta>温度和<beta>低于相变温度下通过使用新开发的由Ti、Zr、Cu和Ni组成的具有低熔点的非晶中间层制备。钛和Ti-6A 1 -4V的接头分别在850 ℃下5 min和900 ℃下10 min制备,在不改变基底金属结构的情况下,在基底金属中失效。这表明,在钛和钛合金的情况下,用新型Ti-Zr-Cu-Ni非晶填充金属通过液相扩散焊接可以制造与基底金属相当的足够接头。少
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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ONZAWA Tadao其他文献
ONZAWA Tadao的其他文献
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{{ truncateString('ONZAWA Tadao', 18)}}的其他基金
Electrostatic manipulation of a micro-object by controlling applied voltage
通过控制施加电压对微型物体进行静电操纵
- 批准号:
15360133 - 财政年份:2003
- 资助金额:
$ 5.63万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Exact reversiblity in joining and separation
连接和分离的精确可逆性
- 批准号:
13450292 - 财政年份:2001
- 资助金额:
$ 5.63万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Joining system without heating and pressing
无需加热和加压的连接系统
- 批准号:
10555244 - 财政年份:1998
- 资助金额:
$ 5.63万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Exact reversibility in joining and separation
连接和分离的精确可逆性
- 批准号:
10450267 - 财政年份:1998
- 资助金额:
$ 5.63万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Adhesion force measurements in UHV chamber of surface analysis appararus
表面分析仪特高压室内粘附力测量
- 批准号:
07405033 - 财政年份:1995
- 资助金额:
$ 5.63万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Widening of the joined interface by the procedure without heating and pressing
通过不加热、不加压的工序扩大接合界面
- 批准号:
07305058 - 财政年份:1995
- 资助金额:
$ 5.63万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Measurement of Inter-materials forces by Atomic Force Microscopy (AFM) .
通过原子力显微镜 (AFM) 测量材料间的力。
- 批准号:
05452292 - 财政年份:1993
- 资助金额:
$ 5.63万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
Research on Ti-Al inter metallic compound matrix FRM
Ti-Al金属间化合物基体FRM的研究
- 批准号:
03452261 - 财政年份:1991
- 资助金额:
$ 5.63万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
LIQUID PHASE DIFFUSION JOINING OF TITANIUM AND TITANIUM ALLOY
钛及钛合金的液相扩散连接
- 批准号:
62460197 - 财政年份:1987
- 资助金额:
$ 5.63万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)