Hot Powder Vehicle Compaction of an Atomized Stainless Steel Powder
雾化不锈钢粉末的热粉末载体压实
基本信息
- 批准号:62550496
- 负责人:
- 金额:$ 1.15万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1987
- 资助国家:日本
- 起止时间:1987 至 1988
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Densification and microstructural development of stainless steel powder during hot powder vehicle compaction was investigated. The preheated powder preform, vacuum encapsuled in a borosilicate glass, was compacted in a steel die using preheatedalumina granules as a pressure transmitting medium. The condition for the full-densification was determined as a function of pressure and temperature. The increase in pressure was more effective than in temperature. Three microstructural features were odserved during the compacting process; Solutioning of dendritic structure, recrystallization and normal grain growth, which in turn was found to be mainly dependent of preheating temperature. It has been found that a submicron-sized microstructure is formed during the recrystallization stage. the densification mechanism of the present compaction process has been discussed on a concept of pressure sintering map.
研究了不锈钢粉末在热粉车压制过程中的致密化和组织演变。用预热的氧化铝颗粒作为传压介质,将预热的粉末预制件真空包裹在硼硅酸盐玻璃中,在钢模中压制。完全致密化的条件被确定为压力和温度的函数。压力的增加比温度的增加更有效。在压制过程中发现了三个显微组织特征:枝晶组织的溶解、再结晶和正常的晶粒长大,而这又主要取决于预热温度。研究发现,在再结晶阶段形成亚微米级的显微组织。用压力烧结图的概念讨论了现有压制工艺的致密化机理。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
宮島雅文、川崎亮、渡辺龍三: 日本金属学会誌.
Masafumi Miyajima、Ryo Kawasaki、Ryuzo Watanabe:日本金属学会杂志。
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- 影响因子:0
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WATANABE Ryuzo其他文献
WATANABE Ryuzo的其他文献
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{{ truncateString('WATANABE Ryuzo', 18)}}的其他基金
Powder Metallurgical Processing and Development of Functional Composites
粉末冶金加工及功能复合材料的开发
- 批准号:
11221203 - 财政年份:1999
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas (B)
Powder Metallurgical Fabrication of Artificial Tooth Root of Hydroxyapatite/Ti with Bio-mimetic Structure
粉末冶金仿生结构羟基磷灰石/钛人工牙根的制备
- 批准号:
10555239 - 财政年份:1998
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Optimization of fatigue property of ceramic coating for next-generation gas turbine
新一代燃气轮机陶瓷涂层疲劳性能优化
- 批准号:
09305048 - 财政年份:1997
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Fracture Toughness Control in Functionally Gradient Material
功能梯度材料的断裂韧性控制
- 批准号:
07045018 - 财政年份:1995
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for international Scientific Research
Development of Thermal Shock Testing System for Functionally Graded Materials
功能梯度材料热冲击测试系统的研制
- 批准号:
06555190 - 财政年份:1994
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
Consolidation of low-sinterability powders with applying medium isostatic pressure
通过施加中等等静压来固结低烧结性粉末
- 批准号:
06452331 - 财政年份:1994
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Fabrication of Multi-Functional Sintered Materials with Graded Compositional Distribution
具有梯度成分分布的多功能烧结材料的制造
- 批准号:
03453064 - 财政年份:1991
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
Fabrication of Multi-Functional Ceramic Composites by Slurry Stacking Method
浆料堆积法制备多功能陶瓷复合材料
- 批准号:
03555146 - 财政年份:1991
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
Fabrication of High Pressure Rocket Combustor by Powder Metallurgy
粉末冶金高压火箭燃烧室的制造
- 批准号:
01850151 - 财政年份:1989
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research