STRUCTURE AND MECHANICAL-PROPERTIES OF A THERMAL-SPRAYED NICKEL-20WT-PERCENT CHROMIUM-ALLOY

被引：6

作者：

MURAKAMI, K ^{[1
]}

OKAMOTO, T ^{[1
]}

MATSUMOTO, H ^{[1
]}

MIYAMOTO, Y ^{[1
]}

IRISAWA, T ^{[1
]}

机构：

[1] OSAKA SANGYO UNIV,DAITO,OSAKA 574,JAPAN

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1993年 / 160卷 / 02期

关键词：

D O I：

10.1016/0921-5093(93)90446-L

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Powder of a nickel-chromium alloy (about 20 wt.% chromium) was low pressure plasma sprayed onto substrates which were cooled to various extents. As the maximum temperature of the sprayed deposit was increased up to approximately 1148-1235 K during spraying, the strength of the deposit, measured on tensile test pieces machined from the deposit, increased owing to the combined effects of precipitation strengthening and enhancement of adhesion between the flattened particles composing the deposit. It is proposed that an adequate rise in temperature of the deposit during spraying improves its strength more effectively than annealing a deposit held at low temperatures during spraying, as long as the heating temperature and the heating time of these two deposits are similar to each other.

引用

页码：181 / 187

页数：7

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