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高温大气和N2中Inconel690/1Cr13不锈钢的微动磨损特性
发布人：上海艾荔艾金属材料有限公司www.shailiai.com
更新时间：2015-08-21
在试验温度为20~25 ℃(air)、300 ℃(air)、300 ℃(N2)，法向载荷为(Fn)50和100 N，位移幅值为60~200 μm的条件下，采用PLINT高温微动磨损试验机研究核电蒸汽发生器传热管材Inconel690与1Cr13不锈钢圆柱配对副在滑移区的微动磨损特性。
高温大气和N2中Inconel690/1Cr13不锈钢的微动磨损特性Fretting wear behavior of Inconel690 /1Cr13 stainless steel
in high-temperature air and nitrogen
在试验温度为20~25 ℃(air)、300 ℃(air)、300
℃(N2)，法向载荷为(Fn)50和100 N，位移幅值为60~200
μm的条件下，采用PLINT高温微动磨损试验机研究核电蒸汽发生器传热管材Inconel690与1Cr13不锈钢圆柱配对副在滑移区的微动磨损特性。结果表明：当法向载荷一定时，随位移幅值增加，在高温大气中，微动摩擦因数逐渐升高；而高温氮气中，摩擦因数降低。当载荷和位移相同时，Inconel690在高温大气中磨损较轻，在高温氮气中损伤较严重。在高温大气和高温氮气中磨痕表面均出现不同程度摩擦氧化，主要生成Fe、Ni、Cr等合金元素的氧化物。Inconel690的磨损机制主要表现为磨粒磨损、摩擦氧化和剥层磨损的共同作用。
The fretting wear behavior of the steam generator tubes
material Inconel690 of nuclear power was investigated against 1Cr13 stainless
steel by PLINT high temperature fretting tester in the slip regime under the
conditions of the temperatures of 20-25 ℃(air), 300 ℃(air) and 300
℃(N2), the normal loads of 50 and 100 N, and the displacement
amplitudes from 60 μm to 200 μm. The results show that the fretting friction
coefficient gradually increases as the increase of displacement amplitude under
the same normal load in the high-temperature air, however, the friction
coefficient decreases in the high-temperature nitrogen. The damage degree of
Inconel690 is slight in the high-temperature air, but more serious in the
high-temperature nitrogen at the same load and displacement. In the
high-temperature air and nitrogen atmosphere, the wear surface occurs different
degrees of friction oxidation which generates mainly oxidation of Fe, Ni, Cr and
so on. The abrasive wear, friction oxidation and delamination are main wear
mechanisms of Inconel690.
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