S.H. Song
,
null
金属学报(英文版)
Embrittlement of a 2.25Cr1Mo steel stemming from neutron irradiation at 270oC is studied by virtue of small punch testing in conjunction with scanning electron microscopy. The ductile-brittle transition temperature determined by the small punch test is much lower than that determined by the standard Charpy test. There is some irradiation-induced embrittlement effect after the steel is irradiated for 46 days with a neutron dose rate of 1.05?0-8 dpa/s.
关键词:
Irradiation
,
脆性
,
偏聚
,
低合金钢
,
压力容器
王百亚
,
张阳
,
王斌
宇航材料工艺
研制了一种环氧/芳香胺体系,采用DSC、固化反应动力学分析等方法对树脂体系进行了表征,并对其浇注体、复合材料NOL环以及φ150 mm压力容器性能进行了研究.结果表明,该树脂体系具有优良的浇注体力学及热性能,其拉伸强度为101 MPa,断裂伸长率达4.1％,弯曲强度为177 MPa,马丁耐热温度为142.2℃;与国产芳纶纤维的界面粘接性能良好,其NOL环层间剪切强度可以达到52.1 MPa,制备的复合材料φ150 mm压力容器PV/W值可达38.44 km.
关键词:
国产芳纶纤维
,
环氧树脂
,
NOL环
,
复合材料
,
压力容器
