摘要
研究了1420合金在不同热处理状态的拉伸性能和拉伸断口，并考察了合金的显微组织，分析了断裂机制．结果表明，合金在各种热处理状态呈稳定的穿晶韧性断裂，原因是δ粒子细小，晶内强度低，而且晶界没有材出平密相和无析出带，品界强度没有降低．
The tensile properties and the fracture surface of 1420 alloy in different aging states,are studied along with its ndcrostructure. And the fracture machanism is then presented. Severalconclusions are: 1420 alloy behaves stable transgranular fracture for its smaller δ' phase and noequilibrium in grain boundary which cause lower strength within grains.
出处
《材料科学与工艺》
EI
CAS
CSCD
1998年第4期68-71,共4页
Materials Science and Technology
关键词
1420合金
拉伸性能
断口
1420 alloy
tensile properties
fracture surface
