压力容器
壓力容器
압력용기
2014年
10期
15-21
,共7页
小冲杆试验%低温%韧脆转变温度%U型直线槽%各向异性
小遲桿試驗%低溫%韌脆轉變溫度%U型直線槽%各嚮異性
소충간시험%저온%인취전변온도%U형직선조%각향이성
small punch test ( SPT)%low temperature%ductile-brittle transition temperature%U-notch grooves specimens%anisotropy
利用开U型缺口小冲杆试样对各向异性材料的轴向、周向和径向三个方向进行了不同温度试验研究，通过小冲杆能量随温度的变化，确定出小冲杆试验的转变温度TSP。结果表明，开U型直线槽小冲杆试验可以表征各向异性材料不同方向的韧脆转变温度及上平台冲击功之间的区别。结合常规小冲杆试验（不开缺口），得到开U型缺口的小冲杆试验能够更有效地应用于评价各向异性材料的力学性能。
利用開U型缺口小遲桿試樣對各嚮異性材料的軸嚮、週嚮和徑嚮三箇方嚮進行瞭不同溫度試驗研究，通過小遲桿能量隨溫度的變化，確定齣小遲桿試驗的轉變溫度TSP。結果錶明，開U型直線槽小遲桿試驗可以錶徵各嚮異性材料不同方嚮的韌脆轉變溫度及上平檯遲擊功之間的區彆。結閤常規小遲桿試驗（不開缺口），得到開U型缺口的小遲桿試驗能夠更有效地應用于評價各嚮異性材料的力學性能。
이용개U형결구소충간시양대각향이성재료적축향、주향화경향삼개방향진행료불동온도시험연구，통과소충간능량수온도적변화，학정출소충간시험적전변온도TSP。결과표명，개U형직선조소충간시험가이표정각향이성재료불동방향적인취전변온도급상평태충격공지간적구별。결합상규소충간시험（불개결구），득도개U형결구적소충간시험능구경유효지응용우평개각향이성재료적역학성능。
This paper focused on the small punch test( SPT) at various temperatures,using specimens with a U-shaped notch.The standard specimens were fabricated from the anisotropy material along axial,cir-cumferential and radial directions, respectively, to study the mechanical properties.The ductile -brittle transition temperature TSP of the SPT can be determined by the small punch energy variation with tempera-ture.The test results indicated that SPT with notched specimens is competent to reveal the difference among the three directions in SPT transition temperature,as well as the difference in upper plateau frac-ture energy.It was therefore concluded that SPT using specimens with a U-shaped notch,is useful and effective to evaluate the mechanical properties of anisotropic material,combined with common SPT( with-out notched specimens) .
