the method also can be used on measuring materials 、welding seams and heat influence zones when manufacturing steam generator. Keywords Nuclear power plant equipment; material; fracture toughness; fatigue strength; steam generator 0 引言 核电设备的蒸发器的主体材料 SA508—3 钢和其它锅炉及压力容器材料...
[4]American Society of Testing and Material. Standard test method for measurement of fracture toughness: ASTM. E1820-15[S].Philadelphia: ASTM, 2017. [5]Iternational Organization for Standardization. Metallic materials—Unified method of test for the determination of quasistatic fracture toughness: IS...
High strength: SA-508 Gr.3 Cl.2 steel has high tensile strength and yield strength, which can meet the requirements of high pressure, high temperature and other harsh working environment. Good heat resistance: the steel can still maintain stable mechanical properties at high temperatures, not eas...
During operation these pressure vessels are subjected to continuous supply of pressurized hot water at 600 K and hence are susceptible to hydrogen embrittlement. In past, research has been conducted on the effect of hydrogen embrittlement on long fatigue crack propagation in this material but, the ...
Material structure before and after simulated heat treatment 从图1 可以看 出,试样在模拟焊后热处理前 后 的组织没有明显变化 ,都是回火索氏体 ,所 以引 起性能变化 的原 因与组织无关 。 根据上述试验结果 ,试样经过模拟焊后热处 理后,强度下降,冲击韧性降低 。导致这一结果的 ...
Abstract The effect of microstructure on the impact toughness and the temper embrittlement of a SA508Gr.4N steel was investigated. Martensitic and bainitic structures formed in this material were examined via scanning electron microscopy, electron backscatter diffraction, transmission electron microscopy, an...
H Ming,J Wang,EH Han - Asian Forum on Material Aging Issues in Nuclear System 被引量: 0发表: 2017年 Thermal Aging of Dissimilar-Metal Weld Joints for Reactor Pressurized Vessels at Elevated Temperature The dissimilar-metal welds composed of SA 508 C1.3 low alloy steel and AISI316L stainless...
The stress is usually distributed on or near the surface of the material. We present the measured residual stress for machining on SA 508 and austenitic stainless steels such as TP304 and F316. The residual stress can be tensile or compressive depending on the machining method. The depth and...
Here, the evolution of local material properties and residual stress was investigated for each of these zones during the manufacture of a three-pass groove weld in SA508 steel. Residual stress distributions were measured by neutron diffraction for a sample in which only one weld bead had been ...
ing Material s and Technology ,198 7 ,109 :15 7 — 16 3 . Yurioka N ,H orii Y . Recent d evelopments in repair welding technologies in Japan 【J ] . Science and Technology of Welding and Joining,2006 (11) :255 —264.