CRYOGENIC MATERIAL PROPERTIES OF STAINLESS-STEEL TUBE-TO-FLANGE WELDS

被引：1
|
作者：
SIEWERT, TA
MCCOWAN, CN
VIGLIOTTI, DP
机构：
[1] Fracture and Deformation Division, NIST, Boulder
来源：
CRYOGENICS | 1990年 / 30卷 / 04期
关键词：
materials characterization; mechanical properties; steel;
D O I：
10.1016/0011-2275(90)90316-5
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The mechanical properties of stainless steel tube-to-flange welds for a cryogenic piping application were measured. A planar specimen was developed to duplicate the constraint, loading and heat-sink properties of the circular joint, while reducing preparation time and cost. Specimens were evaluated containing welds between the tube material (21 Cr-6Ni-9Mn) and the three stainless steels being considered for the flange materials: type 304L, type 316L and 21 Cr-6Ni-9Mn. The mechanical property tests consisted of three phases: simple tensile testing to failure, tensile testing of notched specimens (where the notch simulated fabrication flaws) and fatigue testing of notched specimens for the 4 × 104 cycle design life of the structure. The type 316L stainless steel flange produced welds with the best combination of strength and ductility at 295 and 4 K in all three phases of testing. © 1990.
引用
收藏
页码：356 / 364
页数：9
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