Experiments were carried out on carbon steel wires with diameter 8 mm which are particularly used in prestressed concrete composites. Thermomechanically heat treatment was also carried out on this wire in order to relieve the residual stresses accumulated after the cold work. The heat treatment ...
What is the normal practice to stress-relieve U-bend 2205 duplex stainless steel (SS) tubes? I am aware that 2205 is susceptible to embriltlement at 800 deg F (426 deg C), and a low-temperature stress relief treatment should not be performed. I have a treatment procedure calling for a...
Stress relieving is accompanied by the restoration of several physical properties in the deformed metal, including electrical resistivity and density; the process exerts a weaker effect on mechanical properties. Approximately up to 70 percent of the decrease in resistivity and up to 50 percent of the...
4.temper-stressed steel(为)去除应力(而)回火(的)钢 5.The purpose of annealing the metal is to relieve the stress.给金属退火是为了减少一些应力。 6.Microstructure and Residual Stress of Cu Films Annealed at Different Temperatures退火温度对Cu膜微结构与应力的影响 7.The Numerical Simulation of Stress...
(σ–T), the specimen is loaded first and the stress is kept constant at normal temperature. This takes quite a short time. Then, the specimen is heated until failure and the total time needed is 1–2 h. Within the process of the latter path, there is no time to achieve a uniform ...
to relieve the stress. A cable C may be made comprising a single or stranded copper conductor 2 surrounded by rubber or neoprene insulating material 4 which is encased in a heat shield 6 of cotton, asbestos or p-t-f-e. Two opposite-hand layers 8, 10 of drawn stainless &c. steel ...
Quench heat treatment is a commonly used process of hardening steel. In this process, the components are heated to a higher temperature for a certain length of time until a homogeneous single-phase solid solution is attained and rapidly cooled in a quenching medium. The hardening is achieved by...
and other qualities. Dynamic tests are those in which the material is exposed to a combination of expected operating circumstances including impact (e.g., a shell against a steel tank), vibration, cyclic stress, fluctuating loads, and fatigue. Polarized light, X rays, ultrasonic waves, and mic...
US Patent References: 1373589 Process of seasoning steel articles 1921-04-05 Blood Foreign References: GB365033A 1932-01-07 GB365034A 1932-01-07 Primary Examiner: Rutledge, Dewayne L. Assistant Examiner: Stallard W. W. Claims: I claim 1. A method for stress relieving a workpiece by ...
The thermal stress relaxation of PSZ-Mo functionally gradient material(FGM)during the fabri-cation process is optimally designed. 对PSZ-Mo系梯度功能材料(functionallygradientmaterials简称FGM)在制备过程中的热应力缓和性能进行了优化设计,用有限元方法解析了PSZ-Mo系两层叠层材料(即非梯度功能材料)在制备过程...