The coiling of a steel strip in a Downcoiler is an integrated part of the hot-rolled steel production line. Failure to coiling results damage to finished rolled strip along with mill downtime due to ...cobble. Thus, coiling success in Downcoiler is a critical concern for production of hot rolled steel strip. A mathematical model has been developed to analyze coiling feasibility for new grade of high strength steel to be rolled for the first time in the mill and to thereby identify a safe operating window for the coiling-process parameters. This has significant benefit in reducing the risk of coiling failure during plant trial and thus product development cycle time. The model is based on the estimation of coiler tension for a new grade with reference to mill-based physical data of coiling compactness as defined by a wrapper angle from known grades, coiled in the mill. This is followed by computation and comparison of coiling torque vis-à-vis the capacity of the Downcoiler allows a decision to be taken about the coiling feasibility of the new grade. It is believed that it is for the first time that a coiling feasibility algorithm has been developed and discussed. The model has been widely used within Tata Steel to carry out plant trails for the development of new grade as well as rolling of new section in existing grades at its Hot Strip Mill in Indian plant at Kalinganagar.
The ductility of a retained austenite (RA)‐bearing steel is conventionally correlated with the gradual transformation of RA into martensite during straining, i.e., transformation‐induced plasticity ...(TRIP) mechanism. Nevertheless, current experiments and mathematical calculations illustrate that most of the RA transformed into martensite at quite an early stage of tensile straining. The result shows that only 4% of leftover RA exists after the initial tensile loading. It looks like enough RA is not available to operate TRIP to obtain successive ductility in the steel. Inexplicably, current work exhibits the maximum uniform tensile elongation after the major martensite transformation, which contradicts the conventional TRIP‐driven ductility theory. Thus, only 4% RA could be one of the prime factors that operate unfailingly to impart ductility in the steel. This work has created an understanding of the possible factors responsible for the observed ductility in the current steel while TRIP is not operating.
The tunability of Magnetic Tunnel Junction(MTJ) stack features based on the STT-MRAM may suit a wide range of product standards for microcontrollers and also the. Artificial intelligence inferencing ...devices, as well as SRAM-type applications such as frame buffer memory. However, each application faces unique hurdles in terms of reliability. STT-MRAM can be utilized to store code and data instead of external flash memory. STT-MRAM has a low cost and a small footprint. The SRAM cell is best when it comes to power consumption and also it uses less power than the traditional 6T SRAM cell. MRAM stands for magnetoresistive random-access memory, which stores the data as stable magnetic states of magnetoresistive devices and reads data by measuring the devices' resistance to determine their magnetic states and the write ability of 6T SRAM is increased approximately by 34 percent as compared to the standard 6T SRAM using transient analysis and simulation and lastly, the read, write, leakage power and latency are calculated
