In this study, the hot deformation processing map of AISI 304 austenitic stainless steel in two initial grain sizes of 15 and 40 μm was investigated. For this purpose, cylindrical samples were used in the hot compression test at the temperature range of 950-1100 °C and the strain rate of 0.005-0.5% s-1. At first, the relationship between the peak stress and Zener-Hollomon parameter w...

Abstract Hot forming processes of complex parts with small cavities demand high-performance tools made hardened steels. Their surface can be tribologically modified in order to control the material flow for improving mold filling functional elements. Surface structuring here offers great potential adjusting frictional properties and thus controlling processes. In this study, high-feed milling (...

Titanium alloys exhibit mechanical and physical properties that fit structural applications demanding light-weight, corrosion resistance and biocompatibility. Ceramic reinforcements can further improve some of these mechanical properties, such as wear resistance, specific stiffness and specific strength. In comparison to continuous reinforced titanium alloys, the particle reinforced alloys (PRT...

The hot deformation of TA15 titanium alloy was studied by the compression test on Gleeble-3800 thermal simulation equipment. true stress-strain curves at temperature 1123-1223K and strain rate 0.001-1s -1 were obtained.. results show that flow stress increases with decreasing temperature, as increases. And process is accompanied work hardening dynamic recovery recrystallization. Based alloy, Ar...

In this paper, an uncertain state filling method is proposed, which can not only effectively reduce the scan shifting power consumption, but also test time simultaneously for test. This based on threshold algorithm of filling, both weighted transitions metric (WTM) and improve compression efficiency vectors. Experiments with ISCAS’89 benchmark circuits show that proposed make a good tradeoff be...

due to the great variety of applications of magnesium alloys with superior mechanical properties, recent studies have been focused on the hot deformation behavior and microstructure of magnesium alloy castings. although there have been several recent investigations on the microstructure of wrought magnesium alloys after hot deformation, a limited number of studies have been conducted with regar...

In this study, a denoising method of smoothing spline is proposed to reconstruct parent β grain titanium alloys as supplement the past literatures. The mean orientation sample with bimodal microstructure can be well reconstructed similar size and negligible misorientation (<1°) compared traditional reconstruction result. second test case deals globularized α grains after multi-axial hot compres...

compressibility characteristics of fine-grained soils are often the most important parameters for settlement evaluation of the founded layers. the compression index which is the slope of virgin curve is usually for determination of settlement potential of fine grained soils. in this research, the effects of different physical and index properties of soil samples were investigated on compression...