stress effects/ strain-rate sensitivitynanoindentation methodsTwo different techniques for measuring the strain-rate sensitivity (SRS) exponent, m, of the power law relating the equivalent flow stress and the equivalent plastic strain rate are analyzed, paying special attention to the errors induced by...
The Mechanism of Critical Strain of Serrated Yielding in Strain Rate Domaindoi:10.1088/0256-307X/33/2/026201The mechanism of the critical strain of serrated yielding is studied via tension tests at various strain rates. Before the critical strain, it is deduced that dislocations are not pinned ...
In order to determine the critical conditions orcritical strainof initial dynamic recrystallization, the AZ31 magnesium alloy was deformed by isothermal compression in the range of deformation temperature 473～623 K at strain rate 0. 为确定AZ31镁合金初始动态再结晶的临界条件或临界应变,通过在变形温度范围...
The condition for occurrence of weld solidification cracking is analyzed in relation to strain rate by direct observation technique MISO for plain carbon steels, stainless steels and an Inconel alloy. All the materials used show a dependence of critical strain required for crack initiation on strain ...
The good agreement between these results indicated that the current model can well capture the critical strain in a wide range of strain rates and temperatures. 展开 关键词: dynamic strain aging strain rate portevin-Le chatelier effect thermal activation ...
美 英 un.临界应变 网络临界应变量 英汉 网络释义 un. 1. 临界应变 例句 释义: 全部,临界应变,临界应变量
Water coning is a term used to describe the upward movement of water into the perforations of a producing well. This phenomenon can also be described as a steady and usually sharp displacement of some or all the oil production by the bottom water when the critical withdrawal rate from the we...
repetition rate was 4 Hz. After deposition, these samples were annealed at 700 °C for 5 min and then cooled down to 200 °C with a cooling rate at 5 °C·min−1in an oxygen pressure of 3 × 104 Pa. High-resolution RSM...
A critical strain,ɛexists in the formation of flow-induced crystallization precursor structure. Below ɛ, no shish-kebab structure can be formed even when the applied strain rate,ɛ is higher than the critical strain rate,ɛ. ... JK Keum,Y Mao,Z Feng,... - Aps March Meeting 被引...
Indentation is the preferable method, since the tested volume of material is scaleable with respect to the microstructure. In this manner, strain-rate sensitivity of nanocrystalline (nc), ultra-fine crystalline (ufc), and microcrystalline (mc) specimens of the same material can be studied using ...