查询词典 precipitation hardening

Stainless steel grade grouping Precipitation hardening stainless Plug Valves steel.

二、不锈钢牌号分组沉淀硬化型不锈钢。

Compared with Cu-Ag alloy under the same test conditions, the coherent precipitation hardening is proved to be the major factors that improve the strength and hardness of the alloy.

然而，目前国内外所用的铜合金材料一直都存在着高强和高导之间的矛盾，如何在保持高的导电性的前提下，有效地提高其力学性能已经成为铜合金材料研究和发展的中心任务，因此寻找一种兼顾高强度与高导电

The effects of prime heat treatment parameters on mechanical properties of the precipitation hardening stainless steel 0Cr17Ni5Mo3 were studied by the orthogonal design of experiment.

用正交设计法研究固溶温度、固溶时间、调整处理温度和调整处理时间对0Cr17N i5Mo3沉淀硬化不锈钢力学性能的影响。

Technological property test ; precipitation hardening ; machining ; heat-treatment.

工艺性能试验；沉淀硬化；机械加工；热处理

The main advantage of precipitation hardening steels in general is that they can be supplied to a manufacturer in an condition of optimal machinability and then the only heat treatment required is an extended very low temperature soak.

沉淀硬化的主要优势在于钢材厂商在将钢材提供给刀具制作厂商的时候可以让H-1保持最好的打磨性，降低刀具制作厂商的加工难度，而刀具制作厂商在完成打磨之后需要做的唯一的热处理就是将H-1进行深冷浸泡以提高强度。

Precipitation hardening stainless steels may be martensitic, semi-austenitic or austenitic.

沉淀硬化不锈钢可马氏体，半奥氏体或奥氏体。

Though precipitation hardening ultra high strength stainless steels have been developed for decades, the development of space science, modern defenice and some important civil applications stimulates new grades to appear successively.

沉淀硬化型超高强度不锈钢，虽有几十年历史，但随着尖端科学，现代国防工业和重大国民经济建设等迅速发展，促进了本类型新材料的不断出现。

While many other alloys are susceptible to precipitation hardening which changes electrical properties unpredictably, the resistivity of EVANOHM alloy R always increases during heat treatment.

在别的很多合金因容易被沉淀硬化而使得电理性能变得不可预测时， EVANOHM alloy R 在热处理中电阻总是在上升。

For the purpose to study its critical issues for fusion application, many kinds of V-W-Cr-Ti-Al alloys were developed, and were used for studies of recovery and recrystallization, aging behavior and precipitation hardening, high-temperature mechanical performance, effects of H on mechanical properties and hydrogen enbrittlement, H release behavior and oxidation behavior at elevated temperature. Mechanizms for the behaviors were analyzed and the relationship between chemical composition, microstructure and properties was established.

为研究其聚变应用关键问题，本项目研制了多种V-W-Cr-Ti-Al合金，利用它们完成了合金的回复和再结晶、时效行为和析出强化、高温力学性能、氢对合金力学性能的影响及氢脆、氢释放行为、高温氧化行为等研究，分析了合金的行为机理，建立起了合金性能与化学成份、微观组织结构的关系，是以后研制更高性能合金的基础。

The results show that the effect of Li is to increase the rate of hardening, however, the addition of lithium does not progressively change age hardening and precipitation process of Al--Cu--Mg--Ag alloys with low Cu/Mg ratio, and significant age hardening response only occurs with the addition of 2.0\%Li.

结果表明，在Al--4.0Mg--1.5Cu--0.4Ag合金中添加锂，可以加速合金的时效进程，但其时效硬化效果并不能简单地随着含锂量的增加而逐步加强，只有当锂含量达到2.0\%时，才表现出显著的时效硬化与强化效果。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。