In the duplex steels χ-phase is a good strengthener, manifesting pronounced hardening effect at elevated temperature.

在所研究的兩種復(fù)相不銹鋼中，都觀察到有由于x相析出所引起的沉淀硬化現(xiàn)象国产91九色视频。

This welding wire not only has the inherent properties of metal powder-cored wire, such as with better welding quality, without slag, highly efficiency and conveniently adjusting the alloying elements etc., but also has the advantage of low hardness in as-welded (less than HRC45), good machinability, high hardness in as-aged (more than HRC55) and better wear resistance with customary working procedure on making or repairing equipments such as rollers when reasonable designing the alloys content. The author adequately makes use of the high-tempering in the required stress relieving working procedure. During this working procedure, which causes the hardness of overlaying metal increased by the reason of austenite changes into tempered martensite and more chiefly what is the precipitation of a lot of carbide by secondary hardening simultaneously. This wire can solve the hard rolled problems of some solid wires with higher alloys while it can get over the conflict of existing overlaying materials what are always possesed high hardness with poor machinability or low hardness, good machinability with poor wear resistance. Further, it also can overcome the intenerating phenomena between welding beads and make the external hardness of overlaying metal uniform. Be sure it could be found important meaning in the overlaying of wear-resistant equipments, such as the precise roller.

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Along with the course of precipitations its morphology changed and the mechanical properties of AZ91HP were also changed and shown obvious precipitation hardening.

伴隨著β-Al12Mg17相的析出與形態(tài)轉(zhuǎn)變過(guò)程，AZ91HP性能也隨之變化91超薄丝袜脚交，顯示了明顯的時(shí)效硬化特征2005最新免费黄色网站。

An in-situ precipitation hardening effect was also found to be partially responsible for the cyclic hardening in Condition A at 400oC.

其中即時(shí)的析出強(qiáng)化效應(yīng)亦是造成Condition A於400oC下循環(huán)硬化的原因之一。

The influence of secondary carbides precipitation and transformation on hardening behavior of a 14Cr-1Mo-1.5V cast iron in sub-critical treatment was studied using optical microscope, transmission electron microscopy and X-ray diffraction.

為了揭示高鉻耐磨鑄鐵硬化的微觀機(jī)制国产精品视频三区，提高其使用性能男人的天堂在线播放，采用光學(xué)顯微鏡、透射電鏡和X射線衍射研究15Cr-1Mo-1.5V高鉻鑄鐵中二次碳化物的析出和轉(zhuǎn)變對(duì)其亞臨界處理硬化行為的影響欧美业余性爱。

artificial aging：人工時(shí)效

需要在稍高於室溫的條件下進(jìn)行者稱為人工時(shí)效(artificial aging),一般以T6表示其鍊度. 人工時(shí)效主要是要使析出硬化作用能在合理的期間內(nèi)完成,因?yàn)闀r(shí)效溫度愈高達(dá)到最大硬度的時(shí)間愈短,唯所獲得的硬度愈低,如圖4所示. 時(shí)效時(shí)間太長(zhǎng)時(shí),

precipitation hardening：析出硬化

precipitation 析出 | precipitation hardening 析出硬化 | press quenching 加壓硬化

precipitation hardening：析出硬化;沈澱硬化

precipitation effectiveness 降水有效度 | precipitation hardening 析出硬化;沈澱硬化 | precipitation interference 水氣靜電干擾

structural iron：結(jié)構(gòu)型鐵,結(jié)構(gòu)鋼

structural hardening 結(jié)構(gòu)淬火,析出硬化 | structural iron 結(jié)構(gòu)型鐵,結(jié)構(gòu)鋼 | structural isomer 結(jié)構(gòu)同分異構(gòu)體

silico ferrite：硅肥粒鐵

析出硬化 precipitation hardening | 硅肥粒鐵 silico ferrite | 硅肺病,石米沉著病 silicosis

Maraging Steel：馬氏體時(shí)效鋼

[簡(jiǎn)介]馬氏體時(shí)效鋼(maraging steel)以無(wú)碳(或 微碳)馬氏體為基體的,時(shí)效時(shí)能產(chǎn)生金屬間化合物沉淀硬化的超高強(qiáng)度鋼. 與傳統(tǒng)高強(qiáng)度鋼不同,它不用碳 而靠金屬間化合物的彌散析出來(lái)強(qiáng)化. 這使其具有一 些獨(dú)特的性能:高強(qiáng)韌性,低硬化指數(shù),

precipitation hardening stainless steel：沉淀硬化不銹鋼

沉淀硬化不銹鋼 (precipitation hardening stainless steel) 在不銹鋼化學(xué)成分的基礎(chǔ)上添加不同類型av男人天堂污污污www、數(shù)量的強(qiáng)化元素,通過(guò)沉淀硬化過(guò)程析出不同類型和數(shù)量的碳化物不卡黄色网、氮化物、碳氮化物和金屬間化合物,既提高鋼的強(qiáng)度又保持足夠的韌性的一類高強(qiáng)度不銹鋼,

precipitation hardening type magnet：沉淀硬化型磁鐵

precipitation hardening ==> 析出硬化 | precipitation hardening type magnet ==> 沉淀硬化型磁鐵 | precipitation heat ==> 沉淀熱