精锻机锻造高碳铬轴承钢时存在网状碳化物不易破碎、锻件合格率低的问题。
While forging the high-carbon chromium bearing steel by the finish forge press, there still remains the issues that the carbide network can not be crushed with the low qualification rate.
扫描电镜观察表明,加入铝,可抑制锻后空冷条件下先共析网状碳化物的析出;
The microstructure analysis by SEM showed that the precipitation of netlike proeutectoid carbide has been inhibited during air cooling after forging due to Al addition to the UHCs.
结果表明,采用该工艺可获得高密度、高碳含量、具有马氏体、贝氏体和网状碳化物组织的粉末冶金气门座。
The results show that P/M valve seats using this technology has high density and high carbon content , and their microstructure are martensite , bainite and network carbide.
结果表明,辊身心部较高的内应力和在带状碳化物中存在严重的网状碳化物是造成大型支承辊置裂的主要原因。
The results showed that the higher internal stress and serious carbide network in the banded carbide in the inner roll body were the main causes of heavy back-up roll stationary cracking.
当硼含量大于0 . 0 10 %时,铸态组织中出现了明显的网状或断网状碳化物,冲击韧性下降幅度较大。
When boron content surpasses 0.010 %, there is some clear continuous carbide network or discontinuous carbide network in the microstructure, as a result, the impact toughness declines greatly.
结果表明,82B钢盘条脆断的主要原因是夹杂物级别超标、组织中出现网状碳化物、索氏体含量偏低以及盘条表面缺陷等。
The results show that 82b wire rod brittle fracture is mainly caused by excessive inclusion, reticulate carbide, lower sorbite in the microstructure, and surface defect of wire rod.
认为磷共晶加剧了碳化物的网状分布,降低了冲击韧性及耐磨性。
Eutectic phases of phosphorus aggravate the netting of carbides and result in the decreases to compact toughness and wear resistance.
硬镍合金铸铁是一种良好的抗磨材料,但由于其碳化物呈网状和组织粗大,使其韧性低和性能不够稳定。
Hard nickel cast iron is a kind of good wear resistant material, but its carbide formed as reticulation and microstructure was coarse, resulting in low toughness and unstable properties.
结果表明,稀土元素能破碎高铬铸铁中的碳化物,使碳化物由网状、长条状向岛状、块状过渡。
The experimental results show that the carbides in high Cr cast iron can be refined and changed from net and long shapes into island and block ones.
与不加稀土时相比,焊缝中沿晶界析出碳化物的尺寸减小、数量减少、析出形态由网状析出变为不连续的颗粒状,抗晶间腐蚀能力得到提高。
Intergranular corrosion resistance was increased owing to the lessening of carbide particles formed at austenite grain boundaries and morphology changing from reticular to granular.
结果表明,碳化物分布均匀性提高,碳化物网状级别及碳化物带状级别降低,奥氏体晶粒尺寸减小。
The experimental results show that the uniformity of spherical carbide can be increased, the grade of network carbide and banded carbide can be decreased, the austenite grain can be refined.
WC原始颗粒以各种复式碳化物的形式析出,分别形成枝状或鱼骨状共晶碳化物、网状二次碳化物及大块状碳化物。
Multiple carbides are precipitated from WC particles, which form many different shapes such as dendrite or fishbone eutectic carbide, reticulation secondary carbide and conglomeration carbide.
WC原始颗粒以各种复式碳化物的形式析出,分别形成枝状或鱼骨状共晶碳化物、网状二次碳化物及大块状碳化物。
Multiple carbides are precipitated from WC particles, which form many different shapes such as dendrite or fishbone eutectic carbide, reticulation secondary carbide and conglomeration carbide.
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