查询词典 cementite

According to the morphological characteristics of cementite lamellae, the deformed pearlite can be divided into three kinds: irregularly bent lamella (pearlite lamella originally inclined with large angles to the rolling plane and irregularly bent after deformation); coarse lamellae with shear-band (the rhomboidal blocks of weakly deformed lamella bounded by shear band) and fine lamella (heavily deformed lamella aligned parallel to the rolling direction with fine interlamellar spacing).

按渗碳体形态特点，变形珠光体组织可分为以下3种类型：(1)不规则弯曲片层型，即变形后的渗碳体与轧制面呈大角度偏离且不规则弯曲的珠光体。(2)带有剪切带的粗大片层型，即被渗碳体剪切带分开且变形轻微的珠光体。(3)精细片层型，即与轧制方向平行排列、片间距细小且渗碳体严重变形的珠光体。

The results show that grains at core are coarser and deformation bands are observed at surface,while microstructure both at core and at surface is composed of bainitic ferrite laths with high dislocation density and interlath cementite or residual austenite.Good uniforinity in h...

结合NQP钢连续冷却时的相变特点，分析其截面硬度波动在±1.5HRC内的原因在于其有较好的贝氏体淬透性，模块整个截面上都得到了均匀的贝氏体组织，贝氏体板条宽度和位错密度的差异使得其表层硬度稍高于心部。

One, use rangeNitrogen of the shallow-layer cementite that is used at bearing, chain, bearing pin, fastener, small-sized mechanical spare parts, carbon in all ooze, brightness quenchs.

一、应用范围用于轴承、链条、销轴、紧固件、小型机械零件的浅层渗碳、碳氮共渗、光亮淬火。

Pig iron, the matrix consisted of more than 95% pearlite and a little amount of cementite also, whereas the graphite was of larger type-A, and the tensile strength and the hardness were of 202~238MPa and 220~237HB, respectively; when the metallic charge was 23% V-Ti pig iron plus 77% N.I.

研究钒钛生铁和球铁生铁对Cr-Cu-Mo可淬硬铸铁凸轮轴显微组织和性能的影响，讨论了D型石墨的形成机理以及D型石墨灰铸铁凸轮轴具有较高强度和较高硬度的原因。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。