查询词典 carbides

The experimental regularity and the mechanism of coercitive force of metallic nickel powders and WC-Ni mixture powders used for WC-Ni cemented carbides production have been explored by means of the specific coercitive force H SC physical measure.

以金属镍作粘结剂的硬质合金不仅因以镍代钴可降低生产成本还因具有诸如抗高温氧化、耐腐蚀及在低碳含量下无磁性等特性具有广阔的应用前景。

The wear failure is mainly caused by the combined action of micro-cutting and fatigue desquamation, with fragmentation of carbides.

磨损失效形式为显微切削与疲劳剥落的复合，兼有碳化物碎裂。

There are also several companies in Russia for which tungsten business is not an essential activity. Here is a list of them:"Chelyabinsky electrometallurgical plant" at Ural (Ferro-tungsten and special steels),"Electric steel" in Moscow region (tungsten powder and cemented carbides), JSC "Polema" in Tula (tungsten powder, covering and bars) and JSC "Sandvik-MKTC" in Moscow (hard metal plates and cutting tools).

俄罗斯也有一些公司并不以钨初级产品为主营业务，如位于乌拉尔地区的切利尔宾斯基电冶厂（Chelyabinsky electrometallurgical plant），以钨铁和特种钢为主要产品；位于莫斯科地区的电炉炼钢公司以钨粉和硬质合金为主要产品；位于图拉地区的波勒玛公司，以钨粉、钨涂层及钨条为主要产品；位于莫斯科的山特维克-麦克提克公司（Sandvik-MKTC）以硬质合金板材和切割刀具为主要产品。

During the past decade, considerable research effort has been directed towards the development of in situmetal matrix composites, in which the reinforcements are formed in situ by exothermal reactions betweenelements or between elements and compounds. Using this approach, MMCs with a wide range of matrix materials(including aluminum, titanium, copper, nickel and iron), and second-phase particles including borides, carbides

在过去的几十年中，对于金属基复合材料我们做了大量的研究工作，这些复合材料的增强体都是通过元素之间或者元素与化合物之间的原位放热反应而加入到基体中的，这种方法广泛应用在生产金属基体材料（包括铝、钛、铜、镍和铁）和第二相颗粒中（包括硼、碳、氮、氧和他们的混合物）。

The structures and composition of the precipitates at PHT powder surface and at PPB of hipped materials are investigated. The formation of PPB precipitation is directly related to the surface conditions of as-atomized powder. Precipitates at PPB are mainly MC carbides and ZrO〓.

预处理粉末表面及压坯原始颗粒边界的表面成分及析出相分析表明，原始颗粒边界析出的形成是与雾化粉末表面状况直接相关的，表面或界面析出相主要是MC型的碳化物和ZrO〓。

Meanwhile, it is also illustrates that the smaller chromium carbides have less restriction to forming thin splats than larger ones, which beneficial to limit the size of pieces removed by impact of the sand particles, and the higher volume fraction of small chromium carbide may effect the erosion through enhancing interlamellar bonding of the splats which leads to increase the erosion resistance of the coating.

揭示了细小碳化物颗粒有利于获得扁平粒子厚度较小的涂层结构，可减小涂层冲蚀磨损过程中每次剥落的体积；较高含量的细小碳化物颗粒有利于提高涂层扁平粒子间的结合，从而提高涂层抗冲蚀磨损性能。

He results of TEM and SAD indicated that there were two kinds of carbides precipitated during the aging treatment. They were intergranular M6C type carbide and lamellate M2C type carbide, which both rich in Mo.

EM和SAD结果表明，时效过程中，有多角状圆粒M6C，长片状M2C型两类富含Mo的碳化物析出，对合金有较明显的强化作用。

The results show that Re-K-Zn compound modificator has remarkable effects in high Chromium white cast iron when the modificator has 0.5%Re+2.0%K+0.008%Zn. The modificator not only or bar-like carbides but also improved the mechanical properties of high chromium white cast iron,with its impact toughness enhanced from 7.0J/cm2 to 11.7J/cm2 and its hardness enhanced from 54HRC to 57HRC, and the wear resistance increased by 350%.

实验结果表明：Re-K-Zn复合变质剂在高铬白口铸铁中有显著作用，而且当三者的加入量约为0.5%Re+2.0%K+0.008%Zn时，能显著细化组织，使其组织中网状碳化物变为粒状或条状，提高了高铬白口铸铁的力学性能，铸态冲击韧性由原来的7.0J/cm2提高到11.7J/cm2，硬度由原来的54HRC提高到57HRC，相对耐磨性能提高了3.5倍。

Laser melting could restrain the formation of carbides to a large extent and the peritectic reaction in low carbon steel.

各种材料经激光熔凝处理后均可得到两种组织，一是高硬度的共晶表层（~1070HV），二是硬度较低的枝晶组织，前者主要因碳化物和M强化，而且组织细密所致，后者主要因γ含量很高所致。

Among them, the catalysts with the support of SAPO zeolite performed well properties, Pt catalysts exhibited better performance than Pd catalysts, the activity and selectivity of noble catalysts were much better than that of non-noble metal catalysts. The carbides and oxides of W and Mo also performed well for n-heptane isomerization.

正庚烷异构化催化剂中，研究较多的是以SAPO、HZSM-5和Y、β型分子筛为载体的贵金属催化剂，其中SAPO分子筛载体的性能较优，Pt比Pd具有更好的催化性能，非贵金属／分子筛催化剂的活性比贵金属／分子筛催化剂相差较大。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。