The microstructure and property of the free cutting unquenched plastic die steels have been studied.

研究了系非调质塑料模具钢的组织与性能。

The microstructures were studied with optical microscope, X-ray diffraction,electron probe and glow discharge spectro scopy analysis.

用光学微镜、X-光、电子探针及辉光逐层分析等方法进行了微观分析。

Through XRD and the SEM microscopic test method, the microstructure of hydro-thermal synthesis hardenite has studied .

通过XRD和SEM微观测试手段，研究了粘土-硅质石屑-水泥-石灰体系水热成硬化体组成的微观结构。

The relation of internal microstructure damage degree of furnace tube in a ethylene pyrolyzer with weldability was studied.

研究了乙烯裂解炉服役炉管材料内部的组织损伤程度与焊接性的关系。

As shown in Fig.1, precipitates microstructure confirms that near solvus temperature precipitation can limit grain boundary precipitation.

由调整温度, 五谷降雨雪由生核能量制并且唯一晶界降雨雪存在。

The effects of carbonous density and solid volume loading on the microstructures, and the performance of the new method were investigated.

通过对焊缝相微结构的分析,结计算机图形处理软件计算出焊缝的烧结密度。

By means of analysis, hardness test, abrasion test, this paper studies the effect of boron-sulphurizing on microstructure and properties of boronized layer.

通过相分析、硬度测试、磨损测定，研究了硼硫共渗对渗硼层组织和性能的影响。

The observation on the microstructure of six orchids demonstrated that they have the typical orchidaceous roots with velamen and thick cortical tissue.

本文对密花石斛等六种兰科植物根的微结构进行了比较观察。

Effects of master alloy of quasicrystal containing magnesium additions and solution treatment on microstructure and mechanical properties of AZ91 magnesium alloy were studied.

研究了镁基准晶中间和固溶处理工艺对AZ91微组织和力学性能的影响。

The microstructure of a multiphase material was optimized, and property of auxetic performance was obtained, helping to prove the validity of this method.

以一种多相材料结构为例进行了细观结构的优化，并获得了具有负泊松比的特性，从而验证了所提出方法的理性。

Analysis of the Stem-fillet blend fracture of exhaust valve was conducted by means of macroexamination, microstructure examination, chemical composition analysis and hardness test.

摘要采用宏、微观检验、化学成分分析和硬度测试等方法对断头的排气门进行了分析。

The microstructure of the sample glaze layer under polarizing microscope and reflecting microscope has showed acicular hausmannite crystals on the glaze layer sur...

通过偏光微镜和反光微镜观察试样釉层的微结构,发现虹彩釉在成釉过程中釉层表面析出了针状的黑锰矿晶体。

An investigation was made on the effect of rewelding on mechanical properties of Ultra-low carbon austenitic stainless steel based on mechanical properties test and microstructure examination.

通过对反复焊接1～5次的超低碳奥氏体不锈钢力学性能的试验及相组织的分析,研究了反复焊接对超低碳奥氏体不锈钢力学性能的影响。

Microstructure analysis showed significantly consistent change in nodule counts and possibly the numbers of microshrinkage pores present from the bottom to the top of heavy-section casting.

在厚断面 铸件取样位置不同时，由于浇铸凝固时间不同，疲劳强度也不同。

Based on the macroscopic characteristics, microstructure and fabric of the tectonite in the Yingxin fault zone,this paper proves that there are two types of tectonite, i.

依据龙门山中段映秀断裂带构造岩的宏观地质特征、微构造及组构特征，论证了构造岩具有脆性和韧性两大类型，形成序次上为先韧性后脆性。

The microstructure deformation in the aging process of the alloy has been stated ,and the heteromorphy has been found the cause of the natural aging process of the 2011 alloy .

分析了工艺参数对力学性能的影响,阐述了时效过程中的微观组织变化,找出了2011自然时效进程缓慢的原因是异质形核。

Microstructures of coal containing iron ore concentrates reduced by microwave heating are classified as the metal iron microstructure, the wustite microstructure and the slag phase microstructure.

微波加热含碳铁矿粉还原矿相结构分为属铁、浮氏体和渣相结构。