The relation of internal microstructure damage degree of furnace tube in a ethylene pyrolyzer with weldability was studied.
研究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。
The relation of internal microstructure damage degree of furnace tube in a ethylene pyrolyzer with weldability was studied.
研究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。
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结构分为
属铁、浮氏体和渣
结构。
The microstructure and property of the free cutting unquenched plastic die steels have been studied.
研究易切削系非调质塑料模具钢的组织与性
。
The microstructure of a multiphase material was optimized, and property of auxetic performance was obtained, helping to prove the validity of this method.
以一种多材料结构为例进
观结构的优化,并获得
具有负泊松比的特性,从而验证
所提出方法的合理性。
As shown in Fig.1, precipitates microstructure confirms that near solvus temperature precipitation can limit grain boundary precipitation.
由调整温度, 五谷降雨雪由生核量限制并且唯一晶界降雨雪存在。
The microstructures were studied with optical microscope, X-ray diffraction,electron probe and glow discharge spectro scopy analysis.
用光学显微镜、X-光、电子探针及辉光逐层分析等方法进微观分析。
The effects of carbonous density and solid volume loading on the microstructures, and the performance of the new method were investigated.
通过对焊显微结构的分析,结合计算机图形处理软件计算出焊
的烧结密度。
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分析。
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显微结构进比较观察。
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,研究粘土-硅质石屑-水泥-石灰体系水热合成硬化体组成的微观结构。
Effects of master alloy of quasicrystal containing magnesium additions and solution treatment on microstructure and mechanical properties of AZ91 magnesium alloy were studied.
研究镁基准晶中间合
和固溶处理工艺对AZ91合
显微组织和力学性
的影响。
The mechanical properties of horniness segmer graft toughening epoxy resin, toughening effect and microstructure of the fracture surface of toughened condensate have been studied on.
研究硬质链段接枝增韧环氧树脂的机械性
,分析
增韧剂的增韧效果以及增韧后固化物断面的显微结构。
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 .
分析工艺参数对合
力学性
的影响,阐述
合
时效过程中的微观组织变化,找出
2011合
自然时效进程缓慢的原因是异质形核。
Abstract Microstructure evolution of hypereutectoid steel duning cold rolling with different reduction rate (from 0 to 81.6%)was studied by SEM and TEM.
摘要 用SEM、TEM研究不同冷轧变形量(变形量0~81.6%)的过共析钢的组织演变规律。
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、显微构造及组构特征,论证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 of the sample glaze layer under polarizing microscope and reflecting microscope has showed acicular hausmannite crystals on the glaze layer sur...
通过偏光显微镜和反光显微镜观察试样釉层的显微结构,发现虹彩釉在成釉过程中釉层表面析出针状的黑锰矿晶体。
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。
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的试验及
组织的分析,研究
反复焊接对超低碳奥氏体不锈钢力学性
的影响。
By means of analysis, hardness test, abrasion test, this paper studies the effect of boron-sulphurizing on microstructure and properties of boronized layer.
通过分析、硬度测试、磨损测定,研究
硼硫共渗对渗硼层组织和性
的影响。
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