相变强化

在相变强化基础上，通过Nb微合金化，发挥Nb的细晶强化和析出强化作用，是提高双相钢强度级别的重要手段。

On the basic of phase transformation strengthening , micro-alloying of Nb is important to promote strength grade of DP steel by strengthening of grain refining and precipitation .

500MPa超细晶钢的强化方式应以细晶强化为主，配合相变强化和沉淀强化，显微组织应为在超细（3～5μm）的铁素体基体上分布适量的贝氏体。

The strengthening mechanisms for 500 MPa ultra-fine grain steels should be grain refinement strengthening , transformation strengthening and precipitation strengthening .

而γR的相变强化与磨损状况密切相关。

The strengthening of phase transformation of γ R is closely correlated with abrasive wearing situation .

采用铬酐&硫酸体系或者重铬酸盐并用熔融氧化工艺法，都能够成功地对4Cr13不锈钢进行激光相变强化前的预处理。

Results have been achieved as follow : 4Cr13 stainless steel manages to be pretreated before laser transition hardening with chromate-vitriol or dichromate .

T＿1高速钢的激光相变强化研究

Study on laser transformation hardening for T1 high speed steel

激光相变强化非稳态温度场的研究易变形件的激光相变强化

Study on transient temperature field induced by laser transformation hardening

硼铸铁等离子相变强化层的组织与性能

Structure and Properties of Plasma Phase Transformation Strengthening Layer of Boron Cast Iron

相变强化换热对模具局部冷却能力影响的数值分析

Study on the Cooling Capacity of Partial Mould by Phase Transformation Heat Changing

高速钢激光相变强化层的耐磨性及刀具的切削性能

Wear Resistance of Laser Strengthened High Speed Steel and Cutting Property of the Tools

流体非平衡相变强化传热的场协同分析

Analysis of fields synergism in non-linear enhanced transfer processes of fluid phase change of non-equilibrium

Super-SS400钢的强化机制包括4部分；细晶强化、固溶强化、亚结构强化和相变强化。

The strengthening mechanisms include the following : solid solution , fine-grain , substructure and multiple phase hardening .

45钢激光相变强化梯度组织的研究（原始组织的影响）

The Study of the Gradient Structure of 45 Steel by Laser Transformation Hardening ( The Influence of original microstructure )

低碳锰铌钢的主要强化机制有细晶强化、贝氏体相变强化和析出强化。

It is also concluded that the strengthening mechanisms included fine ferrite grain hardening , bainite transformation hardening and precipitation hardening .

在相同的激光处理工艺参数下，原始组织为淬火高温回火态时，激光相变强化的效果最显著，正火态次之。

Among the five original microstructure , the effect of strengthening of hardening and tempering is the best , then the normalizing .

以异丙醇-水溶液为研究物系，引入空气对垂直管内流动相变强化传热进行了实验研究。

The heat transfer enhancement of the mixtures of isopropyl alcohol and water inside vertical tube was experimented in the presence of air .

以CSiMn系相变强化冷轧超高强度钢板为研究对象，研究了连续退火快速冷却工艺对力学性能的影响。

Cold rolled phase transformation hardened C-Si-Mn ultra high strength steel was employed to study the effect of cooling parameters on the mechanical properties .

加速冷却含钒钢的显微组织为细小的多边形铁素体和粒状贝氏体组织，由此获得相变强化。

Comparing with the conventional ferrite-pearlite steel after slow cooling , the accelerated cooled steel has a microstructure of granular bainite and fine polygonal ferrite .

本文探讨并初步实现了激光表面相变强化处理的专家系统，该系统结合了基于关系型数据库的知识系统和二维传热相变的数值分析模型。

This study discusses and realizes elementarily the expert system of laser surface transformation hardening , which based on relevant database knowledge system and on basis of two-dimentional heat-conduct analyse models .

通过试验，分析研究了45钢激光相变强化梯度分布的显微组织特征以及原始组织对45钢激光相变强化梯度组织及其显微硬度的影响。

This paper mainly studied the gradient microstructure of 45 steel by laser transformation hardening ( LTH ) and the influence of different original microstructure on the gradient microstructure and its microhardness .

并综合引入形变强化、相变强化、第二相弥散强化效应及细晶强化效应，使两种状态试验钢晶粒尺寸均细化到1～2μm。

Meanwhile , the effects of deformation strengthening , phase transformation strengthening , second phase strengthening and grain boundary strengthening were introduced . The results showed that grain size of the tested steels with two different heat treatments was refined to 1 ~ 2 μ m.

介绍了管式换热器无相变时强化对流给热的措施。

This paper introduces the intensive measures for convective heat transfer under no-phase transformation on tubular heat exchangers .

提出了将相变用于过程强化的原理和方法。

A principle and method was proposed for process intensification by applying phase transition .

应力诱发相变的增韧和强化；

The toughening and strengthen - ing resulted from phase transformation induced by stresses ;

热定形性，热变定性相变蓄热换热强化及蓄热器性能实验相变储热预热式热泵热水器节能特性分析

Heat Transfer Enhancement of Phase Change Thermal Storage and Experimental Research on Characteristics of Phase Change Heat Exchanger

不同孔隙结构的炭材料作为石蜡相变储能材料强化传热载体

Carbon matrices with different pore structures as heat transfer intensifier in paraffin wax / carbon thermal energy storage system