The definition of the technical parameters and the possibility to omit the low tempering have been discussed also.
并论述工艺参数的确定和讨论了取消低温回火工序的可能性。
The results show that the main causes of fracture is composition segregation and low strength resut from no quenching and tempering treatment.
结果表明，产生断裂的主要原因是材料内部成分偏析及未按要求对材料进行调质处理导致材料的强度较低。
This paper has studied hardness changing law of low carbon austenite-martensite double phases stainless steel at different tempering temperatures.
研究了低碳奥氏体—马氏体双相不锈钢在不同回火温度下硬度变化规律。
These experimental methods have assured the successful proceeding of the research work on the auto tempering of low-carbon martensites and yielded significant results.
这些试验方法，保证了自回火的研究能顺利进行，并得出了有价值的研究结果。
The effect of hardening and tempering process on the organization and performance of high-strength and high-toughness non-hardened-and tempered steel of low carbon martensite is researched.
研究了淬火、回火工艺对低碳马氏体型高强度高韧性非调质钢的组织和性能的影响。
Immediate quenching and tempering process of steel T10 after low temperature salt bath chromizing was studied.
研究了T10钢在低温盐浴渗铬后直接淬火并回火工艺。
The low content of alloying elements (Mo, V) and tempering insufficiency of parts also affect the generation of the crack. Preventive measures are proposed to decrease or eliminate the crack.
合金元素钼、钒含量偏低，工件热处理回火不充分也会影响到裂纹的产生，并提出了相应的预防措施。
Because the hardness of substrate was low after vacuum melting, the hardness of substrate was increased by hardening and tempering methods.
由于真空烧结涂层基体的硬度较低，采用对基体调质处理的方法来提高涂层基体的硬度。
The cyclic strain low cycle fatigue and cyclic stress ratcheting failure of 45 carbon steel treated by quenching and tempering were experimentally investigated.
对调质处理的45碳索结构钢进行了应变循环低周疲劳实验以及应力控制棘轮失效实验。
The point of intersection of elastic line and plastic line moves toward the low cycle life with the hardness of the spring steel raised after tempering from the strain fatigue curve.
在应变疲劳曲线上，弹性线和塑性线的交点随弹簧钢回火后硬度的升高而向低循环寿命移动；
Advanced high strength after quenching and tempering has good mechanical properties and low temperature impact toughness.
高强度的高级淬火低温回火后具有良好的综合力学性能和低温冲击韧度。
The variation of properties and microstructure of the low carbon microalloyed steel with vanadium was analyzed after tempering at different temperatures.
研究了含钒低碳微合金钢经过不同温度回火的性能和组织的变化关系。
Hardness can do 61 — 65hrc maturation process is: annealing, softening after casting machining, machining of air cooling after quenching and low temperature stress tempering.
硬度能做到61——65hrc成熟工艺是：铸造后软化退火，便于加工，加工后空冷淬火加低温去应力回火。
The practice has proved the steel pipe produced by on- line water quenching and tempering a rational technology with low cost and strong marketing competition.
实践证明，利用轧后余热对钢管进行在线水淬，工艺合理，加工成本低，产品具有较强的市场竞争力。
The influences of quenching and tempering temperature on microstructure and mechanical properties of medium-carbon-low-alloy wear-resistant cast steel were investigated.
研究了淬火和回火温度对中碳低合金耐磨铸钢组织和力学性能的影响。
The material chosen for this paper is NM360A whose heat treatment state is quenching + tempering at low temperature, it has excellent wear resistant performance.
本文所选择的的材料为淬火+低温回火状态的NM360A，具有优秀的耐磨性能。
The material chosen for this paper is NM360A whose heat treatment state is quenching + tempering at low temperature, it has excellent wear resistant performance.
本文所选择的的材料为淬火+低温回火状态的NM360A，具有优秀的耐磨性能。
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