under tempering

The results show that matrix is mainly tempered martensite under the condition of quenching at low temperature and tempering at 550 ℃; retained austenite content increases and martensite content relatively decreases along with the increase of quenching temperature, meanwhile, the wear resistance improves.

结果表明：550℃回火条件下，低温淬火时基体组织以回火马氏体为主，随着淬火温度升高，残余奥氏体含量升高，马氏体含量相对减少，而耐磨性随淬火温度升高逐渐升高；

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The results showed that two of surfacing layers under 850 ℃ air cooling, 850 ± 5 ℃ oil cooling and 400 ℃ tempering had higher hardness and better wear corrosion resistance, and the technological processes were simplified as well.

结果表明，两种硬质合金堆焊层经850℃空冷、850±5℃油淬+400℃回火后，均具有较高的硬度和优异的耐腐蚀磨损性能，且简化了表面处理工艺。

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Tempering treatment resulted in formation of tempered martensite and the spalling resistance under repeated strong impact abrasion working conditions was largely improved.

在反复强力冲击工况条件下，回火得到回火马氏体，抗冲击剥落能力大为增加。

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The New Way Out of Non-Criminal Punishment Measures under the Policy of Tempering Justice with Mercy

宽严相济刑事政策下我国非刑罚处罚措施的新出路

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At the same tempering time and tempering temperature, as the quenching temperature rise, the corrosion resistance of the samples decreased. But under quenched at 930 ° C for 30 minutes, the best comprehensive performance can been obtained.

随着淬火温度的增加，相同的回火温度与回火时间的试样的力学性能在930°C淬火时达到最高，而耐蚀性能则不断降低。

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