What is the advantage in using expensive alloying elements (Cr, V, Nb, W, Ti etc.) when 58-62 HRC can easily be achieved in low-alloyed Fe, C alloys?

Q: What is the advantage in using expensive alloying elements (Cr, V, Nb, W, Ti etc.) when 58-62 HRC can easily be achieved in low-alloyed Fe, C alloys?

[fusion_builder_container hundred_percent="no" hundred_percent_height="no" hundred_percent_height_scroll="no" hundred_percent_height_center_content="yes" equal_height_columns="no" menu_anchor="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" background_color="" background_image="" background_position="center center" background_repeat="no-repeat" fade="no" background_parallax="none" enable_mobile="no" parallax_speed="0.3" video_mp4="" video_webm="" video_ogv="" video_url="" video_aspect_ratio="16:9" video_loop="yes" video_mute="yes" video_preview_image="" border_size="" border_color="" border_style="solid" margin_top="" margin_bottom="" padding_top="" padding_right="" padding_bottom="" padding_left=""][fusion_builder_row][fusion_builder_column type="1_1" layout="1_1" spacing="" center_content="no" link="" target="_self" min_height="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" background_color="" background_image="" background_position="left top" background_repeat="no-repeat" hover_type="none" border_size="0" border_color="" border_style="solid" border_position="all" padding_top="" padding_right="" padding_bottom="" padding_left="" dimension_margin="" animation_type="" animation_direction="left" animation_speed="0.3" animation_offset="" last="no"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="default" rule_size="" rule_color="" class="" id=""] The difference lies in the micro-hardness of various carbides formed. Higher the hardness, better is the wear-resistance. This is the primary reason why two different alloys with same bulk hardness (for eg. 58-62 HRC) have completely different wear rates. [/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]

The difference lies in the micro-hardness of various carbides formed. Higher the hardness, better is the wear-resistance. This is the primary reason why two different alloys with same bulk hardness (for eg. 58-62 HRC) have completely different wear rates.

By Hardcarb|2018-10-20T18:32:37+05:30July 9th, 2018|hardfacing, wearplates|0 Comments

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